├── .github
    └── PULL_REQUEST_TEMPLATE.md
├── .gitignore
├── CONTRIBUTING.md
├── LICENSE
├── README.md
├── SpotifyClient.cpp
├── SpotifyClient.h
├── TouchControllerWS.cpp
├── TouchControllerWS.h
├── esp8266-spotify-remote.ino
├── esp8266-spotify-remote.sln
├── esp8266-spotify-remote.vcxproj
├── esp8266-spotify-remote.vcxproj.filters
├── images.h
├── images
    ├── SpotifyAppSettings.png
    ├── SpotifyAppSettingsSave.png
    ├── SpotifyAppSignUp1.png
    ├── SpotifyConnectScreen.png
    ├── SpotifyCredentials.png
    ├── SpotifyDashboard.png
    └── SpotifyppSignUp3.png
├── mem-analysis.txt
└── settings.h


/.github/PULL_REQUEST_TEMPLATE.md:
--------------------------------------------------------------------------------
1 | Make sure all boxes are checked (add 'x' inside the brackets) when you submit your contribution, **remove this sentence** before doing so.
2 | 
3 | - [ ] This PR is compliant with the [other contributing guidelines](https://github.com/ThingPulse/esp8266-spotify-remote/blob/master/CONTRIBUTING.md) as well (if not, please describe why).
4 | - [ ] I have thoroughly tested my contribution.
5 | - [ ] I have updated README if my changes require changes to documentation there.
6 | 
7 | \<Description of and rationale behind this PR\>
8 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
  1 | ## Ignore Visual Studio temporary files, build results, and
  2 | ## files generated by popular Visual Studio add-ons.
  3 | 
  4 | # User-specific files
  5 | *.suo
  6 | *.user
  7 | *.userosscache
  8 | *.sln.docstates
  9 | 
 10 | # User-specific files (MonoDevelop/Xamarin Studio)
 11 | *.userprefs
 12 | 
 13 | # Build results
 14 | [Dd]ebug/
 15 | [Dd]ebugPublic/
 16 | [Rr]elease/
 17 | [Rr]eleases/
 18 | [Xx]64/
 19 | [Xx]86/
 20 | [Bb]uild/
 21 | bld/
 22 | [Bb]in/
 23 | [Oo]bj/
 24 | 
 25 | # Visual Studio 2015 cache/options directory
 26 | .vs/
 27 | # Uncomment if you have tasks that create the project's static files in wwwroot
 28 | #wwwroot/
 29 | 
 30 | # MSTest test Results
 31 | [Tt]est[Rr]esult*/
 32 | [Bb]uild[Ll]og.*
 33 | 
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 35 | *.VisualState.xml
 36 | TestResult.xml
 37 | 
 38 | # Build Results of an ATL Project
 39 | [Dd]ebugPS/
 40 | [Rr]eleasePS/
 41 | dlldata.c
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 46 | 
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 79 | *.opendb
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134 | DocProject/Help/html
135 | 
136 | # Click-Once directory
137 | publish/
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139 | # Publish Web Output
140 | *.[Pp]ublish.xml
141 | *.azurePubxml
142 | 
143 | # TODO: Un-comment the next line if you do not want to checkin
144 | # your web deploy settings because they may include unencrypted
145 | # passwords
146 | #*.pubxml
147 | *.publishproj
148 | 
149 | # NuGet Packages
150 | *.nupkg
151 | # The packages folder can be ignored because of Package Restore
152 | **/packages/*
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154 | !**/packages/build/
155 | # Uncomment if necessary however generally it will be regenerated when needed
156 | #!**/packages/repositories.config
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158 | *.nuget.props
159 | *.nuget.targets
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178 | 
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181 | [Ss]tyle[Cc]op.*
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200 | UpgradeLog*.htm
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203 | *.mdf
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228 | **/*.DesktopClient/GeneratedArtifacts
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230 | **/*.Server/GeneratedArtifacts
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232 | _Pvt_Extensions
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236 | ModelManifest.xml
237 | 
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239 | .paket/paket.exe
240 | 
241 | # FAKE - F# Make
242 | .fake/
243 | 
244 | __vm/*.*
245 | 


--------------------------------------------------------------------------------
/CONTRIBUTING.md:
--------------------------------------------------------------------------------
 1 | # Contributing to ThingPulse Spotify Remote
 2 | 
 3 | :+1::tada: First off, thanks for taking the time to contribute! :tada::+1:
 4 | 
 5 | The following is a set of guidelines for contributing to the ThingPulse Spotify Remote project on GitHub. These are just guidelines, not rules, use your best judgment and feel free to propose changes to this document in a pull request.
 6 | 
 7 | It is appreciated if you raise an issue _before_ you start changing the code, discussing the proposed change; emphasizing that you are proposing to develop the patch yourself, and outlining the strategy for implementation. This type of discussion is what we should be doing on the issues list and it is better to do this before or in parallel to developing the patch rather than having "you should have done it this way" type of feedback on the PR itself.
 8 | 
 9 | ### Table Of Contents
10 | * [General remarks](#general-remarks)
11 | * [Writing Documentation](#writing-documentation)
12 | * [Working with Git and GitHub](#working-with-git-and-github)
13 |   * [General flow](#general-flow)
14 |   * [Keeping your fork in sync](#keeping-your-fork-in-sync)
15 |   * [Commit messages](#commit-messages)
16 | 
17 | ## General remarks
18 | We are a friendly and welcoming community and look forward to your contributions. Once your contribution is integrated into this repository we feel responsible for it. Therefore, be prepared for constructive feedback. Before we merge anything we need to ensure that it fits in and is consistent with the rest of code.
19 | If you made something really cool but won't spend the time to integrate it into this upstream project please still share it in your fork on GitHub. If you mention it in an issue we'll take a look at it anyway.
20 | 
21 | ## Writing Documentation
22 | If you contribute features for this project that require altering the documentation in the README then please include those in your PR.
23 | 
24 | ## Working with Git and GitHub
25 | 
26 | Avoid intermediate merge commits. [Rebase](https://www.atlassian.com/git/tutorials/merging-vs-rebasing) your feature branch onto `master` to pull updates and verify your local changes against them before placing the pull request.
27 | 
28 | ### General flow
29 | 1. [Fork](https://help.github.com/articles/fork-a-repo) this repository on GitHub.
30 | 1. [Create a branch](https://help.github.com/articles/creating-and-deleting-branches-within-your-repository/#creating-a-branch) in your fork on GitHub **based on the `master` branch**.
31 | 1. Clone the fork on your machine with `git clone https://github.com/<your-account>/<weather-station-fork>.git`
32 | 1. `cd <weather-station-fork>` then run `git remote add upstream https://github.com/ThingPulse/espaper-weatherstation`
33 | 1. `git checkout <branch-name>`
34 | 1. Make changes to the code base and commit them using e.g. `git commit -a -m 'Look ma, I did it'`
35 | 1. When you're done:
36 |  1. Think about [squashing (some of) your commits](http://www.andrewconnell.com/blog/squash-multiple-git-commits-into-one). There are [several ways](http://stackoverflow.com/a/5201642/131929) to do this. There's no need to squash everything into a single commit as GitHub offers to do this when we merge your changes. However, you might want to trim your commit history to relevant chunks.
37 |  1. Bring your fork up-to-date with the upstream repo ([see below](#keeping-your-fork-in-sync)). Then rebase your branch on `master` running `git rebase master`.
38 | 1. `git push`
39 | 1. [Create a pull request](https://help.github.com/articles/creating-a-pull-request/) (PR) on GitHub.
40 | 
41 | This is just one way of doing things. If you're proficient in Git matters you're free to choose your own. If you want to read more then the [GitHub chapter in the Git book](http://git-scm.com/book/en/v2/GitHub-Contributing-to-a-Project#The-GitHub-Flow) is a way to start. [GitHub's own documentation](https://help.github.com/categories/collaborating/) contains a wealth of information as well.
42 | 
43 | ### Keeping your fork in sync
44 | You need to sync your fork with the upstream repository from time to time, latest before you rebase (see flow above).
45 | 
46 | 1. `git fetch upstream`
47 | 1. `git checkout master`
48 | 1. `git merge upstream/master`
49 | 
50 | ### Commit messages
51 | 
52 | From: [http://git-scm.com/book/ch5-2.html](http://git-scm.com/book/ch5-2.html)
53 | <pre>
54 | Short (50 chars or less) summary of changes
55 | 
56 | More detailed explanatory text, if necessary.  Wrap it to about 72
57 | characters or so.  In some contexts, the first line is treated as the
58 | subject of an email and the rest of the text as the body.  The blank
59 | line separating the summary from the body is critical (unless you omit
60 | the body entirely); tools like rebase can get confused if you run the
61 | two together.
62 | 
63 | Further paragraphs come after blank lines.
64 | 
65 |  - Bullet points are okay, too
66 | 
67 |  - Typically a hyphen or asterisk is used for the bullet, preceded by a
68 |    single space, with blank lines in between, but conventions vary here
69 | </pre>
70 | 
71 | Don't forget to [reference affected issues](https://help.github.com/articles/closing-issues-via-commit-messages/) in the commit message to have them closed automatically on GitHub.
72 | 
73 | [Amend](https://help.github.com/articles/changing-a-commit-message/) your commit messages if necessary to make sure what the world sees on GitHub is as expressive and meaningful as possible.
74 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | MIT License
 2 | 
 3 | Copyright (c) 2018 ThingPulse GmbH
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
  1 | # ThingPulse esp8266-spotify-remote
  2 | 
  3 | [![ThingPulse logo](https://thingpulse.com/assets/ThingPulse-w300.svg)](https://thingpulse.com)
  4 | 
  5 | ## Purpose of this project
  6 | 
  7 | This project lets you control a Spotify player (phone, browser, etc) from an ESP8266. Album artworks as well as title and artist name
  8 | are fetched from Spotify's Web API over WiFi and displayed on a ILI9341 color TFT screen. The currently played song can be
  9 | paused, played and skipped to the next or previous song in the playlist.
 10 | 
 11 | A full OAuth 2.0 web flow is used to acquire the necessary access and refresh tokens to permit the user to control the player. In order to
 12 | run this project on your device you will have to setup an application on Spotify's developer dashboard.
 13 | 
 14 | ## Features
 15 | 
 16 |  - Artwork Download
 17 |  - Control Player on touch screen: Play, Pause, Next, Prev
 18 |  - Authentication and Authorization (OAuth 2.0 flow) On device.
 19 | 
 20 | Demo Video:
 21 | 
 22 |  [![Demo Video](https://img.youtube.com/vi/xKmXMUoo8ps/0.jpg)](https://www.youtube.com/watch?v=xKmXMUoo8ps)
 23 | 
 24 | ## Recommended Hardware
 25 | 
 26 | We developed this project specifically for our [ESP8266 Color Kit](https://thingpulse.com/product/esp8266-wifi-color-display-kit-2-4/). If you appreciate the hard work and our willingness to open-source projects like this one then please support us by buying our hardware.
 27 | 
 28 | <a href="https://thingpulse.com/product/esp8266-wifi-color-display-kit-2-4/">
 29 |   <img src="https://thingpulse.com/wp-content/uploads/2019/04/ThingPulse-Color-Kit-2-768x534.jpg" width="300">
 30 | </a>
 31 | 
 32 | 
 33 | ## Contributions
 34 | 
 35 | Please see our [Guidelines](CONTRIBUTING.md) if you want to contribute to this project. Contributions are more than welcome!
 36 | 
 37 | ## Service level promise
 38 | 
 39 | <table><tr><td><img src="https://thingpulse.com/assets/ThingPulse-open-source-community.png" width="150">
 40 | </td><td>This is a ThingPulse <em>community</em> project. See our <a href="https://thingpulse.com/about/open-source-commitment/">open-source commitment declaration</a> for what this means.</td></tr></table>
 41 | 
 42 | ## Setup Instructions
 43 | 
 44 | ### Precondition
 45 | 
 46 | The below instructions assume that your Arduino IDE is properly setup to work with the ThingPulse Color Kit. See our standalone tutorials for [setting up the IDE](https://docs.thingpulse.com/how-tos/Arduino-IDE-for-ESP8266/) and [installing the drivers](https://docs.thingpulse.com/how-tos/install-drivers/) if you need help with that.
 47 | 
 48 | ### Prepare Project in Arduino IDE
 49 | 
 50 | 1. Download this project either as ZIP file or check it out with Git
 51 | 1. Open the project in the Arduino IDE.
 52 | 1. Install the required Arduino libraries. Go to Sketch > Include Library... > Manage Libraries.... Then, for each library, put its name into the text field to have its metadata pulled from the internet and displayed below. Select the latest version and install it.
 53 | 	1. [Mini Grafx](https://www.arduinolibraries.info/libraries/mini-grafx) library (by ThingPulse, V 1.0.0 or later)
 54 | 	1. [JPEGDecoder](https://www.arduinolibraries.info/libraries/jpeg-decoder) library (by Bodmer, Makoto Kurauchi, Rich Geldreich, v1.7.8 or later). After installing the library go to your Arduino sketchbook folder (the one configured in Arduino Preferences > Sketchbook location). In that folder open file `libraries/JPEGDecoder/src/User_config.h` and comment line 5 so that it reads `//#define LOAD_SD_LIBRARY`.
 55 | 	1. [JSON Streaming Parser](https://www.arduinolibraries.info/libraries/json-streaming-parser) library (by Daniel Eichhorn, v1.0.5 or later)
 56 | 	1. [XPT2046 Touch](https://www.arduinolibraries.info/libraries/xpt2046_touchscreen) (by Paul Stoffregen, v1.4 or later)
 57 | 1. Set your *WiFi credentials* in the `settings.h` file
 58 | 1. Complete the steps below to get the values for the *Spotify settings* required in `settings.h`
 59 | 
 60 | ### Get Access to the Spotify API
 61 | 
 62 | 1. Go to [https://developer.spotify.com/dashboard/login](https://developer.spotify.com/dashboard/login) and login to or sign up for the Spotify Developer Dashboard
 63 | 
 64 | 2. Click on "My New App"
 65 | <img src="./images/SpotifyDashboard.png" width="400">
 66 | 
 67 | 3. Fill out the form. Give your new app a name you can attribute to this project. It's safe to select "I don't know" for the type of application.
 68 | <img src="./images/SpotifyAppSignUp1.png" width="400">
 69 | 
 70 | 4. At the end of the 3 steps click "Submit"
 71 | <img src="./images/SpotifyppSignUp3.png" width="400">
 72 | 
 73 | 5. Set the unique Client ID and Client Secret as values for the respective variables in `settings.h`
 74 | <img src="./images/SpotifyCredentials.png" width="400">
 75 | 
 76 | 6. Click on "Edit Settings". Add "http://esp8266.local/callback/" to the Redirect URIs section.
 77 | 
 78 |    **NOTE** If you're running more than ThingPulse Spotify Remote in the same WiFi network you should choose a unique name rather than "esp8266". Regardless of what you choose it has to reflect what you set as `espotifierNodeName` in `settings.h`
 79 | <img src="./images/SpotifyAppSettings.png" width="400">
 80 | 
 81 | 7. Don't forget to save your settings.
 82 | <img src="./images/SpotifyAppSettingsSave.png" width="400">
 83 | 
 84 | ### Compile and run the application
 85 | 
 86 | After all this configuration it's about time to run the application!
 87 | 
 88 | 1. First check the configuration in `settings.h` one more time to ensure the Spotify values match those set on the Spotify Developer Dashboard. Better safe than sorry, they say.
 89 | 
 90 | 2. Attach your [ESP8266 Color Kit](https://thingpulse.com/product/esp8266-wifi-color-display-kit-2-4/) to your computer and select the correct serial port and flash settings in the Arduino IDE as per https://docs.thingpulse.com/guides/wifi-color-display-kit/#select-flash-mode-and-flash-size
 91 | 
 92 | 3. Upload the code to your ESP8266
 93 | 
 94 | 4. When you run this the first time you'll have to go through additional steps. The display will ask you to open the browser at a specific location. This will redirect you to the dialog below.
 95 | <img src="./images/SpotifyConnectScreen.png" width="400">
 96 | 
 97 | 5. The next step is to calibrate the screen. Click on the white circles
 98 | 
 99 | 6. Now open your Spotify player and start a song. If everything worked out you'll see the song information with artwork on the TFT screen!
100 | 


