├── README.md
├── ADCButtons.h
├── examples
    └── ADC_Butt_Test
    │   └── ADC_Butt_Test.ino
├── library.properties
├── keywords.txt
└── ADCButtons.cpp


/README.md:
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 1 | # ADCButtons
 2 | 
 3 | A simple ADC 16 Buttons and 4x4 keypad library.
 4 | 
 5 | // 1. Create object:
 6 | 
 7 | ADCButtons button(A0);  // A0 = analog pin
 8 | 
 9 | // 2. get button:
10 | 
11 | byte butt = button.get();
12 | 
13 | ![ADCButtons Test](https://i.imgur.com/R18GNTR.png)
14 | 


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/ADCButtons.h:
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 1 | #ifndef ADCBUTTONS_H
 2 | #define ADCBUTTONS_H
 3 | #include <arduino.h>
 4 | 
 5 | class ADCButtons {
 6 |   private:
 7 |     byte _pin;
 8 |     char *_key;
 9 | 
10 |   public:
11 |     ADCButtons(byte pin);
12 |     byte get();
13 |     char getKeyChar();
14 |     char waitForKey();
15 | };
16 | 
17 | #endif


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/examples/ADC_Butt_Test/ADC_Butt_Test.ino:
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 1 | #include <ADCButtons.h>
 2 | 
 3 | ADCButtons button(A0);
 4 | 
 5 | void setup() {
 6 |   Serial.begin(9600);
 7 | }
 8 | 
 9 | void loop() {
10 |   byte b = button.get();
11 |   char k = button.getKeyChar();
12 |   if (b != 0) {
13 |     Serial.print(b);
14 |     Serial.print("  ");
15 |     Serial.println(k);
16 |   }
17 | }


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/library.properties:
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1 | name=ADCButtons
2 | version=1.0.0
3 | author=Antor Ahmed <antor.mee@gmail.com>
4 | maintainer=Antor Ahmed <antor.mee@gmail.com>
5 | sentence=A simple ADC 16 Buttons and 4x4 keypad library.
6 | paragraph=Now you can use your 4x4 keypad or 16 Buttons with just a single analog pin(ADC).
7 | category=Signal Input/Output
8 | url=https://github.com/AntorOfficial/ADCButtons/
9 | architectures=*


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/keywords.txt:
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 1 | ###########################################
 2 | # Datatypes and Class Name (KEYWORD1)
 3 | ###########################################
 4 | ADCButtons  KEYWORD1
 5 | 
 6 | ###########################################
 7 | # Methods and Functions (KEYWORD2)
 8 | ###########################################
 9 | getKeyChar  KEYWORD2
10 | waitForKey  KEYWORD2
11 | 
12 | ###########################################
13 | # Constants (LITERAL1)
14 | ###########################################


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/ADCButtons.cpp:
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 1 | #include "ADCButtons.h"
 2 | 
 3 | ADCButtons::ADCButtons(byte pin) {
 4 |   _pin = pin;
 5 |   _key = new char[16]{'1', '2', '3', 'A', '4', '5', '6', 'B',
 6 |                       '7', '8', '9', 'C', '.', '0', ' ', 'D'};
 7 | }
 8 | 
 9 | byte ADCButtons::get() {
10 |   int adc = analogRead(_pin);
11 |   switch (adc) {
12 |     case 1014 ... 1020:
13 |       return 1;
14 |     case 1006 ... 1012:
15 |       return 2;
16 |     case 999 ... 1005:
17 |       return 3;
18 |     case 990 ... 996:
19 |       return 4;
20 |     case 984 ... 989:
21 |       return 5;
22 |     case 977 ... 983:
23 |       return 6;
24 |     case 957 ... 963:
25 |       return 7;
26 |     case 928 ... 934:
27 |       return 8;
28 |     case 890 ... 896:
29 |       return 9;
30 |     case 836 ... 842:
31 |       return 10;
32 |     case 777 ... 783:
33 |       return 11;
34 |     case 761 ... 765:
35 |       return 12;
36 |     case 702 ... 708:
37 |       return 13;
38 |     case 659 ... 665:
39 |       return 14;
40 |     case 612 ... 618:
41 |       return 15;
42 |     case 566 ... 572:
43 |       return 16;
44 |     default:
45 |       return 0;
46 |   }
47 |   return 0;
48 | }
49 | 
50 | char ADCButtons::getKeyChar() {
51 |   int key = get();
52 |   if (key == 0) return 0;
53 |   return _key[key - 1];
54 | }
55 | 
56 | char ADCButtons::waitForKey() {
57 |   char key = getKeyChar();
58 |   while (!key) key = getKeyChar();
59 |   return key;
60 | }


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