├── .github ├── ISSUE_TEMPLATE.md ├── PULL_REQUEST_TEMPLATE.md └── workflows │ └── githubci.yml ├── .gitignore ├── Adafruit_DotStarMatrix.cpp ├── Adafruit_DotStarMatrix.h ├── COPYING ├── README.md ├── examples ├── dotstar_wing │ └── dotstar_wing.ino ├── matrixtest │ └── matrixtest.pde └── tiletest │ └── tiletest.pde ├── extras └── gamma.c ├── gamma.h └── library.properties /.github/ISSUE_TEMPLATE.md: -------------------------------------------------------------------------------- 1 | Thank you for opening an issue on an Adafruit Arduino library repository. To 2 | improve the speed of resolution please review the following guidelines and 3 | common troubleshooting steps below before creating the issue: 4 | 5 | - **Do not use GitHub issues for troubleshooting projects and issues.** Instead use 6 | the forums at http://forums.adafruit.com to ask questions and troubleshoot why 7 | something isn't working as expected. In many cases the problem is a common issue 8 | that you will more quickly receive help from the forum community. GitHub issues 9 | are meant for known defects in the code. If you don't know if there is a defect 10 | in the code then start with troubleshooting on the forum first. 11 | 12 | - **If following a tutorial or guide be sure you didn't miss a step.** Carefully 13 | check all of the steps and commands to run have been followed. Consult the 14 | forum if you're unsure or have questions about steps in a guide/tutorial. 15 | 16 | - **For Arduino projects check these very common issues to ensure they don't apply**: 17 | 18 | - For uploading sketches or communicating with the board make sure you're using 19 | a **USB data cable** and **not** a **USB charge-only cable**. It is sometimes 20 | very hard to tell the difference between a data and charge cable! Try using the 21 | cable with other devices or swapping to another cable to confirm it is not 22 | the problem. 23 | 24 | - **Be sure you are supplying adequate power to the board.** Check the specs of 25 | your board and plug in an external power supply. In many cases just 26 | plugging a board into your computer is not enough to power it and other 27 | peripherals. 28 | 29 | - **Double check all soldering joints and connections.** Flakey connections 30 | cause many mysterious problems. See the [guide to excellent soldering](https://learn.adafruit.com/adafruit-guide-excellent-soldering/tools) for examples of good solder joints. 31 | 32 | - **Ensure you are using an official Arduino or Adafruit board.** We can't 33 | guarantee a clone board will have the same functionality and work as expected 34 | with this code and don't support them. 35 | 36 | If you're sure this issue is a defect in the code and checked the steps above 37 | please fill in the following fields to provide enough troubleshooting information. 38 | You may delete the guideline and text above to just leave the following details: 39 | 40 | - Arduino board: **INSERT ARDUINO BOARD NAME/TYPE HERE** 41 | 42 | - Arduino IDE version (found in Arduino -> About Arduino menu): **INSERT ARDUINO 43 | VERSION HERE** 44 | 45 | - List the steps to reproduce the problem below (if possible attach a sketch or 46 | copy the sketch code in too): **LIST REPRO STEPS BELOW** 47 | -------------------------------------------------------------------------------- /.github/PULL_REQUEST_TEMPLATE.md: -------------------------------------------------------------------------------- 1 | Thank you for creating a pull request to contribute to Adafruit's GitHub code! 2 | Before you open the request please review the following guidelines and tips to 3 | help it be more easily integrated: 4 | 5 | - **Describe the scope of your change--i.e. what the change does and what parts 6 | of the code were modified.** This will help us understand any risks of integrating 7 | the code. 8 | 9 | - **Describe any known limitations with your change.** For example if the change 10 | doesn't apply to a supported platform of the library please mention it. 11 | 12 | - **Please run any tests or examples that can exercise your modified code.** We 13 | strive to not break users of the code and running tests/examples helps with this 14 | process. 15 | 16 | Thank you again for contributing! We will try to test and integrate the change 17 | as soon as we can, but be aware we have many GitHub repositories to manage and 18 | can't immediately respond to every request. There is no need to bump or check in 19 | on a pull request (it will clutter the discussion of the request). 20 | 21 | Also don't be worried if the request is closed or not integrated--sometimes the 22 | priorities of Adafruit's GitHub code (education, ease of use) might not match the 23 | priorities of the pull request. Don't fret, the open source community thrives on 24 | forks and GitHub makes it easy to keep your changes in a forked repo. 25 | 26 | After reviewing the guidelines above you can delete this text from the pull request. 27 | -------------------------------------------------------------------------------- /.github/workflows/githubci.yml: -------------------------------------------------------------------------------- 1 | name: Arduino Library CI 2 | 3 | on: [pull_request, push, repository_dispatch] 4 | 5 | jobs: 6 | build: 7 | runs-on: ubuntu-latest 8 | 9 | steps: 10 | - uses: actions/setup-python@v4 11 | with: 12 | python-version: '3.x' 13 | - uses: actions/checkout@v3 14 | - uses: actions/checkout@v3 15 | with: 16 | repository: adafruit/ci-arduino 17 | path: ci 18 | 19 | - name: pre-install 20 | run: bash ci/actions_install.sh 21 | 22 | - name: test platforms 23 | run: python3 ci/build_platform.py main_platforms 24 | 25 | - name: clang 26 | run: python3 ci/run-clang-format.py -e "ci/*" -e "bin/*" -r . 27 | 28 | - name: doxygen 29 | env: 30 | GH_REPO_TOKEN: ${{ secrets.GH_REPO_TOKEN }} 31 | PRETTYNAME : "Adafruit DotStarMatrix" 32 | run: bash ci/doxy_gen_and_deploy.sh 33 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Our handy .gitignore for automation ease 2 | Doxyfile* 3 | doxygen_sqlite3.db 4 | html 5 | -------------------------------------------------------------------------------- /Adafruit_DotStarMatrix.cpp: -------------------------------------------------------------------------------- 1 | /*! 2 | * @file Adafruit_DotStarMatrix.cpp 3 | * 4 | * @mainpage GFX-compatible layer for DotStar matrices. 5 | * 6 | * @section intro_sec Introduction 7 | * 8 | * Arduino library to control single and tiled matrices of APA102-based 9 | * RGB LED devices such as displays assembled from DotStar strips, making 10 | * them compatible with the Adafruit_GFX graphics library. 11 | * 12 | * Adafruit invests time and resources providing this open source code, 13 | * please support Adafruit and open-source hardware by purchasing 14 | * products from Adafruit! 15 | * 16 | * @section dependencies Dependencies 17 | * 18 | * This library depends on Adafruit_DotStar 20 | * and Adafruit_GFX 22 | * being present on your system. Please make sure you have installed the 23 | * latest versions before using this library. 24 | * 25 | * @section author Author 26 | * 27 | * Written by Phil Burgess / Paint Your Dragon for Adafruit Industries. 28 | * 29 | * @section license License 30 | * 31 | * This file is part of the Adafruit DotStarMatrix library. 32 | * 33 | * DotStarMatrix is free software: you can redistribute it and/or modify 34 | * it under the terms of the GNU Lesser General Public License as 35 | * published by the Free Software Foundation, either version 3 of 36 | * the License, or (at your option) any later version. 37 | * 38 | * DotStarMatrix is distributed in the hope that it will be useful, 39 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 40 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 41 | * GNU Lesser General Public License for more details. 42 | * 43 | * You should have received a copy of the GNU Lesser General Public 44 | * License along with DotStarMatrix. If not, see 45 | * . 46 | * 47 | */ 48 | 49 | #include "gamma.h" 50 | #include 51 | #include 52 | #ifdef __AVR__ 53 | #include 54 | #elif defined(ESP8266) 55 | #include 56 | #else 57 | #ifndef pgm_read_byte 58 | #define pgm_read_byte(addr) \ 59 | (*(const unsigned char *)(addr)) ///< PROGMEM concept doesn't apply on ESP8266 60 | #endif 61 | #endif 62 | 63 | #ifndef _swap_uint16_t 64 | #define _swap_uint16_t(a, b) \ 65 | { \ 66 | uint16_t t = a; \ 67 | a = b; \ 68 | b = t; \ 69 | } ///< Swap contents of two uint16_t variables 70 | #endif 71 | 72 | // Constructor for single matrix w/hardware SPI: 73 | Adafruit_DotStarMatrix::Adafruit_DotStarMatrix(int w, int h, uint8_t matrixType, 74 | uint8_t ledType) 75 | : Adafruit_GFX(w, h), Adafruit_DotStar(w * h, ledType), type(matrixType), 76 | matrixWidth(w), matrixHeight(h), tilesX(0), tilesY(0), remapFn(NULL) {} 77 | 78 | // Constructor for single matrix w/bitbang SPI: 79 | Adafruit_DotStarMatrix::Adafruit_DotStarMatrix(int w, int h, uint8_t d, 80 | uint8_t c, uint8_t matrixType, 81 | uint8_t ledType) 82 | : Adafruit_GFX(w, h), Adafruit_DotStar(w * h, d, c, ledType), 83 | type(matrixType), matrixWidth(w), matrixHeight(h), tilesX(0), tilesY(0), 84 | remapFn(NULL) {} 85 | 86 | // Constructor for tiled matrices w/hardware SPI: 87 | Adafruit_DotStarMatrix::Adafruit_DotStarMatrix(uint8_t mW, uint8_t mH, 88 | uint8_t tX, uint8_t tY, 89 | uint8_t matrixType, 90 | uint8_t ledType) 91 | : Adafruit_GFX(mW * tX, mH * tY), 92 | Adafruit_DotStar(mW * mH * tX * tY, ledType), type(matrixType), 93 | matrixWidth(mW), matrixHeight(mH), tilesX(tX), tilesY(tY), remapFn(NULL) { 94 | } 95 | 96 | // Constructor for tiled matrices w/bitbang SPI: 97 | Adafruit_DotStarMatrix::Adafruit_DotStarMatrix(uint8_t mW, uint8_t mH, 98 | uint8_t tX, uint8_t tY, 99 | uint8_t d, uint8_t c, 100 | uint8_t matrixType, 101 | uint8_t ledType) 102 | : Adafruit_GFX(mW * tX, mH * tY), 103 | Adafruit_DotStar(mW * mH * tX * tY, d, c, ledType), type(matrixType), 104 | matrixWidth(mW), matrixHeight(mH), tilesX(tX), tilesY(tY), remapFn(NULL) { 105 | } 106 | 107 | // Expand 16-bit input color (Adafruit_GFX colorspace) to 24-bit (DotStar) 108 | // (w/gamma adjustment) 109 | static uint32_t expandColor(uint16_t color) { 110 | return ((uint32_t)pgm_read_byte(&gamma5[color >> 11]) << 16) | 111 | ((uint32_t)pgm_read_byte(&gamma6[(color >> 5) & 0x3F]) << 8) | 112 | pgm_read_byte(&gamma5[color & 0x1F]); 113 | } 114 | 115 | // Downgrade 24-bit color to 16-bit (add reverse gamma lookup here?) 116 | uint16_t Adafruit_DotStarMatrix::Color(uint8_t r, uint8_t g, uint8_t b) { 117 | return ((uint16_t)(r & 0xF8) << 8) | ((uint16_t)(g & 0xFC) << 3) | (b >> 3); 118 | } 119 | 120 | // Pass raw color value to set/enable passthrough 121 | void Adafruit_DotStarMatrix::setPassThruColor(uint32_t c) { 122 | passThruColor = c; 123 | passThruFlag = true; 124 | } 125 | 126 | // Call without a value to reset (disable passthrough) 127 | void Adafruit_DotStarMatrix::setPassThruColor(void) { passThruFlag = false; } 128 | 129 | void Adafruit_DotStarMatrix::drawPixel(int16_t x, int16_t y, uint16_t color) { 130 | 131 | if ((x < 0) || (y < 0) || (x >= _width) || (y >= _height)) 132 | return; 133 | 134 | int16_t t; 135 | switch (rotation) { 136 | case 1: 137 | t = x; 138 | x = WIDTH - 1 - y; 139 | y = t; 140 | break; 141 | case 2: 142 | x = WIDTH - 1 - x; 143 | y = HEIGHT - 1 - y; 144 | break; 145 | case 3: 146 | t = x; 147 | x = y; 148 | y = HEIGHT - 1 - t; 149 | break; 150 | } 151 | 152 | int tileOffset = 0, pixelOffset; 153 | 154 | if (remapFn) { // Custom X/Y remapping function 155 | pixelOffset = (*remapFn)(x, y); 156 | } else { // Standard single matrix or tiled matrices 157 | 158 | uint8_t corner = type & DS_MATRIX_CORNER; 159 | uint16_t minor, major, majorScale; 160 | 161 | if (tilesX) { // Tiled display, multiple matrices 162 | uint16_t tile; 163 | 164 | minor = x / matrixWidth; // Tile # X/Y; presume row major to 165 | major = y / matrixHeight, // start (will swap later if needed) 166 | x = x - (minor * matrixWidth); // Pixel X/Y within tile 167 | y = y - (major * matrixHeight); // (-* is less math than modulo) 168 | 169 | // Determine corner of entry, flip axes if needed 170 | if (type & DS_TILE_RIGHT) 171 | minor = tilesX - 1 - minor; 172 | if (type & DS_TILE_BOTTOM) 173 | major = tilesY - 1 - major; 174 | 175 | // Determine actual major axis of tiling 176 | if ((type & DS_TILE_AXIS) == DS_TILE_ROWS) { 177 | majorScale = tilesX; 178 | } else { 179 | _swap_uint16_t(major, minor); 180 | majorScale = tilesY; 181 | } 182 | 183 | // Determine tile number 184 | if ((type & DS_TILE_SEQUENCE) == DS_TILE_PROGRESSIVE) { 185 | // All tiles in same order 186 | tile = major * majorScale + minor; 187 | } else { 188 | // Zigzag; alternate rows change direction. On these rows, 189 | // this also flips the starting corner of the matrix for the 190 | // pixel math later. 191 | if (major & 1) { 192 | corner ^= DS_MATRIX_CORNER; 193 | tile = (major + 1) * majorScale - 1 - minor; 194 | } else { 195 | tile = major * majorScale + minor; 196 | } 197 | } 198 | 199 | // Index of first pixel in tile 200 | tileOffset = tile * matrixWidth * matrixHeight; 201 | 202 | } // else no tiling (handle as single tile) 203 | 204 | // Find pixel number within tile 205 | minor = x; // Presume row major to start (will swap later if needed) 206 | major = y; 207 | 208 | // Determine corner of entry, flip axes if needed 209 | if (corner & DS_MATRIX_RIGHT) 210 | minor = matrixWidth - 1 - minor; 211 | if (corner & DS_MATRIX_BOTTOM) 212 | major = matrixHeight - 1 - major; 213 | 214 | // Determine actual major axis of matrix 215 | if ((type & DS_MATRIX_AXIS) == DS_MATRIX_ROWS) { 216 | majorScale = matrixWidth; 217 | } else { 218 | _swap_uint16_t(major, minor); 219 | majorScale = matrixHeight; 220 | } 221 | 222 | // Determine pixel number within tile/matrix 223 | if ((type & DS_MATRIX_SEQUENCE) == DS_MATRIX_PROGRESSIVE) { 224 | // All lines in same order 225 | pixelOffset = major * majorScale + minor; 226 | } else { 227 | // Zigzag; alternate rows change direction. 228 | if (major & 1) 229 | pixelOffset = (major + 1) * majorScale - 1 - minor; 230 | else 231 | pixelOffset = major * majorScale + minor; 232 | } 233 | } 234 | 235 | setPixelColor(tileOffset + pixelOffset, 236 | passThruFlag ? passThruColor : expandColor(color)); 237 | } 238 | 239 | void Adafruit_DotStarMatrix::fillScreen(uint16_t color) { 240 | uint16_t i, n; 241 | uint32_t c; 242 | 243 | c = passThruFlag ? passThruColor : expandColor(color); 244 | n = numPixels(); 245 | for (i = 0; i < n; i++) 246 | setPixelColor(i, c); 247 | } 248 | 249 | void Adafruit_DotStarMatrix::setRemapFunction(uint16_t (*fn)(uint16_t, 250 | uint16_t)) { 251 | remapFn = fn; 252 | } 253 | -------------------------------------------------------------------------------- /Adafruit_DotStarMatrix.h: -------------------------------------------------------------------------------- 1 | /*! 2 | * @file Adafruit_DotStarMatrix.h 3 | * 4 | * Arduino library to control single and tiled matrices of APA102-based 5 | * RGB LED devices such as displays assembled from DotStar strips, making 6 | * them compatible with the Adafruit_GFX graphics library. 7 | * 8 | * Adafruit invests time and resources providing this open source code, 9 | * please support Adafruit and open-source hardware by purchasing 10 | * products from Adafruit! 11 | * 12 | * Written by Phil Burgess / Paint Your Dragon for Adafruit Industries. 13 | * 14 | * This file is part of the Adafruit DotStarMatrix library. 15 | * 16 | * DotStarMatrix is free software: you can redistribute it and/or modify 17 | * it under the terms of the GNU Lesser General Public License as 18 | * published by the Free Software Foundation, either version 3 of 19 | * the License, or (at your option) any later version. 20 | * 21 | * DotStarMatrix is distributed in the hope that it will be useful, 22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 24 | * GNU Lesser General Public License for more details. 25 | * 26 | * You should have received a copy of the GNU Lesser General Public 27 | * License along with DotStarMatrix. If not, see 28 | * . 29 | * 30 | */ 31 | 32 | #ifndef _ADAFRUIT_DSMATRIX_H_ 33 | #define _ADAFRUIT_DSMATRIX_H_ 34 | 35 | #if ARDUINO >= 100 36 | #include 37 | #else 38 | #include 39 | #include 40 | #endif 41 | #include 42 | #include 43 | 44 | // Matrix layout information is passed in the 'matrixType' parameter for 45 | // each constructor (the parameter immediately following is the LED type 46 | // from Adafruit_DotStar.h). 47 | 48 | // These define the layout for a single 'unified' matrix (e.g. one made 49 | // from DotStar strips), or for the pixels within each matrix of a tiled 50 | // display. 51 | 52 | #define DS_MATRIX_TOP 0x00 ///< Pixel 0 is at top of matrix 53 | #define DS_MATRIX_BOTTOM 0x01 ///< Pixel 0 is at bottom of matrix 54 | #define DS_MATRIX_LEFT 0x00 ///< Pixel 0 is at left of matrix 55 | #define DS_MATRIX_RIGHT 0x02 ///< Pixel 0 is at right of matrix 56 | #define DS_MATRIX_CORNER 0x03 ///< Bitmask for pixel 0 matrix corner 57 | #define DS_MATRIX_ROWS 0x00 ///< Matrix is row major (horizontal) 58 | #define DS_MATRIX_COLUMNS 0x04 ///< Matrix is column major (vertical) 59 | #define DS_MATRIX_AXIS 0x04 ///< Bitmask for row/column layout 60 | #define DS_MATRIX_PROGRESSIVE 0x00 ///< Same pixel order across each line 61 | #define DS_MATRIX_ZIGZAG 0x08 ///< Pixel order reverses between lines 62 | #define DS_MATRIX_SEQUENCE 0x08 ///< Bitmask for pixel line order 63 | 64 | // These apply only to tiled displays (multiple matrices): 65 | 66 | #define DS_TILE_TOP 0x00 ///< First tile is at top of matrix 67 | #define DS_TILE_BOTTOM 0x10 ///< First tile is at bottom of matrix 68 | #define DS_TILE_LEFT 0x00 ///< First tile is at left of matrix 69 | #define DS_TILE_RIGHT 0x20 ///< First tile is at right of matrix 70 | #define DS_TILE_CORNER 0x30 ///< Bitmask for first tile corner 71 | #define DS_TILE_ROWS 0x00 ///< Tiles ordered in rows 72 | #define DS_TILE_COLUMNS 0x40 ///< Tiles ordered in columns 73 | #define DS_TILE_AXIS 0x40 ///< Bitmask for tile H/V orientation 74 | #define DS_TILE_PROGRESSIVE 0x00 ///< Same tile order across each line 75 | #define DS_TILE_ZIGZAG 0x80 ///< Tile order reverses between lines 76 | #define DS_TILE_SEQUENCE 0x80 ///< Bitmask for tile line order 77 | 78 | /** 79 | * @brief Class for using DotStar matrices with the GFX graphics library. 80 | */ 81 | class Adafruit_DotStarMatrix : public Adafruit_GFX, public Adafruit_DotStar { 82 | 83 | public: 84 | /** 85 | * @brief Construct a single (non-tiled) matrix using hardware SPI out. 86 | * @param w Matrix width in pixels. 87 | * @param h Matrix height in pixels. 88 | * @param matrixType Matrix layout - add together DS_MATRIX_* values 89 | * to declare orientation, rotation, etc. 90 | * @param ledType DotStar LED type, similar to Adafruit_DotStar 91 | * constructor (e.g. DOTSTAR_RGB). 92 | */ 93 | Adafruit_DotStarMatrix(int w, int h, uint8_t matrixType, uint8_t ledType); 94 | 95 | /** 96 | * @brief Construct a single (non-tiled) matrix using software (bitbang) 97 | * SPI out. 98 | * @param w Matrix width in pixels. 99 | * @param h Matrix height in pixels. 100 | * @param d Arduino pin number for SPI data out. 101 | * @param c Arduino pin number for SPI clock out. 102 | * @param matrixType Matrix layout - add together DS_MATRIX_* values 103 | * to declare orientation, rotation, etc. 104 | * @param ledType DotStar LED type, similar to Adafruit_DotStar 105 | * constructor (e.g. DOTSTAR_RGB). 106 | */ 107 | Adafruit_DotStarMatrix(int w, int h, uint8_t d, uint8_t c, uint8_t matrixType, 108 | uint8_t ledType); 109 | 110 | /** 111 | * @brief Construct a tiled matrix using hardware SPI out. 112 | * @param matrixW Individual sub-matrix (tile) width in pixels. 113 | * @param matrixH Individual sub-matrix (tile) height in pixels. 114 | * @param tX Number of tiles on the X (horizontal) axis. 115 | * @param tY Number of tiles on the Y (vertical) axis. 116 | * @param matrixType Tiled matrix layout - add together DS_MATRIX_* and 117 | * DS_TILE_* values to declare orientation, rotation, 118 | * etc. 119 | * @param ledType DotStar LED type, similar to Adafruit_DotStar 120 | * constructor (e.g. DOTSTAR_RGB). 121 | */ 122 | Adafruit_DotStarMatrix(uint8_t matrixW, uint8_t matrixH, uint8_t tX, 123 | uint8_t tY, uint8_t matrixType, uint8_t ledType); 124 | 125 | /** 126 | * @brief Construct a tiled matrix using software (bitbang) SPI out. 127 | * @param matrixW Individual sub-matrix (tile) width in pixels. 