--------------------------------------------------------------------------------
/SpotifyClient.cpp:
--------------------------------------------------------------------------------
  1 | /**The MIT License (MIT)
  2 | 
  3 |  Copyright (c) 2018 by ThingPulse Ltd., https://thingpulse.com
  4 | 
  5 |  Permission is hereby granted, free of charge, to any person obtaining a copy
  6 |  of this software and associated documentation files (the "Software"), to deal
  7 |  in the Software without restriction, including without limitation the rights
  8 |  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  9 |  copies of the Software, and to permit persons to whom the Software is
 10 |  furnished to do so, subject to the following conditions:
 11 | 
 12 |  The above copyright notice and this permission notice shall be included in all
 13 |  copies or substantial portions of the Software.
 14 | 
 15 |  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 16 |  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 17 |  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 18 |  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 19 |  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 20 |  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 21 |  SOFTWARE.
 22 |  */
 23 | 
 24 | #include <ESP8266WiFi.h>
 25 | #include <ESP8266HTTPClient.h>
 26 | #include <ESP8266mDNS.h>
 27 | 
 28 | #include "SpotifyClient.h"
 29 | 
 30 | SpotifyClient::SpotifyClient(String clientId, String clientSecret, String redirectUri, WiFiClientSecure *wifiClient) {
 31 |   this->clientId = clientId;
 32 |   this->clientSecret = clientSecret;
 33 |   this->redirectUri = redirectUri;
 34 |   this->wifiClient = wifiClient;
 35 | }
 36 | 
 37 | uint16_t SpotifyClient::update(SpotifyData *data, SpotifyAuth *auth) {
 38 |   this->data = data;
 39 | 
 40 |   level = 0;
 41 |   isDataCall = true;
 42 |   currentParent = "";
 43 |   JsonStreamingParser parser;
 44 |   parser.setListener(this);
 45 | 
 46 |   String host = "api.spotify.com";
 47 |   const int port = 443;
 48 |   String url = "/v1/me/player/currently-playing";
 49 |   if (!wifiClient->connect(host.c_str(), port)) {
 50 |     Serial.println("connection failed");
 51 |     return 0;
 52 |   }
 53 | 
 54 |   Serial.print("Requesting URL: ");
 55 |   String request = "GET " + url + " HTTP/1.1\r\n" +
 56 |                "Host: " + host + "\r\n" +
 57 |                "Authorization: Bearer " + auth->accessToken + "\r\n" +
 58 |                "Connection: close\r\n\r\n";
 59 |   // This will send the request to the server
 60 |   Serial.println(request);
 61 |   wifiClient->print(request);
 62 | 
 63 |   int retryCounter = 0;
 64 |   while (!wifiClient->available()) {
 65 |     executeCallback();
 66 |     retryCounter++;
 67 |     if (retryCounter > 10) {
 68 |       return 0;
 69 |     }
 70 |     delay(10);
 71 |   }
 72 |   uint16_t bufLen = 1024;
 73 |   unsigned char buf[bufLen];
 74 |   boolean isBody = false;
 75 |   char c = ' ';
 76 | 
 77 |   int size = 0;
 78 |   wifiClient->setNoDelay(false);
 79 |   uint16_t httpCode = 0;
 80 |   while (wifiClient->connected() || wifiClient->available()) {
 81 |     while ((size = wifiClient->available()) > 0) {
 82 | 
 83 |       if (isBody) {
 84 |         uint16_t len = _min(bufLen, size);
 85 |         c = wifiClient->readBytes(buf, len);
 86 |         for (uint16_t i = 0; i < len; i++) {
 87 |           parser.parse(buf[i]);
 88 |           // Serial.print((char)buf[i]);
 89 |         }
 90 |       } else {
 91 |         String line = wifiClient->readStringUntil('\r');
 92 |         Serial.println(line);
 93 |         if (line.startsWith("HTTP/1.")) {
 94 |           httpCode = line.substring(9, line.indexOf(' ', 9)).toInt();
 95 |           Serial.printf("HTTP Code: %d\n", httpCode);
 96 |         }
 97 |         if (line == "\r" || line == "\n" || line == "") {
 98 |           Serial.println("Body starts now");
 99 |           isBody = true;
100 |         }
101 |       }
102 |       executeCallback();
103 |     }
104 |   }
105 |   if (httpCode == 200) {
106 |     this->data->isPlayerActive = true;
107 |   } else if (httpCode == 204) {
108 |     this->data->isPlayerActive = false;
109 |   }
110 |   // client.flush();
111 |   // client.stop();
112 |   this->data = nullptr;
113 |   return httpCode;
114 | }
115 | 
116 | uint16_t SpotifyClient::playerCommand(SpotifyAuth *auth, String method, String command) {
117 | 
118 |   level = 0;
119 |   isDataCall = true;
120 |   currentParent = "";
121 |   JsonStreamingParser parser;
122 |   parser.setListener(this);
123 | 
124 |   String host = "api.spotify.com";
125 |   const int port = 443;
126 |   String url = "/v1/me/player/" + command;
127 |   if (!wifiClient->connect(host.c_str(), port)) {
128 |     Serial.println("connection failed");
129 |     return 0;
130 |   }
131 | 
132 |   Serial.print("Requesting URL: ");
133 |   String request = method + " " + url + " HTTP/1.1\r\n" +
134 |                "Host: " + host + "\r\n" +
135 |                "Authorization: Bearer " + auth->accessToken + "\r\n" +
136 |                "Content-Length: 0\r\n" + 
137 |                "Connection: close\r\n\r\n";
138 |   // This will send the request to the server
139 |   Serial.println(request);
140 |   wifiClient->print(request);
141 | 
142 |   int retryCounter = 0;
143 |   while (!wifiClient->available()) {
144 |     executeCallback();
145 | 
146 |     retryCounter++;
147 |     if (retryCounter > 10) {
148 |       return 0;
149 |     }
150 |     delay(10);
151 |   }
152 |   uint16_t bufLen = 1024;
153 |   unsigned char buf[bufLen];
154 |   boolean isBody = false;
155 |   char c = ' ';
156 | 
157 |   int size = 0;
158 |   wifiClient->setNoDelay(false);
159 |   uint16_t httpCode = 0;
160 |   while (wifiClient->connected() || wifiClient->available()) {
161 |     while ((size = wifiClient->available()) > 0) {
162 |       if (isBody) {
163 |         uint16_t len = _min(bufLen, size);
164 |         c = wifiClient->readBytes(buf, len);
165 |         for (uint16_t i = 0; i < len; i++) {
166 |           parser.parse(buf[i]);
167 |           // Serial.print((char)buf[i]);
168 |         }
169 |       } else {
170 |         String line = wifiClient->readStringUntil('\r');
171 |         Serial.println(line);
172 |         if (line.startsWith("HTTP/1.")) {
173 |           httpCode = line.substring(9, line.indexOf(' ', 9)).toInt();
174 |           Serial.printf("HTTP Code: %d\n", httpCode);
175 |         }
176 |         if (line == "\r" || line == "\n" || line == "") {
177 |           Serial.println("Body starts now");
178 |           isBody = true;
179 |         }
180 |       }
181 |     }
182 |     executeCallback();
183 |   }
184 |   return httpCode;
185 | }
186 | 
187 | void SpotifyClient::getToken(SpotifyAuth *auth, String grantType, String code) {
188 |   this->auth = auth;
189 |   isDataCall = false;
190 |   JsonStreamingParser parser;
191 |   parser.setListener(this);
192 |   
193 |   // https://accounts.spotify.com/api/token
194 |   const char *host = "accounts.spotify.com";
195 |   const int port = 443;
196 |   String url = "/api/token";
197 |   if (!wifiClient->connect(host, port)) {
198 |     Serial.printf("Connection to %s:%d failed; returning.\n", host, port);
199 |     wifiClient->stop();
200 |     return;
201 |   }
202 | 
203 |   Serial.print("Requesting URL: ");
204 |   String codeParam = "code";
205 |   if (grantType == "refresh_token") {
206 |     codeParam = "refresh_token";
207 |   }
208 |   String authorizationRaw = clientId + ":" + clientSecret;
209 |   String authorization = base64::encode(authorizationRaw, false);
210 |   // This will send the request to the server
211 |   String content = "grant_type=" + grantType + "&" + codeParam + "=" + code + "&redirect_uri=" + redirectUri;
212 |   String request = String("POST ") + url + " HTTP/1.1\r\n" +
213 |                "Host: " + host + "\r\n" +
214 |                "Authorization: Basic " + authorization + "\r\n" +
215 |                "Content-Length: " + String(content.length()) + "\r\n" + 
216 |                "Content-Type: application/x-www-form-urlencoded\r\n" + 
217 |                "Connection: close\r\n\r\n" + 
218 |                content;
219 |   Serial.println(request);
220 |   wifiClient->print(request);
221 | 
222 |   char c;
223 |   boolean isBody = false;
224 |   unsigned long timeoutMillis = 10000UL;
225 |   unsigned long startMillis = millis();
226 |   while (wifiClient->connected() || wifiClient->available()) {
227 |     if (wifiClient->available()) {
228 |       if ((millis() - startMillis) > timeoutMillis) {
229 |         Serial.printf("HTTP timeout after %ds.\n", (timeoutMillis/1000));
230 |         wifiClient->stop();
231 |         ESP.restart();
232 |       }
233 |       c = wifiClient->read();
234 |       Serial.print(c);
235 |       if (c == '{' || c == '[') {
236 |         isBody = true;
237 |       }
238 |       if (isBody) {
239 |         parser.parse(c);
240 |       }
241 |     }
242 |     executeCallback();
243 |     // give WiFi and TCP/IP libraries a chance to handle pending events
244 |     yield();
245 |   }
246 |   wifiClient->stop();
247 | 
248 |   this->data = nullptr;
249 | }
250 | 
251 | String SpotifyClient::startConfigPortal(const String mDnsName) {
252 |   String oneWayCode = "";
253 | 
254 |   Serial.println("Starting config portal");
255 |   server.on("/", [this]() {
256 |     Serial.println("Serving resource '/'");
257 |     Serial.println("Sending HTTP 302 to Spotify");
258 |     server.sendHeader(
259 |         "Location",
260 |         String("https://accounts.spotify.com/authorize/?client_id=" +
261 |                this->clientId +
262 |                "&response_type=code&redirect_uri=" + this->redirectUri +
263 |                "&scope=user-read-private%20user-read-currently-playing%20user-"
264 |                "read-playback-state%20user-modify-playback-state"),
265 |         true);
266 |     server.send(302, "text/plain", "");
267 |   });
268 | 
269 |   server.on("/callback/", [this, &oneWayCode]() {
270 |     if (!server.hasArg("code")) {
271 |       server.send(500, "text/plain", "BAD ARGS");
272 |       return;
273 |     }
274 | 
275 |     oneWayCode = server.arg("code");
276 |     Serial.printf("Code: %s\n", oneWayCode.c_str());
277 |     String message = "<html><head></head><body>Succesfully authentiated this device with Spotify. Restart your device now</body></html>";
278 |     server.send(200, "text/html", message);
279 |   });
280 | 
281 |   server.begin();
282 | 
283 |   Serial.println("HTTP server started");
284 | 
285 |   if (!MDNS.begin(mDnsName)) {
286 |     Serial.println("Error setting up MDNS responder!");
287 |   }
288 |   Serial.println("MDNS responder started");
289 |   Serial.println("Open browser at http://" + mDnsName + ".local");
290 | 
291 |   while (oneWayCode == "") {
292 |     MDNS.update();
293 |     server.handleClient();
294 |     yield();
295 |   }
296 | 
297 |   Serial.println("Stopping HTTP server");
298 |   server.stop();
299 |   Serial.println("Stopping MDNS responder");
300 |   MDNS.close();
301 |   return oneWayCode;
302 | }
303 | 
304 | void SpotifyClient::whitespace(char c) {
305 |   Serial.println("whitespace");
306 | }
307 | 
308 | void SpotifyClient::startDocument() {
309 |   Serial.println("start document");
310 |   level = 0;
311 | }
312 | 
313 | void SpotifyClient::key(String key) {
314 |   currentKey = String(key);
315 |   rootPath[level] = key;
316 | }
317 | 
318 | String SpotifyClient::getRootPath() {
319 |   String path = "";
320 |   for (uint8_t i = 1; i <= level; i++) {
321 |     String currentLevel = rootPath[i];
322 |     if (currentLevel == "") {
323 |       break;
324 |     }
325 |     if (i > 1) {
326 |       path += ".";
327 |     }
328 |     path += currentLevel;
329 |   }
330 |   return path;
331 | }
332 | 
333 | void SpotifyClient::value(String value) {
334 |   if (isDataCall) {
335 | 
336 |     String rootPath = this->getRootPath();
337 |     // Serial.printf("%s = %s\n", rootPath.c_str(), value.c_str());
338 |     // Serial.printf("%s = %s\n", currentKey.c_str(), value.c_str());
339 |     // progress_ms = 37516 uint32_t progressMs;
340 |     if (currentKey == "progress_ms") {
341 |       data->progressMs = value.toInt();
342 |     }
343 |     // duration_ms = 259120 uint32_t durationMs;
344 |     if (currentKey == "duration_ms") {
345 |       data->durationMs = value.toInt();
346 |     }
347 |     // name = Lost in My MindString name;
348 |     if (currentKey == "name") {
349 |       data->title = value;
350 |     }
351 |     // is_playing = true boolean isPlaying;
352 |     if (currentKey == "is_playing") {
353 |       data->isPlaying = (value == "true" ? true : false);
354 |     }
355 |     if (currentKey == "height") {
356 |       currentImageHeight = value.toInt();
357 |     }
358 |     if (currentKey == "url") {
359 |       Serial.printf("HREF: %s = %s", rootPath.c_str(), value.c_str());
360 | 
361 |       if (rootPath == "item.album.images.url") {
362 |         if (currentImageHeight == 640) {
363 |           data->image640Href = value;
364 |         }
365 |         if (currentImageHeight > 250 && currentImageHeight < 350) {
366 |           data->image300Href = value;
367 |         }
368 |         if (currentImageHeight == 64) {
369 |           data->image64Href = value;
370 |         }
371 |       }
372 |     }
373 |     if (rootPath == "item.album.artists.name") {
374 |       data->artistName = value;
375 |     }
376 | 
377 |   } else {
378 |     Serial.printf("\n%s=%s\n", currentKey.c_str(), value.c_str());
379 |     // "access_token": "XXX" String accessToken;
380 |     if (currentKey == "access_token") {
381 |       auth->accessToken = value;
382 |     }
383 |     // "token_type":"Bearer", String tokenType;
384 |     if (currentKey == "token_type") {
385 |       auth->tokenType = value;
386 |     }
387 |     // "expires_in":3600, uint16_t expiresIn;
388 |     if (currentKey == "expires_in") {
389 |       auth->expiresIn = value.toInt();
390 |     }
391 |     // "refresh_token":"XX", String refreshToken;
392 |     if (currentKey == "refresh_token") {
393 |       auth->refreshToken = value;
394 |     }
395 |     // "scope":"user-modify-playback-state user-read-playback-state user-read-currently-playing user-read-private String scope;
396 |     if (currentKey == "scope") {
397 |       auth->scope = value;
398 |     }
399 |   }
400 | }
401 | 
402 | void SpotifyClient::endArray() {}
403 | 
404 | void SpotifyClient::startObject() {
405 |   // Serial.println("Starting new object: " + currentKey);
406 |   currentParent = currentKey;
407 |   // rootPath[level] = currentKey;
408 |   level++;
409 | 
410 |   // level++;*/
411 | }
412 | 
413 | void SpotifyClient::endObject() {
414 |   // rootPath[level] = "";
415 |   level--;
416 |   currentParent = "";
417 | }
418 | 
419 | void SpotifyClient::endDocument() {}
420 | 
421 | void SpotifyClient::startArray() {}
422 | 
423 | void SpotifyClient::executeCallback() {
424 |   if (drawingCallback != nullptr) {
425 |     (*this->drawingCallback)();
426 |   }
427 | }
428 | 
429 | void SpotifyClient::downloadFile(String url, String filename) {
430 |   Serial.println("Downloading " + url + " and saving as " + filename);
431 | 
432 |   // wait for WiFi connection
433 |   // TODO - decide if there's a different action for first call or subsequent
434 |   // calls boolean isFirstCall = true;
435 |   HTTPClient http;
436 | 
437 |   Serial.print("[HTTP] begin...\n");
438 | 
439 |   // configure server and url
440 |   http.begin(*wifiClient, url);
441 | 
442 |   Serial.print("[HTTP] GET...\n");
443 |   // start connection and send HTTP header
444 |   int httpCode = http.GET();
445 |   if (httpCode > 0) {
446 |     // SPIFFS.remove(filename);
447 |     fs::File f = SPIFFS.open(filename, "w+");
448 |     if (!f) {
449 |       Serial.println("file open failed");
450 |       return;
451 |     }
452 |     // HTTP header has been send and Server response header has been handled
453 |     Serial.printf("[HTTP] GET... code: %d\n", httpCode);
454 | 
455 |     // file found at server
456 |     if (httpCode == HTTP_CODE_OK) {
457 | 
458 |       // get lenght of document (is -1 when Server sends no Content-Length
459 |       // header)
460 |       int total = http.getSize();
461 |       int len = total;
462 |       // progressCallback(filename, 0,total, true);
463 |       // create buffer for read
464 |       uint8_t buff[128] = {0};
465 | 
466 |       // get tcp stream
467 |       WiFiClient *stream = http.getStreamPtr();
468 | 
469 |       // read all data from server
470 |       while (http.connected() && (len > 0 || len == -1)) {
471 |         // get available data size
472 |         size_t size = stream->available();
473 | 
474 |         if (size) {
475 |           // read up to 128 byte
476 |           int c = stream->readBytes(buff, ((size > sizeof(buff)) ? sizeof(buff) : size));
477 | 
478 |           // write it to Serial
479 |           f.write(buff, c);
480 | 
481 |           if (len > 0) {
482 |             len -= c;
483 |           }
484 |           // progressCallback(filename, total - len,total, false);
485 |           // isFirstCall = false;
486 |           executeCallback();
487 |         }
488 |         delay(1);
489 |       }
490 | 
491 |       Serial.println();
492 |       Serial.print("[HTTP] connection closed or file end.\n");
493 |     }
494 |     f.close();
495 |   } else {
496 |     Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
497 |   }
498 | 
499 |   http.end();
500 | }
501 | 