128 | * @param matrixH Individual sub-matrix (tile) height in pixels. 129 | * @param tX Number of tiles on the X (horizontal) axis. 130 | * @param tY Number of tiles on the Y (vertical) axis. 131 | * @param d Arduino pin number for SPI data out. 132 | * @param c Arduino pin number for SPI clock out. 133 | * @param matrixType Tiled matrix layout - add together DS_MATRIX_* and 134 | * DS_TILE_* values to declare orientation, rotation, 135 | * etc. 136 | * @param ledType DotStar LED type, similar to Adafruit_DotStar 137 | * constructor (e.g. DOTSTAR_RGB). 138 | */ 139 | // Constructor for tiled matrices w/bitbang SPI: 140 | Adafruit_DotStarMatrix(uint8_t matrixW, uint8_t matrixH, uint8_t tX, 141 | uint8_t tY, uint8_t d, uint8_t c, uint8_t matrixType, 142 | uint8_t ledType); 143 | 144 | /** 145 | * @brief Pixel-drawing function for Adafruit_GFX. 146 | * @param x Pixel column (0 = left edge, unless rotation used). 147 | * @param y Pixel row (0 = top edge, unless rotation used). 148 | * @param color Pixel color in 16-bit '565' RGB format. 149 | */ 150 | void drawPixel(int16_t x, int16_t y, uint16_t color); 151 | 152 | /** 153 | * @brief Fill matrix with a single color. 154 | * @param color Pixel color in 16-bit '565' RGB format. 155 | */ 156 | void fillScreen(uint16_t color); 157 | 158 | /** 159 | * @brief Pass-through is a kludge that lets you override the current 160 | * drawing color with a 'raw' RGB (or RGBW) value that's issued 161 | * directly to pixel(s), side-stepping the 16-bit color limitation 162 | * of Adafruit_GFX. This is not without some limitations of its 163 | * own -- for example, it won't work in conjunction with the 164 | * background color feature when drawing text or bitmaps (you'll 165 | * just get a solid rect of color), only 'transparent' 166 | * text/bitmaps. Also, no gamma correction. 167 | * Remember to UNSET the passthrough color immediately when done 168 | * with it (call with no value)! 169 | * @param c Pixel color in packed 32-bit 0RGB or WRGB format. 170 | */ 171 | void setPassThruColor(uint32_t c); 172 | 173 | /** 174 | * @brief Stop using pass-through color, return to normal 16-bit color 175 | * usage. 176 | */ 177 | void setPassThruColor(void); 178 | 179 | /** 180 | * @brief Register a function for mapping X/Y coordinates to absolute 181 | * pixel indices (for unusual layouts if if DS_MATRIX_* and 182 | * DS_TILE_* settings do not provide sufficient control). 183 | * @param fn Pointer to function that accepts two uint16_t arguments 184 | * (column and row), returns absolute pixel index. 185 | */ 186 | void setRemapFunction(uint16_t (*fn)(uint16_t, uint16_t)); 187 | 188 | /** 189 | * @brief Quantize a 24-bit RGB color value to 16-bit '565' format. 190 | * @param r Red component (0 to 255). 191 | * @param g Green component (0 to 255). 192 | * @param b Blue component (0 to 255). 193 | * @return uint16_t Quantized color for GFX drawing functions. 194 | */ 195 | static uint16_t Color(uint8_t r, uint8_t g, uint8_t b); 196 | 197 | private: 198 | const uint8_t type; 199 | const uint8_t matrixWidth, matrixHeight, tilesX, tilesY; 200 | uint16_t (*remapFn)(uint16_t x, uint16_t y); 201 | 202 | uint32_t passThruColor; 203 | boolean passThruFlag = false; 204 | }; 205 | 206 | #endif // _ADAFRUIT_DSMATRIX_H_ 207 | -------------------------------------------------------------------------------- /COPYING: -------------------------------------------------------------------------------- 1 | 2 | GNU GENERAL PUBLIC LICENSE 3 | Version 3, 29 June 2007 4 | 5 | Copyright (C) 2007 Free Software Foundation, Inc. 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | Preamble 10 | 11 | The GNU General Public License is a free, copyleft license for 12 | software and other kinds of works. 13 | 14 | The licenses for most software and other practical works are designed 15 | to take away your freedom to share and change the works. By contrast, 16 | the GNU General Public License is intended to guarantee your freedom to 17 | share and change all versions of a program--to make sure it remains free 18 | software for all its users. We, the Free Software Foundation, use the 19 | GNU General Public License for most of our software; it applies also to 20 | any other work released this way by its authors. You can apply it to 21 | your programs, too. 22 | 23 | When we speak of free software, we are referring to freedom, not 24 | price. Our General Public Licenses are designed to make sure that you 25 | have the freedom to distribute copies of free software (and charge for 26 | them if you wish), that you receive source code or can get it if you 27 | want it, that you can change the software or use pieces of it in new 28 | free programs, and that you know you can do these things. 29 | 30 | To protect your rights, we need to prevent others from denying you 31 | these rights or asking you to surrender the rights. Therefore, you have 32 | certain responsibilities if you distribute copies of the software, or if 33 | you modify it: responsibilities to respect the freedom of others. 34 | 35 | For example, if you distribute copies of such a program, whether 36 | gratis or for a fee, you must pass on to the recipients the same 37 | freedoms that you received. You must make sure that they, too, receive 38 | or can get the source code. And you must show them these terms so they 39 | know their rights. 40 | 41 | Developers that use the GNU GPL protect your rights with two steps: 42 | (1) assert copyright on the software, and (2) offer you this License 43 | giving you legal permission to copy, distribute and/or modify it. 44 | 45 | For the developers' and authors' protection, the GPL clearly explains 46 | that there is no warranty for this free software. For both users' and 47 | authors' sake, the GPL requires that modified versions be marked as 48 | changed, so that their problems will not be attributed erroneously to 49 | authors of previous versions. 50 | 51 | Some devices are designed to deny users access to install or run 52 | modified versions of the software inside them, although the manufacturer 53 | can do so. This is fundamentally incompatible with the aim of 54 | protecting users' freedom to change the software. The systematic 55 | pattern of such abuse occurs in the area of products for individuals to 56 | use, which is precisely where it is most unacceptable. Therefore, we 57 | have designed this version of the GPL to prohibit the practice for those 58 | products. If such problems arise substantially in other domains, we 59 | stand ready to extend this provision to those domains in future versions 60 | of the GPL, as needed to protect the freedom of users. 61 | 62 | Finally, every program is threatened constantly by software patents. 63 | States should not allow patents to restrict development and use of 64 | software on general-purpose computers, but in those that do, we wish to 65 | avoid the special danger that patents applied to a free program could 66 | make it effectively proprietary. To prevent this, the GPL assures that 67 | patents cannot be used to render the program non-free. 68 | 69 | The precise terms and conditions for copying, distribution and 70 | modification follow. 71 | 72 | TERMS AND CONDITIONS 73 | 74 | 0. Definitions. 75 | 76 | "This License" refers to version 3 of the GNU General Public License. 77 | 78 | "Copyright" also means copyright-like laws that apply to other kinds of 79 | works, such as semiconductor masks. 80 | 81 | "The Program" refers to any copyrightable work licensed under this 82 | License. Each licensee is addressed as "you". "Licensees" and 83 | "recipients" may be individuals or organizations. 84 | 85 | To "modify" a work means to copy from or adapt all or part of the work 86 | in a fashion requiring copyright permission, other than the making of an 87 | exact copy. The resulting work is called a "modified version" of the 88 | earlier work or a work "based on" the earlier work. 89 | 90 | A "covered work" means either the unmodified Program or a work based 91 | on the Program. 92 | 93 | To "propagate" a work means to do anything with it that, without 94 | permission, would make you directly or secondarily liable for 95 | infringement under applicable copyright law, except executing it on a 96 | computer or modifying a private copy. Propagation includes copying, 97 | distribution (with or without modification), making available to the 98 | public, and in some countries other activities as well. 99 | 100 | To "convey" a work means any kind of propagation that enables other 101 | parties to make or receive copies. Mere interaction with a user through 102 | a computer network, with no transfer of a copy, is not conveying. 103 | 104 | An interactive user interface displays "Appropriate Legal Notices" 105 | to the extent that it includes a convenient and prominently visible 106 | feature that (1) displays an appropriate copyright notice, and (2) 107 | tells the user that there is no warranty for the work (except to the 108 | extent that warranties are provided), that licensees may convey the 109 | work under this License, and how to view a copy of this License. If 110 | the interface presents a list of user commands or options, such as a 111 | menu, a prominent item in the list meets this criterion. 112 | 113 | 1. Source Code. 114 | 115 | The "source code" for a work means the preferred form of the work 116 | for making modifications to it. "Object code" means any non-source 117 | form of a work. 118 | 119 | A "Standard Interface" means an interface that either is an official 120 | standard defined by a recognized standards body, or, in the case of 121 | interfaces specified for a particular programming language, one that 122 | is widely used among developers working in that language. 