--------------------------------------------------------------------------------
/SpotifyClient.h:
--------------------------------------------------------------------------------
  1 | /**The MIT License (MIT)
  2 |  
  3 |  Copyright (c) 2018 by ThingPulse Ltd., https://thingpulse.com
  4 |  
  5 |  Permission is hereby granted, free of charge, to any person obtaining a copy
  6 |  of this software and associated documentation files (the "Software"), to deal
  7 |  in the Software without restriction, including without limitation the rights
  8 |  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  9 |  copies of the Software, and to permit persons to whom the Software is
 10 |  furnished to do so, subject to the following conditions:
 11 |  
 12 |  The above copyright notice and this permission notice shall be included in all
 13 |  copies or substantial portions of the Software.
 14 |  
 15 |  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 16 |  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 17 |  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 18 |  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 19 |  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 20 |  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 21 |  SOFTWARE.
 22 |  */
 23 | 
 24 | #pragma once
 25 | #include <Arduino.h>
 26 | #include <JsonListener.h>
 27 | #include <JsonStreamingParser.h>
 28 | #include <ESP8266WebServer.h>
 29 | #include <WiFiClientSecure.h>
 30 | #include <FS.h>
 31 | #include <base64.h>
 32 | 
 33 | typedef void (*DrawingCallback)();
 34 | 
 35 | typedef struct SpotifyAuth {
 36 |   // "access_token": "XXX"
 37 |   String accessToken;
 38 |    // "token_type":"Bearer",
 39 |   String tokenType;
 40 |   // "expires_in":3600,
 41 |   uint16_t expiresIn;
 42 |   // "refresh_token":"XX",
 43 |   String refreshToken;
 44 |   // "scope":"user-modify-playback-state user-read-playback-state user-read-currently-playing user-read-private
 45 |   String scope;
 46 | 
 47 | } SpotifyAuth;
 48 | 
 49 | typedef struct SpotifyData {
 50 |   // timestamp = 1527690461156
 51 |   // progress_ms = 37516
 52 |   uint32_t progressMs;
 53 |   // is_playing = true
 54 |   boolean isPlaying;
 55 |   boolean isPlayerActive;
 56 |   // Starting new object: item
 57 |   // Starting new object: album
 58 |   // album_type = album
 59 |   // Starting new object: artists
 60 |   // Starting new object: external_urls
 61 |   // spotify = https://open.spotify.com/artist/0n94vC3S9c3mb2HyNAOcjg
 62 |   // href = https://api.spotify.com/v1/artists/0n94vC3S9c3mb2HyNAOcjg
 63 |   // id = 0n94vC3S9c3mb2HyNAOcjg
 64 |   // name = The Head and the Heart item.album.artists.name
 65 |   String artistName;
 66 |   // type = artist
 67 |   // uri = spotify:artist:0n94vC3S9c3mb2HyNAOcjg
 68 |   // Starting new object: external_urls
 69 |   // spotify = https://open.spotify.com/album/0xWfhCMYmaiCXtLOuyPoLF
 70 |   // href = https://api.spotify.com/v1/albums/0xWfhCMYmaiCXtLOuyPoLF
 71 |   String image640Href;
 72 |   String image300Href;
 73 |   String image64Href;
 74 |   // id = 0xWfhCMYmaiCXtLOuyPoLF
 75 |   // Starting new object: images
 76 |   // height = 639
 77 |   // url = https://i.scdn.co/image/c08c25d478dc3a645c04abc000602201ce1634d8
 78 |   // width = 630
 79 |   // Starting new object: width
 80 |   // height = 300
 81 |   // url = https://i.scdn.co/image/6b0e2580ede853b1173198693301f0df1979b5cf
 82 |   // width = 296
 83 |   // Starting new object: width
 84 |   // height = 64
 85 |   // url = https://i.scdn.co/image/7d20358db1b1502a09a05f860ba9d3641e552f8d
 86 |   // width = 63
 87 |   // name = The Head and the Heart
 88 |   // release_date = 2010
 89 |   // release_date_precision = year
 90 |   // type = album
 91 |   // uri = spotify:album:0xWfhCMYmaiCXtLOuyPoLF
 92 |   // Starting new object: artists
 93 |   // Starting new object: external_urls
 94 |   // spotify = https://open.spotify.com/artist/0n94vC3S9c3mb2HyNAOcjg
 95 |   // href = https://api.spotify.com/v1/artists/0n94vC3S9c3mb2HyNAOcjg
 96 |   // id = 0n94vC3S9c3mb2HyNAOcjg
 97 |   // name = The Head and the Heart
 98 |   // type = artist
 99 |   // uri = spotify:artist:0n94vC3S9c3mb2HyNAOcjg
100 |   // disc_number = 1
101 |   // duration_ms = 259120
102 |   uint32_t durationMs;
103 |   // explicit = false
104 |   // Starting new object: external_ids
105 |   // isrc = USSUB1191507
106 |   // Starting new object: external_urls
107 |   // spotify = https://open.spotify.com/track/3gvAGvbMCRvVDDp8ZaIPV5
108 |   // href = https://api.spotify.com/v1/tracks/3gvAGvbMCRvVDDp8ZaIPV5
109 |   // id = 3gvAGvbMCRvVDDp8ZaIPV5
110 |   // is_local = false
111 |   // name = Lost in My Mind
112 |   String title;
113 |   // popularity = 68
114 |   // preview_url = null
115 |   // track_number = 7
116 |   // type = track
117 |   // uri = spotify:track:3gvAGvbMCRvVDDp8ZaIPV5
118 |   // Starting new object: context
119 |   // Starting new object: external_urls
120 |   // spotify = https://open.spotify.com/user/spotify/playlist/37i9dQZF1DWUNIrSzKgQbP
121 |   // href = https://api.spotify.com/v1/users/spotify/playlists/37i9dQZF1DWUNIrSzKgQbP
122 |   // type = playlist
123 |   // uri = spotify:user:spotify:playlist:37i9dQZF1DWUNIrSzKgQbP
124 |   
125 | 
126 | } SpotifyData;
127 | 
128 | class SpotifyClient: public JsonListener {
129 |   private:
130 | 
131 |     String currentKey;
132 |     String currentParent;
133 |     SpotifyData *data;
134 |     SpotifyAuth *auth;
135 |     bool isDataCall;
136 |     String rootPath[10];
137 |     uint8_t level = 0;
138 |     uint16_t currentImageHeight;
139 |     DrawingCallback *drawingCallback;
140 |     String clientId;
141 |     String clientSecret;
142 |     String redirectUri;
143 |     WiFiClientSecure *wifiClient;
144 |     ESP8266WebServer server;
145 |   
146 |     String getRootPath();
147 |     void executeCallback();
148 | 
149 |   public:
150 |     
151 |     SpotifyClient(String clientId, String clientSecret, String redirectUri, WiFiClientSecure *wifiClient);
152 |     
153 |     uint16_t update(SpotifyData *data, SpotifyAuth *auth);
154 | 
155 |     uint16_t playerCommand(SpotifyAuth *auth, String method, String command);
156 | 
157 |     void getToken(SpotifyAuth *auth, String grantType, String code);
158 | 
159 |     void downloadFile(String url, String filename);
160 | 
161 |     void setDrawingCallback(DrawingCallback *drawingCallback) {
162 |       this->drawingCallback = drawingCallback;
163 |     }
164 | 
165 |     String startConfigPortal(const String mDnsName);
166 | 
167 |     virtual void whitespace(char c);
168 | 
169 |     virtual void startDocument();
170 | 
171 |     virtual void key(String key);
172 | 
173 |     virtual void value(String value);
174 | 
175 |     virtual void endArray();
176 | 
177 |     virtual void endObject();
178 | 
179 |     virtual void endDocument();
180 | 
181 |     virtual void startArray();
182 | 
183 |     virtual void startObject();
184 | 
185 | };
186 | 


--------------------------------------------------------------------------------
/TouchControllerWS.cpp:
--------------------------------------------------------------------------------
  1 | /**The MIT License (MIT)
  2 |  
  3 |  Copyright (c) 2018 by ThingPulse Ltd., https://thingpulse.com
  4 |  
  5 |  Permission is hereby granted, free of charge, to any person obtaining a copy
  6 |  of this software and associated documentation files (the "Software"), to deal
  7 |  in the Software without restriction, including without limitation the rights
  8 |  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  9 |  copies of the Software, and to permit persons to whom the Software is
 10 |  furnished to do so, subject to the following conditions:
 11 |  
 12 |  The above copyright notice and this permission notice shall be included in all
 13 |  copies or substantial portions of the Software.
 14 |  
 15 |  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 16 |  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 17 |  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 18 |  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 19 |  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 20 |  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 21 |  SOFTWARE.
 22 |  */
 23 | 
 24 | #include "TouchControllerWS.h"
 25 | 
 26 | TouchControllerWS::TouchControllerWS(XPT2046_Touchscreen *touchScreen) {
 27 |   this->touchScreen = touchScreen;
 28 | }
 29 |   
 30 | bool TouchControllerWS::loadCalibration() {
 31 |   // always use this to "mount" the filesystem
 32 |   bool result = SPIFFS.begin();
 33 |   Serial.println("SPIFFS opened: " + result);
 34 | 
 35 |   // this opens the file "f.txt" in read-mode
 36 |   File f = SPIFFS.open("/calibration.txt", "r");
 37 | 
 38 |   if (!f) {
 39 |     return false;
 40 |   } else {
 41 | 
 42 |       //Lets read line by line from the file
 43 |       String dxStr = f.readStringUntil('\n');
 44 |       String dyStr = f.readStringUntil('\n');
 45 |       String axStr = f.readStringUntil('\n');
 46 |       String ayStr = f.readStringUntil('\n');
 47 | 
 48 |       dx = dxStr.toFloat();
 49 |       dy = dyStr.toFloat();
 50 |       ax = axStr.toInt();
 51 |       ay = ayStr.toInt();
 52 | 
 53 |   }
 54 |   f.close();
 55 |   return true;
 56 | }
 57 | 
 58 | bool TouchControllerWS::saveCalibration() {
 59 |   bool result = SPIFFS.begin();
 60 |   if (result) {
 61 | 	  Serial.println("SPIFFS started successfully");
 62 | 	  // open the file in write mode
 63 | 	  File f = SPIFFS.open("/calibration.txt", "w");
 64 | 	  if (!f) {
 65 | 		  Serial.println("file creation failed");
 66 | 	  }
 67 | 	  // now write two lines in key/value style with  end-of-line characters
 68 | 	  f.println(dx);
 69 | 	  f.println(dy);
 70 | 	  f.println(ax);
 71 | 	  f.println(ay);
 72 | 
 73 | 	  f.close();
 74 |   }
 75 |   else {
 76 | 	  Serial.println("SPIFFS failed to start!");
 77 |   }
 78 |   return result;
 79 | }
 80 | 
 81 | void TouchControllerWS::startCalibration(CalibrationCallback *calibrationCallback) {
 82 |   state = 0;
 83 |   this->calibrationCallback = calibrationCallback;
 84 |   (*calibrationCallback)(10, 10);
 85 | 
 86 | }
 87 | 
 88 | void TouchControllerWS::continueCalibration() {
 89 |     TS_Point p = touchScreen->getPoint();
 90 | 
 91 |     if (state == 0) {
 92 |       
 93 |       if (touchScreen->touched()) {
 94 |         p1 = p;
 95 |         state++;
 96 |         (*calibrationCallback)(230, 310);
 97 |         lastStateChange = millis();
 98 |       }
 99 | 
100 |     } else if (state == 1) {
101 |       if (touchScreen->touched() && (millis() - lastStateChange > 1000)) {
102 | 
103 |         p2 = p;
104 |         state++;
105 |         lastStateChange = millis();
106 |         dx = 240.0 / abs(p1.y - p2.y);
107 |         dy = 320.0 / abs(p1.x - p2.x);
108 |         ax = p1.y < p2.y ? p1.y : p2.y;
109 |         ay = p1.x < p2.x ? p1.x : p2.x;
110 |         Serial.printf("dx: %f, dy: %f, ax: %f, ay: %f\n", dx, dy, ax, ay);
111 |       }
112 | 
113 |     }
114 | }
115 | bool TouchControllerWS::isCalibrationFinished() {
116 |   return state == 2;
117 | }
118 | 
119 | bool TouchControllerWS::isTouched() {
120 | 	bool result;
121 | 	result = touchScreen->touched();
122 | 	return result;
123 | }
124 | 
125 | bool TouchControllerWS::isTouched(int16_t debounceMillis) {
126 |   if (touchScreen->touched() && (long)millis() - lastTouched > debounceMillis) {
127 |     lastTouched = millis();
128 |     return true;
129 |   }
130 |   return false;
131 | }
132 | TS_Point TouchControllerWS::getPoint() {
133 |     TS_Point p = touchScreen->getPoint();
134 |     int x = 240 - (p.y - ax) * dx;
135 |     int y = (p.x - ay) * dy;
136 |     p.x = x;
137 |     p.y = y;
138 |     return p;
139 | }
140 | 


--------------------------------------------------------------------------------
/TouchControllerWS.h:
--------------------------------------------------------------------------------
 1 | /**The MIT License (MIT)
 2 |  
 3 |  Copyright (c) 2018 by ThingPulse Ltd., https://thingpulse.com
 4 |  
 5 |  Permission is hereby granted, free of charge, to any person obtaining a copy
 6 |  of this software and associated documentation files (the "Software"), to deal
 7 |  in the Software without restriction, including without limitation the rights
 8 |  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 |  copies of the Software, and to permit persons to whom the Software is
10 |  furnished to do so, subject to the following conditions:
11 |  
12 |  The above copyright notice and this permission notice shall be included in all
13 |  copies or substantial portions of the Software.
14 |  
15 |  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 |  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 |  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 |  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 |  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 |  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 |  SOFTWARE.
22 |  */
23 | 
24 | #include <FS.h>
25 | #include <XPT2046_Touchscreen.h>
26 | 
27 | #ifndef _TOUCH_CONTROLLERWSH_
28 | #define _TOUCH_CONTROLLERWSH_
29 | 
30 | typedef void (*CalibrationCallback)(int16_t x, int16_t y);
31 | 
32 | class TouchControllerWS {
33 |   public:
34 |     TouchControllerWS(XPT2046_Touchscreen *touchScreen);
35 |     bool loadCalibration();
36 |     bool saveCalibration();
37 |     void startCalibration(CalibrationCallback *callback);
38 |     void continueCalibration();
39 |     bool isCalibrationFinished();
40 |     bool isTouched();
41 |     bool isTouched(int16_t debounceMillis);
42 |     TS_Point getPoint();
43 | 
44 |   private:
45 |     XPT2046_Touchscreen *touchScreen;
46 |     float dx = 0.0;
47 |     float dy = 0.0;
48 |     int ax = 0;
49 |     int ay = 0;
50 |     int state = 0;
51 |     long lastStateChange = 0;
52 |     long lastTouched = 0;
53 |     CalibrationCallback *calibrationCallback;
54 |     TS_Point p1, p2;
55 | 
56 | };
57 | 
58 | #endif
59 | 