123 | 124 | The "System Libraries" of an executable work include anything, other 125 | than the work as a whole, that (a) is included in the normal form of 126 | packaging a Major Component, but which is not part of that Major 127 | Component, and (b) serves only to enable use of the work with that 128 | Major Component, or to implement a Standard Interface for which an 129 | implementation is available to the public in source code form. A 130 | "Major Component", in this context, means a major essential component 131 | (kernel, window system, and so on) of the specific operating system 132 | (if any) on which the executable work runs, or a compiler used to 133 | produce the work, or an object code interpreter used to run it. 134 | 135 | The "Corresponding Source" for a work in object code form means all 136 | the source code needed to generate, install, and (for an executable 137 | work) run the object code and to modify the work, including scripts to 138 | control those activities. However, it does not include the work's 139 | System Libraries, or general-purpose tools or generally available free 140 | programs which are used unmodified in performing those activities but 141 | which are not part of the work. For example, Corresponding Source 142 | includes interface definition files associated with source files for 143 | the work, and the source code for shared libraries and dynamically 144 | linked subprograms that the work is specifically designed to require, 145 | such as by intimate data communication or control flow between those 146 | subprograms and other parts of the work. 147 | 148 | The Corresponding Source need not include anything that users 149 | can regenerate automatically from other parts of the Corresponding 150 | Source. 151 | 152 | The Corresponding Source for a work in source code form is that 153 | same work. 154 | 155 | 2. Basic Permissions. 156 | 157 | All rights granted under this License are granted for the term of 158 | copyright on the Program, and are irrevocable provided the stated 159 | conditions are met. This License explicitly affirms your unlimited 160 | permission to run the unmodified Program. The output from running a 161 | covered work is covered by this License only if the output, given its 162 | content, constitutes a covered work. This License acknowledges your 163 | rights of fair use or other equivalent, as provided by copyright law. 164 | 165 | You may make, run and propagate covered works that you do not 166 | convey, without conditions so long as your license otherwise remains 167 | in force. You may convey covered works to others for the sole purpose 168 | of having them make modifications exclusively for you, or provide you 169 | with facilities for running those works, provided that you comply with 170 | the terms of this License in conveying all material for which you do 171 | not control copyright. Those thus making or running the covered works 172 | for you must do so exclusively on your behalf, under your direction 173 | and control, on terms that prohibit them from making any copies of 174 | your copyrighted material outside their relationship with you. 175 | 176 | Conveying under any other circumstances is permitted solely under 177 | the conditions stated below. Sublicensing is not allowed; section 10 178 | makes it unnecessary. 179 | 180 | 3. Protecting Users' Legal Rights From Anti-Circumvention Law. 181 | 182 | No covered work shall be deemed part of an effective technological 183 | measure under any applicable law fulfilling obligations under article 184 | 11 of the WIPO copyright treaty adopted on 20 December 1996, or 185 | similar laws prohibiting or restricting circumvention of such 186 | measures. 187 | 188 | When you convey a covered work, you waive any legal power to forbid 189 | circumvention of technological measures to the extent such circumvention 190 | is effected by exercising rights under this License with respect to 191 | the covered work, and you disclaim any intention to limit operation or 192 | modification of the work as a means of enforcing, against the work's 193 | users, your or third parties' legal rights to forbid circumvention of 194 | technological measures. 195 | 196 | 4. Conveying Verbatim Copies. 197 | 198 | You may convey verbatim copies of the Program's source code as you 199 | receive it, in any medium, provided that you conspicuously and 200 | appropriately publish on each copy an appropriate copyright notice; 201 | keep intact all notices stating that this License and any 202 | non-permissive terms added in accord with section 7 apply to the code; 203 | keep intact all notices of the absence of any warranty; and give all 204 | recipients a copy of this License along with the Program. 205 | 206 | You may charge any price or no price for each copy that you convey, 207 | and you may offer support or warranty protection for a fee. 208 | 209 | 5. Conveying Modified Source Versions. 210 | 211 | You may convey a work based on the Program, or the modifications to 212 | produce it from the Program, in the form of source code under the 213 | terms of section 4, provided that you also meet all of these conditions: 214 | 215 | a) The work must carry prominent notices stating that you modified 216 | it, and giving a relevant date. 217 | 218 | b) The work must carry prominent notices stating that it is 219 | released under this License and any conditions added under section 220 | 7. This requirement modifies the requirement in section 4 to 221 | "keep intact all notices". 222 | 223 | c) You must license the entire work, as a whole, under this 224 | License to anyone who comes into possession of a copy. This 225 | License will therefore apply, along with any applicable section 7 226 | additional terms, to the whole of the work, and all its parts, 227 | regardless of how they are packaged. This License gives no 228 | permission to license the work in any other way, but it does not 229 | invalidate such permission if you have separately received it. 230 | 231 | d) If the work has interactive user interfaces, each must display 232 | Appropriate Legal Notices; however, if the Program has interactive 233 | interfaces that do not display Appropriate Legal Notices, your 234 | work need not make them do so. 235 | 236 | A compilation of a covered work with other separate and independent 237 | works, which are not by their nature extensions of the covered work, 238 | and which are not combined with it such as to form a larger program, 239 | in or on a volume of a storage or distribution medium, is called an 240 | "aggregate" if the compilation and its resulting copyright are not 241 | used to limit the access or legal rights of the compilation's users 242 | beyond what the individual works permit. Inclusion of a covered work 243 | in an aggregate does not cause this License to apply to the other 244 | parts of the aggregate. 245 | 246 | 6. Conveying Non-Source Forms. 247 | 248 | You may convey a covered work in object code form under the terms 249 | of sections 4 and 5, provided that you also convey the 250 | machine-readable Corresponding Source under the terms of this License, 251 | in one of these ways: 252 | 253 | a) Convey the object code in, or embodied in, a physical product 254 | (including a physical distribution medium), accompanied by the 255 | Corresponding Source fixed on a durable physical medium 256 | customarily used for software interchange. 257 | 258 | b) Convey the object code in, or embodied in, a physical product 259 | (including a physical distribution medium), accompanied by a 260 | written offer, valid for at least three years and valid for as 261 | long as you offer spare parts or customer support for that product 262 | model, to give anyone who possesses the object code either (1) a 263 | copy of the Corresponding Source for all the software in the 264 | product that is covered by this License, on a durable physical 265 | medium customarily used for software interchange, for a price no 266 | more than your reasonable cost of physically performing this 267 | conveying of source, or (2) access to copy the 268 | Corresponding Source from a network server at no charge. 269 | 270 | c) Convey individual copies of the object code with a copy of the 271 | written offer to provide the Corresponding Source. This 272 | alternative is allowed only occasionally and noncommercially, and 273 | only if you received the object code with such an offer, in accord 274 | with subsection 6b. 275 | 276 | d) Convey the object code by offering access from a designated 277 | place (gratis or for a charge), and offer equivalent access to the 278 | Corresponding Source in the same way through the same place at no 279 | further charge. You need not require recipients to copy the 280 | Corresponding Source along with the object code. If the place to 281 | copy the object code is a network server, the Corresponding Source 282 | may be on a different server (operated by you or a third party) 283 | that supports equivalent copying facilities, provided you maintain 284 | clear directions next to the object code saying where to find the 285 | Corresponding Source. Regardless of what server hosts the 286 | Corresponding Source, you remain obligated to ensure that it is 287 | available for as long as needed to satisfy these requirements. 288 | 289 | e) Convey the object code using peer-to-peer transmission, provided 290 | you inform other peers where the object code and Corresponding 291 | Source of the work are being offered to the general public at no 292 | charge under subsection 6d. 293 | 294 | A separable portion of the object code, whose source code is excluded 295 | from the Corresponding Source as a System Library, need not be 296 | included in conveying the object code work. 297 | 298 | A "User Product" is either (1) a "consumer product", which means any 299 | tangible personal property which is normally used for personal, family, 300 | or household purposes, or (2) anything designed or sold for incorporation 301 | into a dwelling. In determining whether a product is a consumer product, 302 | doubtful cases shall be resolved in favor of coverage. For a particular 303 | product received by a particular user, "normally used" refers to a 304 | typical or common use of that class of product, regardless of the status 305 | of the particular user or of the way in which the particular user 306 | actually uses, or expects or is expected to use, the product. A product 307 | is a consumer product regardless of whether the product has substantial 308 | commercial, industrial or non-consumer uses, unless such uses represent 309 | the only significant mode of use of the product. 