--------------------------------------------------------------------------------
/esp8266-spotify-remote.ino:
--------------------------------------------------------------------------------
  1 | /**The MIT License (MIT)
  2 |  
  3 |  Copyright (c) 2018 by ThingPulse Ltd., https://thingpulse.com
  4 |  
  5 |  Permission is hereby granted, free of charge, to any person obtaining a copy
  6 |  of this software and associated documentation files (the "Software"), to deal
  7 |  in the Software without restriction, including without limitation the rights
  8 |  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  9 |  copies of the Software, and to permit persons to whom the Software is
 10 |  furnished to do so, subject to the following conditions:
 11 |  
 12 |  The above copyright notice and this permission notice shall be included in all
 13 |  copies or substantial portions of the Software.
 14 |  
 15 |  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 16 |  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 17 |  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 18 |  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 19 |  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 20 |  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 21 |  SOFTWARE.
 22 |  */
 23 | 
 24 | #include <ESP8266WiFi.h>
 25 | #include <WiFiClientSecure.h>
 26 | #include <MiniGrafx.h>
 27 | #include <ILI9341_SPI.h>
 28 | #include <FS.h>
 29 | #include <JPEGDecoder.h>
 30 | 
 31 | #include "SpotifyClient.h"
 32 | #include "settings.h"
 33 | #include "TouchControllerWS.h"
 34 | #include "images.h"
 35 | 
 36 |  // Statements like:
 37 |  // #pragma message(Reminder "Fix this problem!")
 38 |  // Which will cause messages like:
 39 |  // C:\Source\Project\main.cpp(47): Reminder: Fix this problem!
 40 |  // to show up during compiles. Note that you can NOT use the
 41 |  // words "error" or "warning" in your reminders, since it will
 42 |  // make the IDE think it should abort execution. You can double
 43 |  // click on these messages and jump to the line in question.
 44 |  //
 45 |  // see https://stackoverflow.com/questions/5966594/how-can-i-use-pragma-message-so-that-the-message-points-to-the-filelineno
 46 |  //
 47 | #define Stringize( L )     #L 
 48 | #define MakeString( M, L ) M(L)
 49 | #define $Line MakeString( Stringize, __LINE__ )
 50 | #define Reminder __FILE__ "(" $Line ") : Reminder: "
 51 | #ifdef LOAD_SD_LIBRARY
 52 | #pragma message(Reminder "Comment out the line with LOAD_SD_LIBRARY /JPEGDecoder/src/User_config.h !")
 53 | #endif
 54 | 
 55 | int BUFFER_WIDTH = 240;
 56 | int BUFFER_HEIGHT = 160;
 57 | // Limited to 4 colors due to memory constraints
 58 | int BITS_PER_PIXEL = 2; // 2^2 =  4 colors
 59 | 
 60 | XPT2046_Touchscreen ts(TOUCH_CS, TOUCH_IRQ);
 61 | TouchControllerWS touchController(&ts);
 62 | 
 63 | ILI9341_SPI tft = ILI9341_SPI(TFT_CS, TFT_DC);
 64 | MiniGrafx gfx = MiniGrafx(&tft, BITS_PER_PIXEL, palette, BUFFER_WIDTH, BUFFER_HEIGHT);
 65 | 
 66 | WiFiClientSecure wifiClient;
 67 | SpotifyClient client(clientId, clientSecret, redirectUri, &wifiClient);
 68 | SpotifyData data;
 69 | SpotifyAuth auth;
 70 | 
 71 | String currentImageUrl = "";
 72 | uint32_t lastDrawingUpdate = 0;
 73 | uint16_t counter = 0;
 74 | long lastUpdate = 0;
 75 | TS_Point lastTouchPoint;
 76 | uint32_t lastTouchMillis = 0;
 77 | boolean isDownloadingCover = false;
 78 | 
 79 | void setClock();
 80 | void drawJPEGFromSpiffs(String filename, MiniGrafx *gfx, int xpos, int ypos, DrawingCallback *drawingCallback);
 81 | void calibrationCallback(int16_t x, int16_t y);
 82 | CalibrationCallback calibration = &calibrationCallback;
 83 | String formatTime(uint32_t time);
 84 | void saveRefreshToken(String refreshToken);
 85 | String loadRefreshToken();
 86 | void displayLogo();
 87 | 
 88 | void drawSongInfo();
 89 | DrawingCallback drawSongInfoCallback = &drawSongInfo;
 90 | 
 91 | void printFreeHeap(String msg) {
 92 |   #ifdef MEMORY_DEBUG
 93 |   Serial.println("*** Memory stats " + msg + " ***");
 94 |   Serial.printf("\tFree heap: %d\n", ESP.getFreeHeap());
 95 |   Serial.printf("\tMax free block size: %d\n", ESP.getMaxFreeBlockSize());
 96 |   Serial.printf("\tHeap fragmentation: %d%\n\n", ESP.getHeapFragmentation());
 97 |   #endif
 98 | }
 99 | 
100 | void setup() {
101 |   Serial.begin(115200);
102 |   Serial.println("");
103 |   printFreeHeap("right after setup()");
104 |   wifiClient.setBufferSizes(512, 512);
105 | 
106 |   Serial.println();
107 |   Serial.print("connecting to ");
108 |   Serial.println(ssid);
109 |   WiFi.mode(WIFI_STA);
110 |   WiFi.begin(ssid, password);
111 |   while (WiFi.status() != WL_CONNECTED) {
112 |     delay(500);
113 |     Serial.print(".");
114 |   }
115 |   Serial.println("");
116 |   Serial.print("WiFi connected at IP address: ");
117 |   Serial.println(WiFi.localIP());
118 | 
119 |   printFreeHeap("after WiFi connection");
120 | 
121 |   setClock();
122 | 
123 |   pinMode(TFT_LED, OUTPUT);
124 |   digitalWrite(TFT_LED, HIGH);    // HIGH to Turn on;
125 |   gfx.init();
126 |   gfx.fillBuffer(MINI_BLACK);
127 |   gfx.setColor(MINI_YELLOW);
128 |   gfx.setFont(ArialMT_Plain_16);
129 |   gfx.setTextAlignment(TEXT_ALIGN_CENTER);
130 |   displayLogo();
131 |   gfx.fillBuffer(MINI_BLACK);
132 |   gfx.commit(0, 160);
133 |   
134 |   printFreeHeap("after 1st GFX commit");
135 |   
136 |   boolean mounted = SPIFFS.begin();
137 |   if (!mounted) {
138 |     Serial.println("FS not formatted. Doing that now");
139 |     gfx.drawString(120, 10, "Formatting file system.\nPlease stand by...");
140 |     gfx.commit(0, 0);
141 |     SPIFFS.format();
142 |     Serial.println("FS formatted...");
143 |     SPIFFS.begin();
144 |   }
145 | 
146 |   printFreeHeap("after SPIFFS mounted");
147 | 
148 |   // init the touch screen
149 |   ts.begin();
150 | 
151 |   boolean isCalibrationAvailable = touchController.loadCalibration();
152 |   if (!isCalibrationAvailable) {
153 |     Serial.println("Calibration not available");
154 |     touchController.startCalibration(&calibration);
155 |     while (!touchController.isCalibrationFinished()) {
156 |       touchController.continueCalibration();
157 |       yield();
158 |     }
159 |     touchController.saveCalibration();
160 |   }
161 | 
162 |   printFreeHeap("after touch screen initialized");
163 | 
164 |   String code = "";
165 |   String grantType = "";
166 |   String refreshToken = loadRefreshToken();
167 |   if (refreshToken == "") {
168 |     Serial.println("No refresh token found. Requesting through browser");
169 |     gfx.fillBuffer(MINI_BLACK);
170 |     gfx.setColor(MINI_YELLOW);
171 |     gfx.setTextAlignment(TEXT_ALIGN_CENTER);
172 |     gfx.setFont(ArialMT_Plain_16);
173 |   
174 |     gfx.drawString(120, 10, "Authentication required.\nOpen browser at\nhttp://" + espotifierNodeName + ".local");
175 |     gfx.commit(0, 0);
176 | 
177 |     code = client.startConfigPortal(espotifierNodeName);
178 |     grantType = "authorization_code";
179 |   } else {
180 |     Serial.println("Using refresh token found on the FS");
181 |     code = refreshToken;
182 |     grantType = "refresh_token";
183 |   }
184 |   client.getToken(&auth, grantType, code);
185 |   Serial.printf("Refresh token: %s\nAccess Token: %s\n", auth.refreshToken.c_str(), auth.accessToken.c_str());
186 |   if (auth.refreshToken != "") {
187 |     saveRefreshToken(auth.refreshToken);
188 |   }
189 |   client.setDrawingCallback(&drawSongInfoCallback);
190 | }
191 | 
192 | void loop() {
193 |   if (millis() - lastUpdate > 1000) {
194 |     uint16_t responseCode = client.update(&data, &auth);
195 |     Serial.printf("HREF: %s\n", data.image300Href.c_str());
196 |     lastUpdate = millis();
197 |     Serial.printf("--------Response Code: %d\n", responseCode);
198 |     Serial.printf("--------Free mem: %d\n", ESP.getFreeHeap());
199 |     if (responseCode == 401) {
200 |       client.getToken(&auth, "refresh_token", auth.refreshToken);
201 |       if (auth.refreshToken != "") {
202 |         saveRefreshToken(auth.refreshToken);
203 |       }
204 |     }
205 |     if (responseCode == 200) {
206 |       String selectedImageHref = data.image300Href;
207 |       selectedImageHref.replace("https", "http");
208 | 
209 |       if (selectedImageHref != currentImageUrl) {
210 | 
211 |         Serial.println("New Image. Downloading it");
212 | 
213 |         isDownloadingCover = true;
214 |         client.downloadFile(selectedImageHref, "/cover.jpg");
215 |         isDownloadingCover = false;
216 |         currentImageUrl = selectedImageHref;
217 |         drawJPEGFromSpiffs("/cover.jpg", 45, 0);
218 |         gfx.setColor(ILI9341_YELLOW);
219 |       }
220 |     }
221 |     if (responseCode == 400) {
222 |       gfx.fillBuffer(MINI_BLACK);
223 |       gfx.setColor(MINI_WHITE);
224 |       gfx.setTextAlignment(TEXT_ALIGN_CENTER);
225 |       gfx.drawString(120, 20, "Please define\nclientId and clientSecret");
226 |       gfx.commit(0, 160);
227 |     }
228 |   }
229 |   drawSongInfo();
230 | 
231 |   if (touchController.isTouched(500) && millis() - lastTouchMillis > 1000) {
232 |     TS_Point p = touchController.getPoint();
233 |     lastTouchPoint = p;
234 |     lastTouchMillis = millis();
235 |     String command = "";
236 |     String method = "";
237 |     if (p.y > 160) {
238 |       if (p.x < 80) {
239 |         method = "POST";
240 |         command = "previous";
241 |       } else if (p.x >= 80 && p.x <= 160) {
242 |         method = "PUT";
243 |         command = "play";
244 |         if (data.isPlaying) {
245 |           command = "pause";
246 |         }
247 |         data.isPlaying = !data.isPlaying;
248 |       } else if (p.x > 160) {
249 |         method = "POST";
250 |         command = "next";
251 |       }
252 |       uint16_t responseCode = client.playerCommand(&auth, method, command);
253 |       Serial.print("playerCommand response =");
254 |       Serial.println(responseCode);
255 |     }
256 |   }
257 | }
258 | 
259 | // Set time via NTP, as required for x.509 validation
260 | void setClock() {
261 |   configTime(TIMEZONE, "pool.ntp.org");
262 |   
263 |   Serial.print("Waiting for NTP time sync: ");
264 |   time_t now = time(nullptr);
265 |   while (now < 8 * 3600 * 2) {
266 |     delay(500);
267 |     Serial.print(".");
268 |     now = time(nullptr);
269 |   }
270 |   Serial.println("");
271 |   struct tm timeinfo;
272 |   gmtime_r(&now, &timeinfo);
273 |   Serial.print("Current time UTC: ");
274 |   Serial.print(asctime(&timeinfo));
275 | }
276 | 
277 | void drawSongInfo() {
278 |   if (millis() - lastDrawingUpdate < 333) {
279 |     return;
280 |   }
281 |   lastDrawingUpdate = millis();
282 |   long timeSinceUpdate = 0;
283 |   if (data.isPlaying) {
284 |     timeSinceUpdate = millis() - lastUpdate;
285 |   }
286 |   drawProgress(_min(data.progressMs + timeSinceUpdate, data.durationMs), data.durationMs, data.title, data.artistName, data.isPlaying, data.isPlayerActive);
287 | }
288 | 
289 | void drawProgress(uint64_t progressMs, uint64_t durationMs, String songTitle, String artistName, boolean isPlaying, boolean isPlayerActive) {
290 |   counter++;
291 | 
292 |   if (isDownloadingCover) {
293 |     gfx.fillBuffer(MINI_BLACK);
294 |     gfx.setColor(MINI_WHITE);
295 |     gfx.drawCircle(100, 80, 5);
296 |     gfx.drawCircle(120, 80, 5);
297 |     gfx.drawCircle(140, 80, 5);
298 |     gfx.fillCircle(100 + 20 * (counter % 3), 80, 5);
299 |     gfx.commit(0, 0);
300 |   }
301 | 
302 |   gfx.fillBuffer(MINI_BLACK);
303 |   if (isPlayerActive) {
304 |     gfx.setTextAlignment(TEXT_ALIGN_LEFT);
305 | 
306 |     uint8_t percentage = 100.0 * progressMs / durationMs;
307 |     gfx.setColor(MINI_WHITE);
308 |     gfx.setTextAlignment(TEXT_ALIGN_LEFT);
309 |     gfx.drawString(10, 70, formatTime(progressMs));
310 |     gfx.setTextAlignment(TEXT_ALIGN_RIGHT);
311 |     gfx.drawString(230, 70, formatTime(data.durationMs));
312 |     gfx.setColor(MINI_WHITE);
313 |     gfx.setColor(MINI_GRAY);
314 |     uint16_t progressX = 10 + 220 * percentage / 100;
315 |     uint16_t progressY = 65;
316 |     gfx.drawLine(progressX, progressY, 230, progressY);
317 |     gfx.setColor(MINI_WHITE);
318 |     gfx.drawLine(10, progressY, progressX, progressY);
319 |     gfx.fillCircle(progressX, progressY, 5);
320 | 
321 |     gfx.setTextAlignment(TEXT_ALIGN_LEFT);
322 |     String animatedTitle = songTitle;
323 |     uint8_t maxChar = 30;
324 |     uint8_t excessChars = songTitle.length() - maxChar;
325 |     uint8_t currentPos = counter % excessChars;
326 |     if (songTitle.length() > maxChar) {
327 |       animatedTitle = songTitle.substring(currentPos, currentPos + maxChar);
328 |     }
329 |     gfx.setTextAlignment(TEXT_ALIGN_CENTER);
330 |     gfx.drawString(120, 10, animatedTitle);
331 |     gfx.setColor(MINI_GRAY);
332 |     gfx.drawString(120, 30, artistName);
333 |     gfx.setColor(MINI_YELLOW);
334 |     gfx.drawPalettedBitmapFromPgm(88, 90, isPlaying ? miniPause : miniPlay);
335 | 
336 |     gfx.drawPalettedBitmapFromPgm(30, 90, miniPrevious);
337 |     gfx.drawPalettedBitmapFromPgm(190, 90, miniNext);
338 |     if (millis() - lastTouchMillis < SHOW_TOUCH_POINT_MILLIS) {
339 |       gfx.setColor(MINI_YELLOW);
340 |       gfx.fillCircle(lastTouchPoint.x, lastTouchPoint.y - 160, 5);
341 |     }
342 |     gfx.commit(0, 160);
343 |   } else {
344 |     displayLogo();
345 |   }
346 | }
347 | 
348 | void displayLogo() {
349 |   gfx.setTextAlignment(TEXT_ALIGN_CENTER);
350 |   gfx.setFont(ArialMT_Plain_16);
351 |   gfx.setColor(MINI_YELLOW);
352 |   gfx.drawPalettedBitmapFromPgm(20, 20, ThingPulseLogo);
353 |   gfx.drawString(120, 110, "ESPotify-Remote");
354 |   gfx.commit(0, 0);
355 | }
356 | 
357 | void calibrationCallback(int16_t x, int16_t y) {
358 |   gfx.fillBuffer(MINI_BLACK);
359 | 
360 |   gfx.drawString(120, 10, "Please calibrate\ntouch screen by\ntouch point");
361 |   gfx.setColor(MINI_WHITE);
362 |   if (y < BUFFER_HEIGHT) {
363 |     gfx.fillCircle(x, y, 10);
364 |     gfx.commit(0, 0);
365 |     gfx.fillBuffer(MINI_BLACK);
366 |     gfx.commit(0, BUFFER_HEIGHT);
367 |   } else {
368 |     gfx.fillCircle(x, y - BUFFER_HEIGHT, 10);
369 |     gfx.commit(0, BUFFER_HEIGHT);
370 |     gfx.fillBuffer(MINI_BLACK);
371 |     gfx.commit(0, 0);
372 |   }
373 | }
374 | 
375 | String formatTime(uint32_t time) {
376 |   char time_str[10];
377 |   uint8_t minutes = time / (1000 * 60);
378 |   uint8_t seconds = (time / 1000) % 60;
379 |   sprintf(time_str, "%2d:%02d", minutes, seconds);
380 |   return String(time_str);
381 | }
382 | 
383 | void saveRefreshToken(String refreshToken) {
384 |   File f = SPIFFS.open("/refreshToken.txt", "w+");
385 |   if (!f) {
386 |     Serial.println("Failed to open config file");
387 |     return;
388 |   }
389 |   f.println(refreshToken);
390 |   f.close();
391 | }
392 | 
393 | String loadRefreshToken() {
394 |   Serial.println("Loading config");
395 |   File f = SPIFFS.open("/refreshToken.txt", "r");
396 |   if (!f) {
397 |     Serial.println("Failed to open config file");
398 |     return "";
399 |   }
400 |   while (f.available()) {
401 |     // Lets read line by line from the file
402 |     String token = f.readStringUntil('\r');
403 |     Serial.printf("Refresh Token: %s\n", token.c_str());
404 |     f.close();
405 |     return token;
406 |   }
407 |   return "";
408 | }
409 | 
410 | void drawJPEGFromSpiffs(String filename, int xpos, int ypos) {
411 |   char buffer[filename.length() + 1];
412 |   filename.toCharArray(buffer, filename.length() + 1);
413 | 
414 |   JpegDec.decodeFile(buffer);
415 |   uint8_t zoomFactor = 2;
416 |   uint16_t *pImg;
417 |   uint16_t mcu_w = JpegDec.MCUWidth;
418 |   uint16_t mcu_h = JpegDec.MCUHeight;
419 |   Serial.printf("MCU W/H: %d, %d\n", mcu_w, mcu_h);
420 |   // uint32_t mcu_pixels = mcu_w * mcu_h; // total pixels
421 |   // TODO immplmenet something to track drawtime performance
422 |   // uint32_t drawTime = millis();
423 | 
424 |   while (JpegDec.read()) {
425 |     pImg = JpegDec.pImage;
426 |     int mcu_x = (JpegDec.MCUx * mcu_w) / zoomFactor + xpos;
427 |     int mcu_y = (JpegDec.MCUy * mcu_h) / zoomFactor + ypos;
428 | 
429 |     tft.setAddrWindow(mcu_x, mcu_y, mcu_x + (mcu_w / zoomFactor) - 1, mcu_y + (mcu_h / zoomFactor) - 1);
430 | 
431 |     for (uint8_t y = 0; y < mcu_h; y++) {
432 |       for (uint8_t x = 0; x < mcu_w; x++) {
433 |         if (x % zoomFactor == 0 && y % zoomFactor == 0) {
434 |           tft.pushColor(*pImg);
435 |         }
436 |         *pImg++;
437 |       }
438 |     }
439 |     drawSongInfo();
440 |   }
441 | }
442 | 


--------------------------------------------------------------------------------
/esp8266-spotify-remote.sln:
--------------------------------------------------------------------------------
 1 | 
 2 | Microsoft Visual Studio Solution File, Format Version 12.00
 3 | # Visual Studio 15
 4 | VisualStudioVersion = 15.0.27428.2043
 5 | MinimumVisualStudioVersion = 10.0.40219.1
 6 | Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "esp8266-spotify-remote", "esp8266-spotify-remote.vcxproj", "{C5F80730-F44F-4478-BDAE-6634EFC2CA88}"
 7 | EndProject
 8 | Global
 9 | 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
10 | 		Debug|x86 = Debug|x86
11 | 		Release|x86 = Release|x86
12 | 	EndGlobalSection
13 | 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
14 | 		{C5F80730-F44F-4478-BDAE-6634EFC2CA88}.Debug|x86.ActiveCfg = Debug|Win32
15 | 		{C5F80730-F44F-4478-BDAE-6634EFC2CA88}.Debug|x86.Build.0 = Debug|Win32
16 | 		{C5F80730-F44F-4478-BDAE-6634EFC2CA88}.Release|x86.ActiveCfg = Release|Win32
17 | 		{C5F80730-F44F-4478-BDAE-6634EFC2CA88}.Release|x86.Build.0 = Release|Win32
18 | 	EndGlobalSection
19 | 	GlobalSection(SolutionProperties) = preSolution
20 | 		HideSolutionNode = FALSE
21 | 	EndGlobalSection
22 | 	GlobalSection(ExtensibilityGlobals) = postSolution
23 | 		SolutionGuid = {F2D4E34A-4599-4719-AAD6-8A664670EBB8}
24 | 	EndGlobalSection
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  1 | /**The MIT License (MIT)
  2 |  
  3 |  Copyright (c) 2018 by ThingPulse Ltd., https://thingpulse.com
  4 |  
  5 |  Permission is hereby granted, free of charge, to any person obtaining a copy
  6 |  of this software and associated documentation files (the "Software"), to deal
  7 |  in the Software without restriction, including without limitation the rights
  8 |  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  9 |  copies of the Software, and to permit persons to whom the Software is
 10 |  furnished to do so, subject to the following conditions:
 11 |  
 12 |  The above copyright notice and this permission notice shall be included in all
 13 |  copies or substantial portions of the Software.
 14 |  
 15 |  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 16 |  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 17 |  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 18 |  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 19 |  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 20 |  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 21 |  SOFTWARE.
 22 |  */
 23 | 
 24 | const char ThingPulseLogo[] PROGMEM = {
 25 |   0x01, // Version: 1
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 28 |   0x00, 0x50, // Height: 80
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164 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
165 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
166 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
167 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
168 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
169 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
170 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
171 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
172 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
173 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
174 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
175 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
176 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
177 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
178 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
179 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
180 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
181 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
182 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
183 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
184 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
185 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
186 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
187 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
188 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
189 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
190 |   0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0x0F, 0xC0, 0x00, 0x00, 0x3F, 0xC0, 0x3F, 0xC0, 0xFF, 0x00, 0x00, 0x3F, 0xC0, 0x00, 0xFF, 
191 |   0xFF, 0xFF, 0xFC, 0x0A, 0xAA, 0xAA, 0xAA, 0xA8, 0x00, 0x0A, 0xA0, 0x00, 0x00, 0x2A, 0x80, 0x2A, 0x80, 0x00, 0x00, 0x00, 
192 |   0x00, 0xAA, 0xAA, 0xAA, 0xA8, 0x02, 0xAA, 0xAA, 0xAA, 0xAA, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0x0F, 0xC0, 0x00, 0x00, 0x3F, 
193 |   0xC0, 0x3F, 0xC0, 0xFF, 0xC0, 0x00, 0x3F, 0xC0, 0x03, 0xFF, 0xFF, 0xFF, 0xFC, 0x0A, 0xAA, 0xAA, 0xAA, 0xAA, 0x80, 0x0A, 
194 |   0xA0, 0x00, 0x00, 0x2A, 0x80, 0x2A, 0x80, 0x00, 0x00, 0x00, 0x0A, 0xAA, 0xAA, 0xAA, 0xA8, 0x02, 0xAA, 0xAA, 0xAA, 0xAA, 
195 |   0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0x0F, 0xC0, 0x00, 0x00, 0x3F, 0xC0, 0x3F, 0xC0, 0xFF, 0xF0, 0x00, 0x3F, 0xC0, 0x0F, 0xFF, 
196 |   0xFF, 0xFF, 0xFC, 0x0A, 0xAA, 0xAA, 0xAA, 0xAA, 0x80, 0x0A, 0xA0, 0x00, 0x00, 0x2A, 0x80, 0x2A, 0x80, 0x00, 0x00, 0x00, 
197 |   0x2A, 0xAA, 0xAA, 0xAA, 0xA8, 0x02, 0xAA, 0xAA, 0xAA, 0xAA, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0x0F, 0xC0, 0x00, 0x00, 0x3F, 
198 |   0xC0, 0x3F, 0xC0, 0xFF, 0xFC, 0x00, 0x3F, 0xC0, 0x3F, 0xFF, 0xFF, 0xFF, 0xFC, 0x0A, 0xAA, 0xAA, 0xAA, 0xAA, 0xA0, 0x0A, 
199 |   0xA0, 0x00, 0x00, 0x2A, 0x80, 0x2A, 0x80, 0x00, 0x00, 0x00, 0x2A, 0xAA, 0xAA, 0xAA, 0xA8, 0x02, 0xAA, 0xAA, 0xAA, 0xAA, 
200 |   0x00, 0x03, 0xFC, 0x00, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x3F, 0xC0, 0x3F, 0xC0, 0xFF, 0xFF, 0x00, 0x3F, 0xC0, 0x3F, 0xC0, 
201 |   0x00, 0x00, 0x00, 0x0A, 0xA0, 0x00, 0x00, 0x0A, 0xA0, 0x0A, 0xA0, 0x00, 0x00, 0x2A, 0x80, 0x2A, 0x80, 0x00, 0x00, 0x00, 
202 |   0x2A, 0x80, 0x00, 0x00, 0x00, 0x02, 0xA8, 0x00, 0x00, 0x00, 0x00, 0x03, 0xFC, 0x00, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x3F, 
203 |   0xC0, 0x3F, 0xC0, 0xFF, 0xFF, 0xC0, 0x3F, 0xC0, 0x3F, 0xC0, 0x00, 0x00, 0x00, 0x0A, 0xA0, 0x00, 0x00, 0x0A, 0xA0, 0x0A, 
204 |   0xA0, 0x00, 0x00, 0x2A, 0x80, 0x2A, 0x80, 0x00, 0x00, 0x00, 0x2A, 0x00, 0x00, 0x00, 0x00, 0x02, 0xA8, 0x00, 0x00, 0x00, 
205 |   0x00, 0x03, 0xFC, 0x00, 0x00, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xC0, 0x3F, 0xC0, 0xFF, 0x3F, 0xF0, 0x3F, 0xC0, 0x3F, 0xC0, 
206 |   0x0F, 0xFF, 0xF0, 0x0A, 0xA0, 0x00, 0x00, 0x0A, 0xA0, 0x0A, 0xA0, 0x00, 0x00, 0x2A, 0x80, 0x2A, 0x80, 0x00, 0x00, 0x00, 
207 |   0x2A, 0xAA, 0xAA, 0xAA, 0x00, 0x02, 0xAA, 0xAA, 0xAA, 0xA8, 0x00, 0x03, 0xFC, 0x00, 0x00, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 
208 |   0xC0, 0x3F, 0xC0, 0xFF, 0x0F, 0xFC, 0x3F, 0xC0, 0x3F, 0xC0, 0x0F, 0xFF, 0xFC, 0x0A, 0xAA, 0xAA, 0xAA, 0xAA, 0xA0, 0x0A, 
209 |   0xA0, 0x00, 0x00, 0x2A, 0x80, 0x2A, 0x80, 0x00, 0x00, 0x00, 0x2A, 0xAA, 0xAA, 0xAA, 0xA0, 0x02, 0xAA, 0xAA, 0xAA, 0xA8, 
210 |   0x00, 0x03, 0xFC, 0x00, 0x00, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xC0, 0x3F, 0xC0, 0xFF, 0x03, 0xFF, 0x3F, 0xC0, 0x3F, 0xC0, 
211 |   0x0F, 0xFF, 0xFC, 0x0A, 0xAA, 0xAA, 0xAA, 0xAA, 0x80, 0x0A, 0xA0, 0x00, 0x00, 0x2A, 0x80, 0x2A, 0x80, 0x00, 0x00, 0x00, 
212 |   0x0A, 0xAA, 0xAA, 0xAA, 0xA8, 0x02, 0xAA, 0xAA, 0xAA, 0xA8, 0x00, 0x03, 0xFC, 0x00, 0x00, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 
213 |   0xC0, 0x3F, 0xC0, 0xFF, 0x00, 0xFF, 0x3F, 0xC0, 0x3F, 0xC0, 0x0F, 0xFF, 0xFC, 0x0A, 0xAA, 0xAA, 0xAA, 0xAA, 0x80, 0x0A, 
214 |   0xA0, 0x00, 0x00, 0x2A, 0x80, 0x2A, 0x80, 0x00, 0x00, 0x00, 0x02, 0xAA, 0xAA, 0xAA, 0xA8, 0x02, 0xAA, 0xAA, 0xAA, 0xA8, 
215 |   0x00, 0x03, 0xFC, 0x00, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x3F, 0xC0, 0x3F, 0xC0, 0xFF, 0x00, 0xFF, 0xFF, 0xC0, 0x3F, 0xC0, 
216 |   0x00, 0x03, 0xFC, 0x0A, 0xAA, 0xAA, 0xAA, 0xAA, 0x00, 0x0A, 0xA0, 0x00, 0x00, 0x2A, 0x80, 0x2A, 0x80, 0x00, 0x00, 0x00, 
217 |   0x00, 0x00, 0x00, 0x02, 0xA8, 0x02, 0xA8, 0x00, 0x00, 0x00, 0x00, 0x03, 0xFC, 0x00, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x3F, 
218 |   0xC0, 0x3F, 0xC0, 0xFF, 0x00, 0x3F, 0xFF, 0xC0, 0x3F, 0xC0, 0x00, 0x03, 0xFC, 0x0A, 0xA0, 0x00, 0x00, 0x00, 0x00, 0x0A, 
219 |   0xA0, 0x00, 0x00, 0x2A, 0x80, 0x2A, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAA, 0x02, 0xA8, 0x00, 0x00, 0x00, 
220 |   0x00, 0x03, 0xFC, 0x00, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x3F, 0xC0, 0x3F, 0xC0, 0xFF, 0x00, 0x0F, 0xFF, 0xC0, 0x3F, 0xFF, 
221 |   0xFF, 0xFF, 0xFC, 0x0A, 0xA0, 0x00, 0x00, 0x00, 0x00, 0x0A, 0xAA, 0xAA, 0xAA, 0xAA, 0x80, 0x2A, 0xAA, 0xAA, 0xAA, 0x80, 
222 |   0x0A, 0xAA, 0xAA, 0xAA, 0xA8, 0x02, 0xAA, 0xAA, 0xAA, 0xAA, 0x00, 0x03, 0xFC, 0x00, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x3F, 
223 |   0xC0, 0x3F, 0xC0, 0xFF, 0x00, 0x03, 0xFF, 0xC0, 0x3F, 0xFF, 0xFF, 0xFF, 0xFC, 0x0A, 0xA0, 0x00, 0x00, 0x00, 0x00, 0x0A, 
224 |   0xAA, 0xAA, 0xAA, 0xAA, 0x80, 0x2A, 0xAA, 0xAA, 0xAA, 0x80, 0x2A, 0xAA, 0xAA, 0xAA, 0xA8, 0x02, 0xAA, 0xAA, 0xAA, 0xAA, 
225 |   0x00, 0x03, 0xFC, 0x00, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x3F, 0xC0, 0x3F, 0xC0, 0xFF, 0x00, 0x00, 0xFF, 0xC0, 0x0F, 0xFF, 
226 |   0xFF, 0xFF, 0xFC, 0x0A, 0xA0, 0x00, 0x00, 0x00, 0x00, 0x02, 0xAA, 0xAA, 0xAA, 0xAA, 0x00, 0x2A, 0xAA, 0xAA, 0xAA, 0x80, 
227 |   0x2A, 0xAA, 0xAA, 0xAA, 0xA8, 0x02, 0xAA, 0xAA, 0xAA, 0xAA, 0x00, 0x03, 0xFC, 0x00, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x3F, 
228 |   0xC0, 0x3F, 0xC0, 0xFF, 0x00, 0x00, 0x3F, 0xC0, 0x00, 0xFF, 0xFF, 0xFF, 0xFC, 0x0A, 0xA0, 0x00, 0x00, 0x00, 0x00, 0x00, 
229 |   0xAA, 0xAA, 0xAA, 0xA8, 0x00, 0x2A, 0xAA, 0xAA, 0xAA, 0x80, 0x2A, 0xAA, 0xAA, 0xAA, 0x80, 0x02, 0xAA, 0xAA, 0xAA, 0xAA, 
230 |   };
231 | 
232 | const char miniNext[] PROGMEM = {
233 |   0x01, // Version: 1
234 |   0x02, // BitDepth: 2
235 |   0x00, 0x13, // Width: 19
236 |   0x00, 0x40, // Height: 64
237 |   // Round width to next byte: 24
238 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
239 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
240 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
241 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
242 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
243 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 
244 |   0x0F, 0x00, 0x00, 0x0D, 0x40, 0x05, 0x70, 0x00, 0x0D, 0x40, 0x05, 0x5C, 0x00, 0x0D, 0x40, 0x05, 0x55, 0xC0, 0x0D, 0x40, 
245 |   0x05, 0x55, 0x5C, 0x0D, 0x40, 0x05, 0x55, 0x55, 0x0D, 0x40, 0x05, 0x55, 0x55, 0x75, 0x40, 0x05, 0x55, 0x55, 0x55, 0x40, 
246 |   0x05, 0x55, 0x55, 0x55, 0x40, 0x05, 0x55, 0x55, 0xCD, 0x40, 0x05, 0x55, 0x5C, 0x0D, 0x40, 0x05, 0x55, 0x40, 0x0D, 0x40, 
247 |   0x05, 0x57, 0x00, 0x0D, 0x40, 0x05, 0x70, 0x00, 0x0D, 0x40, 0x0F, 0x00, 0x00, 0x0D, 0x40, 0x00, 0x00, 0x00, 0x03, 0xC0, 
248 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
249 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
250 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
251 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
252 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
253 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
254 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
255 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
256 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
257 |   0x00, 0x00, 0x00, 0x00, };
258 | 
259 | const char miniPrevious[] PROGMEM = {