310 | 311 | "Installation Information" for a User Product means any methods, 312 | procedures, authorization keys, or other information required to install 313 | and execute modified versions of a covered work in that User Product from 314 | a modified version of its Corresponding Source. The information must 315 | suffice to ensure that the continued functioning of the modified object 316 | code is in no case prevented or interfered with solely because 317 | modification has been made. 318 | 319 | If you convey an object code work under this section in, or with, or 320 | specifically for use in, a User Product, and the conveying occurs as 321 | part of a transaction in which the right of possession and use of the 322 | User Product is transferred to the recipient in perpetuity or for a 323 | fixed term (regardless of how the transaction is characterized), the 324 | Corresponding Source conveyed under this section must be accompanied 325 | by the Installation Information. But this requirement does not apply 326 | if neither you nor any third party retains the ability to install 327 | modified object code on the User Product (for example, the work has 328 | been installed in ROM). 329 | 330 | The requirement to provide Installation Information does not include a 331 | requirement to continue to provide support service, warranty, or updates 332 | for a work that has been modified or installed by the recipient, or for 333 | the User Product in which it has been modified or installed. Access to a 334 | network may be denied when the modification itself materially and 335 | adversely affects the operation of the network or violates the rules and 336 | protocols for communication across the network. 337 | 338 | Corresponding Source conveyed, and Installation Information provided, 339 | in accord with this section must be in a format that is publicly 340 | documented (and with an implementation available to the public in 341 | source code form), and must require no special password or key for 342 | unpacking, reading or copying. 343 | 344 | 7. Additional Terms. 345 | 346 | "Additional permissions" are terms that supplement the terms of this 347 | License by making exceptions from one or more of its conditions. 348 | Additional permissions that are applicable to the entire Program shall 349 | be treated as though they were included in this License, to the extent 350 | that they are valid under applicable law. If additional permissions 351 | apply only to part of the Program, that part may be used separately 352 | under those permissions, but the entire Program remains governed by 353 | this License without regard to the additional permissions. 354 | 355 | When you convey a copy of a covered work, you may at your option 356 | remove any additional permissions from that copy, or from any part of 357 | it. (Additional permissions may be written to require their own 358 | removal in certain cases when you modify the work.) You may place 359 | additional permissions on material, added by you to a covered work, 360 | for which you have or can give appropriate copyright permission. 361 | 362 | Notwithstanding any other provision of this License, for material you 363 | add to a covered work, you may (if authorized by the copyright holders of 364 | that material) supplement the terms of this License with terms: 365 | 366 | a) Disclaiming warranty or limiting liability differently from the 367 | terms of sections 15 and 16 of this License; or 368 | 369 | b) Requiring preservation of specified reasonable legal notices or 370 | author attributions in that material or in the Appropriate Legal 371 | Notices displayed by works containing it; or 372 | 373 | c) Prohibiting misrepresentation of the origin of that material, or 374 | requiring that modified versions of such material be marked in 375 | reasonable ways as different from the original version; or 376 | 377 | d) Limiting the use for publicity purposes of names of licensors or 378 | authors of the material; or 379 | 380 | e) Declining to grant rights under trademark law for use of some 381 | trade names, trademarks, or service marks; or 382 | 383 | f) Requiring indemnification of licensors and authors of that 384 | material by anyone who conveys the material (or modified versions of 385 | it) with contractual assumptions of liability to the recipient, for 386 | any liability that these contractual assumptions directly impose on 387 | those licensors and authors. 388 | 389 | All other non-permissive additional terms are considered "further 390 | restrictions" within the meaning of section 10. If the Program as you 391 | received it, or any part of it, contains a notice stating that it is 392 | governed by this License along with a term that is a further 393 | restriction, you may remove that term. If a license document contains 394 | a further restriction but permits relicensing or conveying under this 395 | License, you may add to a covered work material governed by the terms 396 | of that license document, provided that the further restriction does 397 | not survive such relicensing or conveying. 398 | 399 | If you add terms to a covered work in accord with this section, you 400 | must place, in the relevant source files, a statement of the 401 | additional terms that apply to those files, or a notice indicating 402 | where to find the applicable terms. 403 | 404 | Additional terms, permissive or non-permissive, may be stated in the 405 | form of a separately written license, or stated as exceptions; 406 | the above requirements apply either way. 407 | 408 | 8. Termination. 409 | 410 | You may not propagate or modify a covered work except as expressly 411 | provided under this License. Any attempt otherwise to propagate or 412 | modify it is void, and will automatically terminate your rights under 413 | this License (including any patent licenses granted under the third 414 | paragraph of section 11). 415 | 416 | However, if you cease all violation of this License, then your 417 | license from a particular copyright holder is reinstated (a) 418 | provisionally, unless and until the copyright holder explicitly and 419 | finally terminates your license, and (b) permanently, if the copyright 420 | holder fails to notify you of the violation by some reasonable means 421 | prior to 60 days after the cessation. 422 | 423 | Moreover, your license from a particular copyright holder is 424 | reinstated permanently if the copyright holder notifies you of the 425 | violation by some reasonable means, this is the first time you have 426 | received notice of violation of this License (for any work) from that 427 | copyright holder, and you cure the violation prior to 30 days after 428 | your receipt of the notice. 429 | 430 | Termination of your rights under this section does not terminate the 431 | licenses of parties who have received copies or rights from you under 432 | this License. If your rights have been terminated and not permanently 433 | reinstated, you do not qualify to receive new licenses for the same 434 | material under section 10. 435 | 436 | 9. Acceptance Not Required for Having Copies. 437 | 438 | You are not required to accept this License in order to receive or 439 | run a copy of the Program. Ancillary propagation of a covered work 440 | occurring solely as a consequence of using peer-to-peer transmission 441 | to receive a copy likewise does not require acceptance. However, 442 | nothing other than this License grants you permission to propagate or 443 | modify any covered work. These actions infringe copyright if you do 444 | not accept this License. Therefore, by modifying or propagating a 445 | covered work, you indicate your acceptance of this License to do so. 446 | 447 | 10. Automatic Licensing of Downstream Recipients. 448 | 449 | Each time you convey a covered work, the recipient automatically 450 | receives a license from the original licensors, to run, modify and 451 | propagate that work, subject to this License. You are not responsible 452 | for enforcing compliance by third parties with this License. 453 | 454 | An "entity transaction" is a transaction transferring control of an 455 | organization, or substantially all assets of one, or subdividing an 456 | organization, or merging organizations. If propagation of a covered 457 | work results from an entity transaction, each party to that 458 | transaction who receives a copy of the work also receives whatever 459 | licenses to the work the party's predecessor in interest had or could 460 | give under the previous paragraph, plus a right to possession of the 461 | Corresponding Source of the work from the predecessor in interest, if 462 | the predecessor has it or can get it with reasonable efforts. 463 | 464 | You may not impose any further restrictions on the exercise of the 465 | rights granted or affirmed under this License. For example, you may 466 | not impose a license fee, royalty, or other charge for exercise of 467 | rights granted under this License, and you may not initiate litigation 468 | (including a cross-claim or counterclaim in a lawsuit) alleging that 469 | any patent claim is infringed by making, using, selling, offering for 470 | sale, or importing the Program or any portion of it. 471 | 472 | 11. Patents. 473 | 474 | A "contributor" is a copyright holder who authorizes use under this 475 | License of the Program or a work on which the Program is based. The 476 | work thus licensed is called the contributor's "contributor version". 477 | 478 | A contributor's "essential patent claims" are all patent claims 479 | owned or controlled by the contributor, whether already acquired or 480 | hereafter acquired, that would be infringed by some manner, permitted 481 | by this License, of making, using, or selling its contributor version, 482 | but do not include claims that would be infringed only as a 483 | consequence of further modification of the contributor version. For 484 | purposes of this definition, "control" includes the right to grant 485 | patent sublicenses in a manner consistent with the requirements of 486 | this License. 