260 |   0x01, // Version: 1
261 |   0x02, // BitDepth: 2
262 |   0x00, 0x13, // Width: 19
263 |   0x00, 0x40, // Height: 64
264 |   // Round width to next byte: 24
265 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
266 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
267 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
268 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
269 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
270 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xC0, 0x00, 0x00, 0x00, 
271 |   0x0D, 0x40, 0x00, 0x00, 0xC0, 0x0D, 0x40, 0x00, 0x0D, 0x70, 0x0D, 0x40, 0x00, 0xD5, 0x70, 0x0D, 0x40, 0x0D, 0x55, 0x70, 
272 |   0x0D, 0x40, 0x35, 0x55, 0x70, 0x0D, 0x43, 0x55, 0x55, 0x70, 0x0D, 0x75, 0x55, 0x55, 0x70, 0x0D, 0x55, 0x55, 0x55, 0x70, 
273 |   0x0D, 0x55, 0x55, 0x55, 0x70, 0x0D, 0x41, 0x55, 0x55, 0x70, 0x0D, 0x40, 0xD5, 0x55, 0x70, 0x0D, 0x40, 0x0D, 0x55, 0x70, 
274 |   0x0D, 0x40, 0x00, 0xD5, 0x70, 0x0D, 0x40, 0x00, 0x05, 0x70, 0x0D, 0x40, 0x00, 0x03, 0x40, 0x03, 0xC0, 0x00, 0x00, 0x00, 
275 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
276 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
277 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
278 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
279 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
280 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
281 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
282 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
283 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
284 |   0x00, 0x00, 0x00, 0x00, };
285 | 
286 | const char miniPlay[] PROGMEM = {
287 |   0x01, // Version: 1
288 |   0x02, // BitDepth: 2
289 |   0x00, 0x40, // Width: 64
290 |   0x00, 0x40, // Height: 64
291 |   // Round width to next byte: 64
292 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
293 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xFF, 
294 |   0xFF, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xFF, 0x00, 0x00, 0xFF, 0xC0, 0x00, 
295 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x3F, 0x00, 0x00, 0x00, 0x00, 0x00, 
296 |   0x00, 0x00, 0x00, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
297 |   0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xC0, 0x00, 0x00, 0x00, 
298 |   0x00, 0x00, 0x00, 0x03, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
299 |   0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 
300 |   0x00, 0x00, 0x03, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 
301 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 
302 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
303 |   0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xC0, 0x00, 
304 |   0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x0F, 0x00, 0x00, 
305 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
306 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3C, 0x00, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
307 |   0x00, 0x00, 0x0C, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x01, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 
308 |   0x00, 0xF0, 0x00, 0x00, 0x00, 0x0D, 0x57, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0xC0, 0x00, 0x00, 
309 |   0x00, 0x0D, 0x55, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x5C, 
310 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x55, 0xC0, 0x00, 0x00, 0x00, 
311 |   0x00, 0x00, 0x00, 0xC0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x55, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 
312 |   0x03, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x55, 0x57, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x03, 0x00, 0x00, 0x00, 
313 |   0x00, 0x0D, 0x55, 0x55, 0x55, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x55, 
314 |   0x55, 0x57, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x55, 0x55, 0x55, 0x40, 0x00, 
315 |   0x00, 0x00, 0x00, 0x30, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x55, 0x55, 0x55, 0x5C, 0x00, 0x00, 0x00, 0x00, 0x30, 
316 |   0x0C, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x55, 0x55, 0x55, 0x55, 0xC0, 0x00, 0x00, 0x00, 0x30, 0x0C, 0x00, 0x00, 0x00, 
317 |   0x00, 0x0D, 0x55, 0x55, 0x55, 0x55, 0x55, 0xC0, 0x00, 0x00, 0x00, 0x30, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x55, 
318 |   0x55, 0x55, 0x55, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x55, 0x55, 0x55, 0x5C, 0x00, 
319 |   0x00, 0x00, 0x00, 0x30, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x55, 0x55, 0x55, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x30, 
320 |   0x0C, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x55, 0x55, 0x54, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0F, 0x00, 0x00, 0x00, 
321 |   0x00, 0x0D, 0x55, 0x55, 0x55, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x03, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x55, 
322 |   0x57, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x03, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x55, 0x70, 0x00, 0x00, 0x00, 
323 |   0x00, 0x00, 0x00, 0xF0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x55, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 
324 |   0x03, 0x00, 0x00, 0x00, 0x00, 0x0D, 0x55, 0x5C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0xC0, 0x00, 0x00, 
325 |   0x00, 0x0D, 0x55, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x0D, 0x5C, 0x00, 
326 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0xF0, 0x00, 0x00, 0x00, 0x01, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 
327 |   0x00, 0x00, 0x03, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 
328 |   0x00, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x0C, 0x00, 0x00, 
329 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3C, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
330 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
331 |   0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xC0, 0x00, 
332 |   0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x3C, 0x00, 
333 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 
334 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x03, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
335 |   0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 
336 |   0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 
337 |   0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC, 0x00, 0x00, 0x00, 
338 |   0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 
339 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x3F, 0x00, 0x00, 0x00, 0x00, 0x00, 
340 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xFF, 0x00, 0x00, 0xFF, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
341 |   0x00, 0x00, 0x03, 0xFF, 0xFF, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
342 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
343 |   0x00, 0x00, 0x00, 0x00, };
344 | 
345 | const char miniPause[] PROGMEM = {
346 |   0x01, // Version: 1
347 |   0x02, // BitDepth: 2
348 |   0x00, 0x40, // Width: 64
349 |   0x00, 0x40, // Height: 64
350 |   // Round width to next byte: 64
351 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
352 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xFF, 
353 |   0xFF, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xFF, 0x00, 0x00, 0xFF, 0xC0, 0x00, 
354 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x3F, 0x00, 0x00, 0x00, 0x00, 0x00, 
355 |   0x00, 0x00, 0x00, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
356 |   0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xC0, 0x00, 0x00, 0x00, 
357 |   0x00, 0x00, 0x00, 0x03, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
358 |   0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 
359 |   0x00, 0x00, 0x03, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 
360 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 
361 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
362 |   0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xC0, 0x00, 
363 |   0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x0F, 0x00, 0x00, 
364 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
365 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3C, 0x00, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 
366 |   0x00, 0x00, 0x0C, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x0F, 0x00, 
367 |   0x00, 0xF0, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0xC0, 0x00, 0x00, 
368 |   0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 
369 |   0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 
370 |   0x00, 0x00, 0x00, 0xC0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0xC0, 
371 |   0x03, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x03, 0x00, 0x00, 0x00, 
372 |   0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 
373 |   0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 
374 |   0x00, 0x00, 0x00, 0x30, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0x30, 
375 |   0x0C, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0C, 0x00, 0x00, 0x00, 
376 |   0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 
377 |   0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 
378 |   0x00, 0x00, 0x00, 0x30, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0x30, 
379 |   0x0C, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0F, 0x00, 0x00, 0x00, 
380 |   0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0x30, 0x03, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 
381 |   0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0x30, 0x03, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 
382 |   0x00, 0x00, 0x00, 0xF0, 0x03, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0xC0, 
383 |   0x03, 0x00, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0xC0, 0x00, 0x00, 
384 |   0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 
385 |   0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0xF0, 0x00, 0x00, 0x00, 0x15, 0x54, 0x00, 0x00, 0xD5, 0x50, 0x00, 
386 |   0x00, 0x00, 0x03, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x15, 0x5C, 0x00, 0x00, 0xD5, 0x50, 0x00, 0x00, 0x00, 0x0F, 0x00, 
387 |   0x00, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x0C, 0x00, 0x00, 
388 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3C, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
389 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
390 |   0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xC0, 0x00, 
391 |   0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x3C, 0x00, 
392 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 
393 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x03, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
394 |   0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 
395 |   0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 
396 |   0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC, 0x00, 0x00, 0x00, 
397 |   0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 
398 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x3F, 0x00, 0x00, 0x00, 0x00, 0x00, 
399 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xFF, 0x00, 0x00, 0xFF, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
400 |   0x00, 0x00, 0x03, 0xFF, 0xFF, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
401 |   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
402 |   0x00, 0x00, 0x00, 0x00, };
403 | 