487 | 488 | Each contributor grants you a non-exclusive, worldwide, royalty-free 489 | patent license under the contributor's essential patent claims, to 490 | make, use, sell, offer for sale, import and otherwise run, modify and 491 | propagate the contents of its contributor version. 492 | 493 | In the following three paragraphs, a "patent license" is any express 494 | agreement or commitment, however denominated, not to enforce a patent 495 | (such as an express permission to practice a patent or covenant not to 496 | sue for patent infringement). To "grant" such a patent license to a 497 | party means to make such an agreement or commitment not to enforce a 498 | patent against the party. 499 | 500 | If you convey a covered work, knowingly relying on a patent license, 501 | and the Corresponding Source of the work is not available for anyone 502 | to copy, free of charge and under the terms of this License, through a 503 | publicly available network server or other readily accessible means, 504 | then you must either (1) cause the Corresponding Source to be so 505 | available, or (2) arrange to deprive yourself of the benefit of the 506 | patent license for this particular work, or (3) arrange, in a manner 507 | consistent with the requirements of this License, to extend the patent 508 | license to downstream recipients. "Knowingly relying" means you have 509 | actual knowledge that, but for the patent license, your conveying the 510 | covered work in a country, or your recipient's use of the covered work 511 | in a country, would infringe one or more identifiable patents in that 512 | country that you have reason to believe are valid. 513 | 514 | If, pursuant to or in connection with a single transaction or 515 | arrangement, you convey, or propagate by procuring conveyance of, a 516 | covered work, and grant a patent license to some of the parties 517 | receiving the covered work authorizing them to use, propagate, modify 518 | or convey a specific copy of the covered work, then the patent license 519 | you grant is automatically extended to all recipients of the covered 520 | work and works based on it. 521 | 522 | A patent license is "discriminatory" if it does not include within 523 | the scope of its coverage, prohibits the exercise of, or is 524 | conditioned on the non-exercise of one or more of the rights that are 525 | specifically granted under this License. You may not convey a covered 526 | work if you are a party to an arrangement with a third party that is 527 | in the business of distributing software, under which you make payment 528 | to the third party based on the extent of your activity of conveying 529 | the work, and under which the third party grants, to any of the 530 | parties who would receive the covered work from you, a discriminatory 531 | patent license (a) in connection with copies of the covered work 532 | conveyed by you (or copies made from those copies), or (b) primarily 533 | for and in connection with specific products or compilations that 534 | contain the covered work, unless you entered into that arrangement, 535 | or that patent license was granted, prior to 28 March 2007. 536 | 537 | Nothing in this License shall be construed as excluding or limiting 538 | any implied license or other defenses to infringement that may 539 | otherwise be available to you under applicable patent law. 540 | 541 | 12. No Surrender of Others' Freedom. 542 | 543 | If conditions are imposed on you (whether by court order, agreement or 544 | otherwise) that contradict the conditions of this License, they do not 545 | excuse you from the conditions of this License. If you cannot convey a 546 | covered work so as to satisfy simultaneously your obligations under this 547 | License and any other pertinent obligations, then as a consequence you may 548 | not convey it at all. For example, if you agree to terms that obligate you 549 | to collect a royalty for further conveying from those to whom you convey 550 | the Program, the only way you could satisfy both those terms and this 551 | License would be to refrain entirely from conveying the Program. 552 | 553 | 13. Use with the GNU Affero General Public License. 554 | 555 | Notwithstanding any other provision of this License, you have 556 | permission to link or combine any covered work with a work licensed 557 | under version 3 of the GNU Affero General Public License into a single 558 | combined work, and to convey the resulting work. The terms of this 559 | License will continue to apply to the part which is the covered work, 560 | but the special requirements of the GNU Affero General Public License, 561 | section 13, concerning interaction through a network will apply to the 562 | combination as such. 563 | 564 | 14. Revised Versions of this License. 565 | 566 | The Free Software Foundation may publish revised and/or new versions of 567 | the GNU General Public License from time to time. Such new versions will 568 | be similar in spirit to the present version, but may differ in detail to 569 | address new problems or concerns. 570 | 571 | Each version is given a distinguishing version number. If the 572 | Program specifies that a certain numbered version of the GNU General 573 | Public License "or any later version" applies to it, you have the 574 | option of following the terms and conditions either of that numbered 575 | version or of any later version published by the Free Software 576 | Foundation. If the Program does not specify a version number of the 577 | GNU General Public License, you may choose any version ever published 578 | by the Free Software Foundation. 579 | 580 | If the Program specifies that a proxy can decide which future 581 | versions of the GNU General Public License can be used, that proxy's 582 | public statement of acceptance of a version permanently authorizes you 583 | to choose that version for the Program. 584 | 585 | Later license versions may give you additional or different 586 | permissions. However, no additional obligations are imposed on any 587 | author or copyright holder as a result of your choosing to follow a 588 | later version. 589 | 590 | 15. Disclaimer of Warranty. 591 | 592 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 593 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 594 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 595 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 596 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 597 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 598 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 599 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 600 | 601 | 16. Limitation of Liability. 602 | 603 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 604 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 605 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 606 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 607 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 608 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 609 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 610 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 611 | SUCH DAMAGES. 612 | 613 | 17. Interpretation of Sections 15 and 16. 614 | 615 | If the disclaimer of warranty and limitation of liability provided 616 | above cannot be given local legal effect according to their terms, 617 | reviewing courts shall apply local law that most closely approximates 618 | an absolute waiver of all civil liability in connection with the 619 | Program, unless a warranty or assumption of liability accompanies a 620 | copy of the Program in return for a fee. 621 | 622 | END OF TERMS AND CONDITIONS 623 | 624 | 625 | 626 | LGPL ADDENDUM: 627 | 628 | 629 | 630 | GNU LESSER GENERAL PUBLIC LICENSE 631 | Version 3, 29 June 2007 632 | 633 | Copyright (C) 2007 Free Software Foundation, Inc. 634 | Everyone is permitted to copy and distribute verbatim copies 635 | of this license document, but changing it is not allowed. 636 | 637 | 638 | This version of the GNU Lesser General Public License incorporates 639 | the terms and conditions of version 3 of the GNU General Public 640 | License, supplemented by the additional permissions listed below. 641 | 642 | 0. Additional Definitions. 643 | 644 | As used herein, "this License" refers to version 3 of the GNU Lesser 645 | General Public License, and the "GNU GPL" refers to version 3 of the GNU 646 | General Public License. 647 | 648 | "The Library" refers to a covered work governed by this License, 649 | other than an Application or a Combined Work as defined below. 650 | 651 | An "Application" is any work that makes use of an interface provided 652 | by the Library, but which is not otherwise based on the Library. 653 | Defining a subclass of a class defined by the Library is deemed a mode 654 | of using an interface provided by the Library. 655 | 656 | A "Combined Work" is a work produced by combining or linking an 657 | Application with the Library. The particular version of the Library 658 | with which the Combined Work was made is also called the "Linked 659 | Version". 660 | 661 | The "Minimal Corresponding Source" for a Combined Work means the 662 | Corresponding Source for the Combined Work, excluding any source code 663 | for portions of the Combined Work that, considered in isolation, are 664 | based on the Application, and not on the Linked Version. 665 | 666 | The "Corresponding Application Code" for a Combined Work means the 667 | object code and/or source code for the Application, including any data 668 | and utility programs needed for reproducing the Combined Work from the 669 | Application, but excluding the System Libraries of the Combined Work. 670 | 671 | 1. Exception to Section 3 of the GNU GPL. 672 | 673 | You may convey a covered work under sections 3 and 4 of this License 674 | without being bound by section 3 of the GNU GPL. 675 | 676 | 2. Conveying Modified Versions. 677 | 678 | If you modify a copy of the Library, and, in your modifications, a 679 | facility refers to a function or data to be supplied by an Application 680 | that uses the facility (other than as an argument passed when the 681 | facility is invoked), then you may convey a copy of the modified 682 | version: 683 | 684 | a) under this License, provided that you make a good faith effort to 685 | ensure that, in the event an Application does not supply the 686 | function or data, the facility still operates, and performs 687 | whatever part of its purpose remains meaningful, or 688 | 689 | b) under the GNU GPL, with none of the additional permissions of 690 | this License applicable to that copy. 691 | 692 | 3. Object Code Incorporating Material from Library Header Files. 693 | 694 | The object code form of an Application may incorporate material from 695 | a header file that is part of the Library. You may convey such object 696 | code under terms of your choice, provided that, if the incorporated 697 | material is not limited to numerical parameters, data structure 698 | layouts and accessors, or small macros, inline functions and templates 699 | (ten or fewer lines in length), you do both of the following: 700 | 701 | a) Give prominent notice with each copy of the object code that the 702 | Library is used in it and that the Library and its use are 703 | covered by this License. 704 | 705 | b) Accompany the object code with a copy of the GNU GPL and this license 706 | document. 707 | 708 | 4. Combined Works. 709 | 710 | You may convey a Combined Work under terms of your choice that, 711 | taken together, effectively do not restrict modification of the 712 | portions of the Library contained in the Combined Work and reverse 713 | engineering for debugging such modifications, if you also do each of 714 | the following: 715 | 716 | a) Give prominent notice with each copy of the Combined Work that 717 | the Library is used in it and that the Library and its use are 718 | covered by this License. 719 | 720 | b) Accompany the Combined Work with a copy of the GNU GPL and this license 721 | document. 722 | 723 | c) For a Combined Work that displays copyright notices during 724 | execution, include the copyright notice for the Library among 725 | these notices, as well as a reference directing the user to the 726 | copies of the GNU GPL and this license document. 727 | 728 | d) Do one of the following: 729 | 730 | 0) Convey the Minimal Corresponding Source under the terms of this 731 | License, and the Corresponding Application Code in a form 732 | suitable for, and under terms that permit, the user to 733 | recombine or relink the Application with a modified version of 734 | the Linked Version to produce a modified Combined Work, in the 735 | manner specified by section 6 of the GNU GPL for conveying 736 | Corresponding Source. 737 | 738 | 1) Use a suitable shared library mechanism for linking with the 739 | Library. A suitable mechanism is one that (a) uses at run time 740 | a copy of the Library already present on the user's computer 741 | system, and (b) will operate properly with a modified version 742 | of the Library that is interface-compatible with the Linked 743 | Version. 744 | 745 | e) Provide Installation Information, but only if you would otherwise 746 | be required to provide such information under section 6 of the 747 | GNU GPL, and only to the extent that such information is 748 | necessary to install and execute a modified version of the 749 | Combined Work produced by recombining or relinking the 750 | Application with a modified version of the Linked Version. (If 751 | you use option 4d0, the Installation Information must accompany 752 | the Minimal Corresponding Source and Corresponding Application 753 | Code. If you use option 4d1, you must provide the Installation 754 | Information in the manner specified by section 6 of the GNU GPL 755 | for conveying Corresponding Source.) 756 | 757 | 5. Combined Libraries. 758 | 759 | You may place library facilities that are a work based on the 760 | Library side by side in a single library together with other library 761 | facilities that are not Applications and are not covered by this 762 | License, and convey such a combined library under terms of your 763 | choice, if you do both of the following: 764 | 765 | a) Accompany the combined library with a copy of the same work based 766 | on the Library, uncombined with any other library facilities, 767 | conveyed under the terms of this License. 768 | 769 | b) Give prominent notice with the combined library that part of it 770 | is a work based on the Library, and explaining where to find the 771 | accompanying uncombined form of the same work. 772 | 773 | 6. Revised Versions of the GNU Lesser General Public License. 774 | 775 | The Free Software Foundation may publish revised and/or new versions 776 | of the GNU Lesser General Public License from time to time. Such new 777 | versions will be similar in spirit to the present version, but may 778 | differ in detail to address new problems or concerns. 779 | 780 | Each version is given a distinguishing version number. If the 781 | Library as you received it specifies that a certain numbered version 782 | of the GNU Lesser General Public License "or any later version" 783 | applies to it, you have the option of following the terms and 784 | conditions either of that published version or of any later version 785 | published by the Free Software Foundation. If the Library as you 786 | received it does not specify a version number of the GNU Lesser 787 | General Public License, you may choose any version of the GNU Lesser 788 | General Public License ever published by the Free Software Foundation. 789 | 790 | If the Library as you received it specifies that a proxy can decide 791 | whether future versions of the GNU Lesser General Public License shall 792 | apply, that proxy's public statement of acceptance of any version is 793 | permanent authorization for you to choose that version for the 794 | Library. 795 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Adafruit_DotStarMatrix. [![Build Status](https://github.com/adafruit/Adafruit_DotStarMatrix/workflows/Arduino%20Library%20CI/badge.svg)](https://github.com/adafruit/Adafruit_DotStarMatrix/actions) 2 | 3 | Adafruit_GFX-compatible library for DotStar matrices and grids. Controls single and tiled DotStar matrices or grids assembled from DotStar LED strip. Requires Adafruit_DotStar and Adafruit_GFX libraries. 4 | 5 | After downloading, rename folder to 'Adafruit_DotStarMatrix' and install in Arduino Libraries folder. Restart Arduino IDE, then open File->Sketchbook->Library->Adafruit_DotStarMatrix->matrixtest sketch. 6 | -------------------------------------------------------------------------------- /examples/dotstar_wing/dotstar_wing.ino: -------------------------------------------------------------------------------- 1 | // Adafruit_DotStarMatrix example for single DotStar LED matrix. 2 | // Scrolls 'Adafruit' across the matrix. 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | 10 | #if defined(ESP8266) 11 | #define DATAPIN 13 12 | #define CLOCKPIN 14 13 | #elif defined(ARDUINO_ADAFRUIT_FEATHER_ESP32C6) 14 | #define DATAPIN 0 15 | #define CLOCKPIN 15 16 | #elif defined(__AVR_ATmega328P__) 17 | #define DATAPIN 2 18 | #define CLOCKPIN 4 19 | #elif defined(ARDUINO_NRF52832_FEATHER) 20 | #define DATAPIN 7 21 | #define CLOCKPIN 16 22 | #elif defined(TEENSYDUINO) 23 | #define DATAPIN 9 24 | #define CLOCKPIN 5 25 | #elif defined(ARDUINO_ARCH_WICED) 26 | #define DATAPIN PA4 27 | #define CLOCKPIN PB5 28 | #elif defined(ESP32) && !defined(ARDUINO_ADAFRUIT_FEATHER_ESP32S2) 29 | #define DATAPIN 27 30 | #define CLOCKPIN 13 31 | #else // // 32u4, M0, M4, esp32-s2, nrf52840 and 328p 32 | #define DATAPIN 11 33 | #define CLOCKPIN 13 34 | #endif 35 | 36 | #define SHIFTDELAY 100 37 | #define BRIGHTNESS 20 38 | 39 | // MATRIX DECLARATION: 40 | // Parameter 1 = width of DotStar matrix 41 | // Parameter 2 = height of matrix 42 | // Parameter 3 = pin number (most are valid) 43 | // Parameter 4 = matrix layout flags, add together as needed: 44 | // DS_MATRIX_TOP, DS_MATRIX_BOTTOM, DS_MATRIX_LEFT, DS_MATRIX_RIGHT: 45 | // Position of the FIRST LED in the matrix; pick two, e.g. 46 | // DS_MATRIX_TOP + DS_MATRIX_LEFT for the top-left corner. 47 | // DS_MATRIX_ROWS, DS_MATRIX_COLUMNS: LEDs are arranged in horizontal 48 | // rows or in vertical columns, respectively; pick one or the other. 49 | // DS_MATRIX_PROGRESSIVE, DS_MATRIX_ZIGZAG: all rows/columns proceed 50 | // in the same order, or alternate lines reverse direction; pick one. 51 | // See example below for these values in action. 52 | // Parameter 5 = pixel type: 53 | // DOTSTAR_BRG Pixels are wired for BRG bitstream (most DotStar items) 54 | // DOTSTAR_GBR Pixels are wired for GBR bitstream (some older DotStars) 55 | // DOTSTAR_BGR Pixels are wired for BGR bitstream (APA102-2020 DotStars) 56 | 57 | Adafruit_DotStarMatrix matrix = Adafruit_DotStarMatrix( 58 | 12, 6, DATAPIN, CLOCKPIN, 59 | DS_MATRIX_BOTTOM + DS_MATRIX_LEFT + 60 | DS_MATRIX_ROWS + DS_MATRIX_PROGRESSIVE, 61 | DOTSTAR_BGR); 62 | 63 | const uint16_t primaryColors[] = { 64 | matrix.Color(255, 0, 0), matrix.Color(0, 255, 0), matrix.Color(0, 0, 255) 65 | }; 66 | 67 | const uint16_t adaColors[] = { 68 | matrix.Color(255, 0, 0), //A red 69 | matrix.Color(255, 125, 0), //D orange 70 | matrix.Color(200, 255, 0), //A yellowish 71 | matrix.Color(0, 255, 0), //F green 72 | matrix.Color(0, 255, 225), //R blue 73 | matrix.Color(150, 0, 255), //U purple 74 | matrix.Color(255, 0, 220), //I pink 75 | matrix.Color(255, 65, 0), //T reddish 76 | matrix.Color(255, 220, 0) //! orange/yellow 77 | }; 78 | 79 | char adafruit[] = "ADAFRUIT!"; 80 | 81 | void setup() { 82 | Serial.begin(115200); 83 | 84 | // uncomment to have wait 85 | //while (!Serial) delay(500); 86 | 87 | Serial.println("\nDotstar Matrix Wing"); 88 | matrix.begin(); 89 | matrix.setFont(&TomThumb); 90 | matrix.setTextWrap(false); 91 | matrix.setBrightness(BRIGHTNESS); 92 | 93 | for (byte i = 0; i < 3; i++) { 94 | matrix.fillScreen(primaryColors[i]); 95 | matrix.show(); 96 | delay(500); 97 | } 98 | } 99 | 100 | int x = matrix.width(); 101 | int pass = 0; 102 | 103 | void loop() { 104 | matrix.fillScreen(0); 105 | matrix.setCursor(x, 5); 106 | for (byte i = 0; i < strlen(adafruit); i++) { 107 | // set the color 108 | matrix.setTextColor(adaColors[i]); 109 | // write the letter 110 | matrix.print(adafruit[i]); 111 | } 112 | 113 | if (--x < -50) { 114 | x = matrix.width(); 115 | } 116 | 117 | matrix.show(); 118 | delay(SHIFTDELAY); 119 | } 120 | -------------------------------------------------------------------------------- /examples/matrixtest/matrixtest.pde: -------------------------------------------------------------------------------- 1 | // Adafruit_DotStarMatrix example for single DotStar LED matrix. 