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/images/SpotifyAppSettings.png:
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https://raw.githubusercontent.com/ThingPulse/esp8266-spotify-remote/13727e1e8c79464aed92540a2a51917f0916f01f/images/SpotifyAppSettings.png


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/images/SpotifyAppSettingsSave.png:
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https://raw.githubusercontent.com/ThingPulse/esp8266-spotify-remote/13727e1e8c79464aed92540a2a51917f0916f01f/images/SpotifyAppSettingsSave.png


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/images/SpotifyAppSignUp1.png:
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https://raw.githubusercontent.com/ThingPulse/esp8266-spotify-remote/13727e1e8c79464aed92540a2a51917f0916f01f/images/SpotifyAppSignUp1.png


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/images/SpotifyConnectScreen.png:
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https://raw.githubusercontent.com/ThingPulse/esp8266-spotify-remote/13727e1e8c79464aed92540a2a51917f0916f01f/images/SpotifyConnectScreen.png


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/images/SpotifyCredentials.png:
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https://raw.githubusercontent.com/ThingPulse/esp8266-spotify-remote/13727e1e8c79464aed92540a2a51917f0916f01f/images/SpotifyCredentials.png


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/images/SpotifyDashboard.png:
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https://raw.githubusercontent.com/ThingPulse/esp8266-spotify-remote/13727e1e8c79464aed92540a2a51917f0916f01f/images/SpotifyDashboard.png


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/images/SpotifyppSignUp3.png:
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https://raw.githubusercontent.com/ThingPulse/esp8266-spotify-remote/13727e1e8c79464aed92540a2a51917f0916f01f/images/SpotifyppSignUp3.png


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/mem-analysis.txt:
--------------------------------------------------------------------------------
 1 | 21:42:19.037 -> SDK:2.2.2-dev(38a443e)/Core:2.7.3-3-g2843a5ac=20703003/lwIP:STABLE-2_1_2_RELEASE/glue:1.2-30-g92add50/BearSSL:5c771be
 2 | 21:42:19.037 -> 
 3 | 21:42:19.037 -> *** Memory stats right after setup() ***
 4 | 21:42:19.037 -> 	Free heap: 34184
 5 | 21:42:19.037 -> 	Max free block size: 34112
 6 | 21:42:19.037 -> 	Heap fragmentation: 1
 7 | 21:42:19.037 -> 
 8 | 21:42:19.037 -> 
 9 | 21:42:19.037 -> connecting to SheDJs
10 | 21:42:19.037 -> scandone
11 | 21:42:19.142 -> scandone
12 | 21:42:19.142 -> state: 0 -> 2 (b0)
13 | 21:42:19.142 -> state: 2 -> 3 (0)
14 | 21:42:19.142 -> state: 3 -> 5 (10)
15 | 21:42:19.142 -> add 0
16 | 21:42:19.142 -> aid 4
17 | 21:42:19.142 -> cnt 
18 | 21:42:19.142 -> 
19 | 21:42:19.142 -> connected with ******, channel 1
20 | 21:42:19.142 -> dhcp client start...
21 | 21:42:19.179 -> ip:192.168.0.53,mask:255.255.255.0,gw:192.168.0.1
22 | 21:42:19.535 -> .
23 | 21:42:19.535 -> WiFi connected
24 | 21:42:19.535 -> IP address: 
25 | 21:42:19.535 -> 192.168.0.53
26 | 21:42:19.535 -> *** Memory stats after WiFi connection ***
27 | 21:42:19.535 -> 	Free heap: 33608
28 | 21:42:19.535 -> 	Max free block size: 32864
29 | 21:42:19.535 -> 	Heap fragmentation: 3
30 | 21:42:19.535 -> 
31 | 21:42:19.535 -> Waiting for NTP time sync: .
32 | 21:42:20.035 -> Current time: Fri Sep 11 19:42:19 2020
33 | 21:42:20.109 -> BSSL:_connectSSL: start connection
34 | 21:42:20.844 -> BSSL:Connected!
35 | 21:42:20.844 -> Connection to Spotify established.
36 | 21:42:20.844 -> Stack used: 1200
37 | 21:42:20.844 -> 
38 | 21:42:20.844 -> *** Memory stats after socket connection established ***
39 | 21:42:20.844 -> 	Free heap: 31336
40 | 21:42:20.844 -> 	Max free block size: 31200
41 | 21:42:20.844 -> 	Heap fragmentation: 1
42 | 21:42:20.844 -> 
43 | 21:42:21.059 -> *** Memory stats after 1st GFX commit ***
44 | 21:42:21.059 -> 	Free heap: 21800
45 | 21:42:21.059 -> 	Max free block size: 21584
46 | 21:42:21.059 -> 	Heap fragmentation: 1
47 | 21:42:21.059 -> 
48 | 21:42:21.416 -> *** Memory stats after SPIFFS mounted ***
49 | 21:42:21.416 -> 	Free heap: 19600
50 | 21:42:21.416 -> 	Max free block size: 19384
51 | 21:42:21.416 -> 	Heap fragmentation: 2
52 | 21:42:21.416 -> 
53 | 21:42:21.416 -> PIFFS opened: 
54 | 21:42:21.416 -> *** Memory stats after touch screen initialized ***
55 | 21:42:21.416 -> 	Free heap: 19600
56 | 21:42:21.416 -> 	Max free block size: 19384
57 | 21:42:21.416 -> 	Heap fragmentation: 2
58 | 21:42:21.416 -> 
59 | 21:42:21.416 -> Loading config
60 | 21:42:21.772 -> Failed to open config file
61 | 21:42:21.772 -> No refresh token found. Requesting through browser
62 | 21:42:21.809 -> Starting config portal
63 | 21:42:21.809 -> HTTP server started
64 | 21:42:21.809 -> MDNS responder started
65 | 21:42:21.809 -> Open browser at http://esp8266.local
66 | 21:42:29.125 -> pm open,type:2 0
67 | 21:45:48.142 -> Serving resource '/'
68 | 21:45:48.142 -> Sending HTTP 302 to Spotify
69 | 21:45:48.318 -> Code: ********************************************************************************** 
70 | 21:45:48.318 -> Stopping HTTP server
71 | 21:45:48.318 -> Stopping MDNS responder
72 | 21:45:48.358 -> BSSL:_connectSSL: start connection
73 | 21:45:48.358 -> BSSL:_connectSSL: OOM error
74 | 21:45:48.358 -> Connection to accounts.spotify.com:443 failed; returning.
75 | 21:45:48.358 -> Refresh token: 
76 | 21:45:48.358 -> Access Token: 
77 | 21:45:48.358 -> BSSL:_connectSSL: start connection
78 | 21:45:48.358 -> BSSL:_connectSSL: OOM error
79 | 21:45:48.358 -> connection failed
80 | 21:45:48.358 -> HREF: 
81 | 21:45:48.358 -> --------Response Code: 0
82 | 21:45:48.358 -> --------Free mem: 18424
83 | 


--------------------------------------------------------------------------------
/settings.h:
--------------------------------------------------------------------------------
  1 | /**The MIT License (MIT)
  2 |  
  3 |  Copyright (c) 2018 by ThingPulse Ltd., https://thingpulse.com
  4 |  
  5 |  Permission is hereby granted, free of charge, to any person obtaining a copy
  6 |  of this software and associated documentation files (the "Software"), to deal
  7 |  in the Software without restriction, including without limitation the rights
  8 |  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  9 |  copies of the Software, and to permit persons to whom the Software is
 10 |  furnished to do so, subject to the following conditions:
 11 |  
 12 |  The above copyright notice and this permission notice shall be included in all
 13 |  copies or substantial portions of the Software.
 14 |  
 15 |  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 16 |  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 17 |  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 18 |  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 19 |  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 20 |  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 21 |  SOFTWARE.
 22 |  */
 23 | 
 24 | #include <TZ.h>
 25 | 
 26 | // ****************************************************************************
 27 | // User settings
 28 | // ****************************************************************************
 29 | 
 30 | // WiFi settings
 31 | const char* ssid = "yourssid";
 32 | const char* password = "yourpassw0rd";
 33 | 
 34 | // Spotify settings
 35 | String clientId = "API CLIENT ID";
 36 | String clientSecret = "API CLIENT SECRET";
 37 | // These next two lines have to match. A client clientSpotifierHostName makes the
 38 | // node listen on http://esp8266.local. Spotify needs an exact match of the redirect url
 39 | String espotifierNodeName = "esp8266";
 40 | String redirectUri = "http%3A%2F%2F" + espotifierNodeName + ".local%2Fcallback%2F";
 41 | 
 42 | // Pick a timezone at https://github.com/esp8266/Arduino/blob/master/cores/esp8266/TZ.h#L389
 43 | #define TIMEZONE TZ_Europe_Zurich
 44 | 
 45 | // ****************************************************************************
 46 | // System settings - do not modify unless you understand what you are doing!
 47 | // ****************************************************************************
 48 | 
 49 | // DigiCert Global Root CA exported from Firefox as x509.pem format
 50 | static const char digicertRootCaCert[] PROGMEM = R"EOF(
 51 | -----BEGIN CERTIFICATE-----
 52 | MIIDrzCCApegAwIBAgIQCDvgVpBCRrGhdWrJWZHHSjANBgkqhkiG9w0BAQUFADBh
 53 | MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
 54 | d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBD
 55 | QTAeFw0wNjExMTAwMDAwMDBaFw0zMTExMTAwMDAwMDBaMGExCzAJBgNVBAYTAlVT
 56 | MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5j
 57 | b20xIDAeBgNVBAMTF0RpZ2lDZXJ0IEdsb2JhbCBSb290IENBMIIBIjANBgkqhkiG
 58 | 9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4jvhEXLeqKTTo1eqUKKPC3eQyaKl7hLOllsB
 59 | CSDMAZOnTjC3U/dDxGkAV53ijSLdhwZAAIEJzs4bg7/fzTtxRuLWZscFs3YnFo97
 60 | nh6Vfe63SKMI2tavegw5BmV/Sl0fvBf4q77uKNd0f3p4mVmFaG5cIzJLv07A6Fpt
 61 | 43C/dxC//AH2hdmoRBBYMql1GNXRor5H4idq9Joz+EkIYIvUX7Q6hL+hqkpMfT7P
 62 | T19sdl6gSzeRntwi5m3OFBqOasv+zbMUZBfHWymeMr/y7vrTC0LUq7dBMtoM1O/4
 63 | gdW7jVg/tRvoSSiicNoxBN33shbyTApOB6jtSj1etX+jkMOvJwIDAQABo2MwYTAO
 64 | BgNVHQ8BAf8EBAMCAYYwDwYDVR0TAQH/BAUwAwEB/zAdBgNVHQ4EFgQUA95QNVbR
 65 | TLtm8KPiGxvDl7I90VUwHwYDVR0jBBgwFoAUA95QNVbRTLtm8KPiGxvDl7I90VUw
 66 | DQYJKoZIhvcNAQEFBQADggEBAMucN6pIExIK+t1EnE9SsPTfrgT1eXkIoyQY/Esr
 67 | hMAtudXH/vTBH1jLuG2cenTnmCmrEbXjcKChzUyImZOMkXDiqw8cvpOp/2PV5Adg
 68 | 06O/nVsJ8dWO41P0jmP6P6fbtGbfYmbW0W5BjfIttep3Sp+dWOIrWcBAI+0tKIJF
 69 | PnlUkiaY4IBIqDfv8NZ5YBberOgOzW6sRBc4L0na4UU+Krk2U886UAb3LujEV0ls
 70 | YSEY1QSteDwsOoBrp+uvFRTp2InBuThs4pFsiv9kuXclVzDAGySj4dzp30d8tbQk
 71 | CAUw7C29C79Fv1C5qfPrmAESrciIxpg0X40KPMbp1ZWVbd4=
 72 | -----END CERTIFICATE-----
 73 | )EOF";
 74 | 
 75 | // UI Settings
 76 | #define SHOW_TOUCH_POINT_MILLIS 1500
 77 | 
 78 | // Hardware settings
 79 | #define TFT_DC D2
 80 | #define TFT_CS D1
 81 | #define TFT_LED D8
 82 | 
 83 | #define TOUCH_CS D3
 84 | #define TOUCH_IRQ  D4
 85 | 
 86 | // Display settings
 87 | #define MINI_BLACK 0
 88 | #define MINI_WHITE 1
 89 | #define MINI_YELLOW 2
 90 | #define MINI_GRAY 3
 91 | 
 92 | // defines the colors usable in the paletted 16 color frame buffer
 93 | uint16_t palette[] = {ILI9341_BLACK, // 0
 94 |                       ILI9341_WHITE, // 1
 95 |                       ILI9341_YELLOW, // 2
 96 |                       0x840F
 97 |                       }; //3
 98 | 
 99 | #define MEMORY_DEBUG
100 | 


--------------------------------------------------------------------------------