2 | // Scrolls 'Howdy' across the matrix. 3 | 4 | #include 5 | #include 6 | #include 7 | #include 8 | #ifndef PSTR 9 | #define PSTR // Make Arduino Due happy 10 | #endif 11 | 12 | #define DATAPIN 4 13 | #define CLOCKPIN 5 14 | 15 | // MATRIX DECLARATION: 16 | // Parameter 1 = width of DotStar matrix 17 | // Parameter 2 = height of matrix 18 | // Parameter 3 = pin number (most are valid) 19 | // Parameter 4 = matrix layout flags, add together as needed: 20 | // DS_MATRIX_TOP, DS_MATRIX_BOTTOM, DS_MATRIX_LEFT, DS_MATRIX_RIGHT: 21 | // Position of the FIRST LED in the matrix; pick two, e.g. 22 | // DS_MATRIX_TOP + DS_MATRIX_LEFT for the top-left corner. 23 | // DS_MATRIX_ROWS, DS_MATRIX_COLUMNS: LEDs are arranged in horizontal 24 | // rows or in vertical columns, respectively; pick one or the other. 25 | // DS_MATRIX_PROGRESSIVE, DS_MATRIX_ZIGZAG: all rows/columns proceed 26 | // in the same order, or alternate lines reverse direction; pick one. 27 | // See example below for these values in action. 28 | // Parameter 5 = pixel type: 29 | // DOTSTAR_BRG Pixels are wired for BRG bitstream (most DotStar items) 30 | // DOTSTAR_GBR Pixels are wired for GBR bitstream (some older DotStars) 31 | 32 | Adafruit_DotStarMatrix matrix = Adafruit_DotStarMatrix( 33 | 8, 8, DATAPIN, CLOCKPIN, 34 | DS_MATRIX_TOP + DS_MATRIX_RIGHT + 35 | DS_MATRIX_COLUMNS + DS_MATRIX_PROGRESSIVE, 36 | DOTSTAR_BRG); 37 | //Adafruit_DotStarMatrix matrix = Adafruit_DotStarMatrix( 38 | // 8, 8, 39 | // DS_MATRIX_TOP + DS_MATRIX_RIGHT + 40 | // DS_MATRIX_COLUMNS + DS_MATRIX_PROGRESSIVE, 41 | // DOTSTAR_BRG); 42 | 43 | const uint16_t colors[] = { 44 | matrix.Color(255, 0, 0), matrix.Color(0, 255, 0), matrix.Color(0, 0, 255) }; 45 | 46 | void setup() { 47 | matrix.begin(); 48 | matrix.setTextWrap(false); 49 | matrix.setBrightness(40); 50 | matrix.setTextColor(colors[0]); 51 | } 52 | 53 | int x = matrix.width(); 54 | int pass = 0; 55 | 56 | void loop() { 57 | matrix.fillScreen(0); 58 | matrix.setCursor(x, 0); 59 | matrix.print(F("Howdy")); 60 | if(--x < -36) { 61 | x = matrix.width(); 62 | if(++pass >= 3) pass = 0; 63 | matrix.setTextColor(colors[pass]); 64 | } 65 | matrix.show(); 66 | delay(100); 67 | } 68 | -------------------------------------------------------------------------------- /examples/tiletest/tiletest.pde: -------------------------------------------------------------------------------- 1 | // Adafruit_DotStarMatrix example for tiled DotStar matrices. Scrolls 2 | // 'Howdy' across three 10x8 DotStar grids that were created using 3 | // DotStar 60 LEDs per meter flex strip. 4 | 5 | #include 6 | #include 7 | #include 8 | #include 9 | #ifndef PSTR 10 | #define PSTR // Make Arduino Due happy 11 | #endif 12 | 13 | #define DATAPIN 4 14 | #define CLOCKPIN 5 15 | 16 | // MATRIX DECLARATION: 17 | // Parameter 1 = width of EACH DOTSTAR MATRIX (not total display) 18 | // Parameter 2 = height of each matrix 19 | // Parameter 3 = number of matrices arranged horizontally 20 | // Parameter 4 = number of matrices arranged vertically 21 | // Parameter 5 = pin number (most are valid) 22 | // Parameter 6 = matrix layout flags, add together as needed: 23 | // DS_MATRIX_TOP, DS_MATRIX_BOTTOM, DS_MATRIX_LEFT, DS_MATRIX_RIGHT: 24 | // Position of the FIRST LED in the FIRST MATRIX; pick two, e.g. 25 | // DS_MATRIX_TOP + DS_MATRIX_LEFT for the top-left corner. 26 | // DS_MATRIX_ROWS, DS_MATRIX_COLUMNS: LEDs WITHIN EACH MATRIX are 27 | // arranged in horizontal rows or in vertical columns, respectively; 28 | // pick one or the other. 29 | // DS_MATRIX_PROGRESSIVE, DS_MATRIX_ZIGZAG: all rows/columns WITHIN 30 | // EACH MATRIX proceed in the same order, or alternate lines reverse 31 | // direction; pick one. 32 | // DS_TILE_TOP, DS_TILE_BOTTOM, DS_TILE_LEFT, DS_TILE_RIGHT: 33 | // Position of the FIRST MATRIX (tile) in the OVERALL DISPLAY; pick 34 | // two, e.g. DS_TILE_TOP + DS_TILE_LEFT for the top-left corner. 35 | // DS_TILE_ROWS, DS_TILE_COLUMNS: the matrices in the OVERALL DISPLAY 36 | // are arranged in horizontal rows or in vertical columns, respectively; 37 | // pick one or the other. 38 | // DS_TILE_PROGRESSIVE, DS_TILE_ZIGZAG: the ROWS/COLUMS OF MATRICES 39 | // (tiles) in the OVERALL DISPLAY proceed in the same order for every 40 | // line, or alternate lines reverse direction; pick one. When using 41 | // zig-zag order, the orientation of the matrices in alternate rows 42 | // will be rotated 180 degrees (this is normal -- simplifies wiring). 43 | // See example below for these values in action. 44 | // Parameter 7 = pixel type: 45 | // DOTSTAR_BRG Pixels are wired for BRG bitstream (most DotStar items) 46 | // DOTSTAR_GBR Pixels are wired for GBR bitstream (some older DotStars) 47 | 48 | // Example with three 10x8 matrices (created using DotStar flex strip -- 49 | // these grids are not a ready-made product). In this application we'd 50 | // like to arrange the three matrices side-by-side in a wide display. 51 | // The first matrix (tile) will be at the left, and the first pixel within 52 | // that matrix is at the top left. The matrices use zig-zag line ordering. 53 | // There's only one row here, so it doesn't matter if we declare it in row 54 | // or column order. The pixels expect BRG color data. 55 | // IMPORTANT: when using tiled matrices, cast the first two arguments to 56 | // (uint8_t) as shown here. This avoids ambiguity between certain combos 57 | // of single/tiled hard/soft SPI. Do NOT cast for single matrices. 58 | Adafruit_DotStarMatrix matrix = Adafruit_DotStarMatrix( 59 | (uint8_t)10, (uint8_t)8, 3, 1, DATAPIN, CLOCKPIN, 60 | DS_TILE_TOP + DS_TILE_LEFT + DS_TILE_ROWS + DS_TILE_PROGRESSIVE + 61 | DS_MATRIX_TOP + DS_MATRIX_LEFT + DS_MATRIX_ROWS + DS_MATRIX_ZIGZAG, 62 | DOTSTAR_BRG); 63 | //Adafruit_DotStarMatrix matrix = Adafruit_DotStarMatrix( 64 | // (uint8_t)10, (uint8_t)8, 3, 1, 65 | // DS_TILE_TOP + DS_TILE_LEFT + DS_TILE_ROWS + DS_TILE_PROGRESSIVE + 66 | // DS_MATRIX_TOP + DS_MATRIX_LEFT + DS_MATRIX_ROWS + DS_MATRIX_ZIGZAG, 67 | // DOTSTAR_BRG); 68 | 69 | const uint16_t colors[] = { 70 | matrix.Color(255, 0, 0), matrix.Color(0, 255, 0), matrix.Color(0, 0, 255) }; 71 | 72 | void setup() { 73 | matrix.begin(); 74 | matrix.setTextWrap(false); 75 | matrix.setBrightness(40); 76 | matrix.setTextColor(colors[0]); 77 | } 78 | 79 | int x = matrix.width(); 80 | int pass = 0; 81 | 82 | void loop() { 83 | matrix.fillScreen(0); 84 | matrix.setCursor(x, 0); 85 | matrix.print(F("Howdy")); 86 | if(--x < -36) { 87 | x = matrix.width(); 88 | if(++pass >= 3) pass = 0; 89 | matrix.setTextColor(colors[pass]); 90 | } 91 | matrix.show(); 92 | delay(100); 93 | } 94 | -------------------------------------------------------------------------------- /extras/gamma.c: -------------------------------------------------------------------------------- 1 | // THIS IS NOT ARDUINO CODE -- DON'T INCLUDE IN YOUR SKETCH. It's a 2 | // command-line tool that outputs a gamma correction table to stdout; 3 | // redirect or copy and paste the results into header file for the 4 | // DotStarMatrix library code. 5 | // Optional 1 parameter: bit depth (default=5, for 32 output levels). 6 | 7 | #include 8 | #include 9 | #include 10 | 11 | #define GAMMA 2.6 12 | 13 | int planes = 5; 14 | 15 | int main(int argc, char *argv[]) { 16 | int i, maxval; 17 | 18 | if (argc > 1) 19 | planes = atoi(argv[1]); 20 | 21 | maxval = (1 << planes) - 1; 22 | 23 | (void)printf("#ifndef _GAMMA_H_\n" 24 | "#define _GAMMA_H_\n" 25 | "\n" 26 | "#ifdef __AVR\n" 27 | " #include \n" 28 | "#else\n" 29 | " #ifndef PROGMEM\n" 30 | " #define PROGMEM\n" 31 | " #endif\n" 32 | "#endif\n" 33 | "\n" 34 | "static const uint8_t PROGMEM\n" 35 | " gamma%d[] = {\n" 36 | " ", 37 | planes); 38 | 39 | for (i = 0; i <= maxval; i++) { 40 | (void)printf( 41 | "%3d", 42 | (int)(pow((float)i / (float)maxval, GAMMA) * (float)255.0 + 0.5)); 43 | if (i < maxval) 44 | (void)printf(((i & 15) == 15) ? ",\n " : ","); 45 | } 46 | 47 | (void)puts("\n};\n\n" 48 | "#endif // _GAMMA_H_"); 49 | 50 | return 0; 51 | } 52 | -------------------------------------------------------------------------------- /gamma.h: -------------------------------------------------------------------------------- 1 | #ifndef _GAMMA_H_ 2 | #define _GAMMA_H_ 3 | 4 | #ifdef __AVR 5 | #include 6 | #elif defined(ESP8266) 7 | #include 8 | #else 9 | #ifndef PROGMEM 10 | #define PROGMEM 11 | #endif 12 | #endif 13 | 14 | static const unsigned char PROGMEM 15 | gamma5[] = {0x00, 0x01, 0x02, 0x03, 0x05, 0x07, 0x09, 0x0b, 16 | 0x0e, 0x11, 0x14, 0x18, 0x1d, 0x22, 0x28, 0x2e, 17 | 0x36, 0x3d, 0x46, 0x4f, 0x59, 0x64, 0x6f, 0x7c, 18 | 0x89, 0x97, 0xa6, 0xb6, 0xc7, 0xd9, 0xeb, 0xff}, 19 | gamma6[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x08, 0x09, 0x0a, 20 | 0x0b, 0x0d, 0x0e, 0x10, 0x12, 0x13, 0x15, 0x17, 0x19, 0x1b, 21 | 0x1d, 0x20, 0x22, 0x25, 0x27, 0x2a, 0x2d, 0x30, 0x33, 0x37, 22 | 0x3a, 0x3e, 0x41, 0x45, 0x49, 0x4d, 0x52, 0x56, 0x5b, 0x5f, 23 | 0x64, 0x69, 0x6e, 0x74, 0x79, 0x7f, 0x85, 0x8b, 0x91, 0x97, 24 | 0x9d, 0xa4, 0xab, 0xb2, 0xb9, 0xc0, 0xc7, 0xcf, 0xd6, 0xde, 25 | 0xe6, 0xee, 0xf7, 0xff}; 26 | 27 | #endif // _GAMMA_H_ 28 | -------------------------------------------------------------------------------- /library.properties: -------------------------------------------------------------------------------- 1 | name=Adafruit DotStarMatrix 2 | version=1.0.9 3 | author=Adafruit 4 | maintainer=Adafruit 5 | sentence=Adafruit_GFX-compatible library for DotStar grids 6 | paragraph=Adafruit_GFX-compatible library for DotStar grids 7 | category=Display 8 | url=https://github.com/adafruit/Adafruit_DotStarMatrix 9 | architectures=* 10 | depends=Adafruit DotStar, Adafruit GFX Library 11 | --------------------------------------------------------------------------------