acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
keyboard.h (1851B)
      1 /*******************************************************************************
      2  * Keyboard libraries:
      3  * M5Stack CardKB: no extra libraries required
      4  https://github.com/solderparty/arduino_bbq10kbd
      5  ******************************************************************************/
      6 
      7 /* uncomment for M5Stack CardKB */
      8 // #define KEYBOARD_CARDKB
      9 // #define KEYBOARD_CARDKB_SDA 19
     10 // #define KEYBOARD_CARDKB_SCL 20
     11 // #define KEYBOARD_CARDKB_I2C_ADDR 0x5f
     12 
     13 /* uncomment for BBQKeyboard */
     14 // #define KEYBOARD_BBQKB
     15 // #define KEYBOARD_BBQKB_SDA 21
     16 // #define KEYBOARD_BBQKB_SCL 22
     17 
     18 #if defined(KEYBOARD_CARDKB)
     19 #include <Wire.h>
     20 #elif defined(KEYBOARD_BBQKB)
     21 #include <Wire.h>
     22 #include <BBQ10Keyboard.h>
     23 BBQ10Keyboard keyboard;
     24 #endif
     25 
     26 void keyboard_init() {
     27 #if defined(KEYBOARD_CARDKB)
     28   Wire1.begin(KEYBOARD_CARDKB_SDA, KEYBOARD_CARDKB_SCL);
     29 #elif defined(KEYBOARD_BBQKB)
     30   Wire1.begin(KEYBOARD_BBQKB_SDA, KEYBOARD_BBQKB_SCL);
     31   keyboard.begin();
     32   keyboard.setBacklight(0.5f);
     33 #endif
     34 }
     35 
     36 char keyboard_get_key() {
     37 #if defined(KEYBOARD_CARDKB)
     38   uint8_t bytesReceived = Wire1.requestFrom(KEYBOARD_CARDKB_I2C_ADDR, 1);
     39   if ((bool)bytesReceived) {  //If received more than zero bytes
     40     return Wire1.read();
     41   } else {
     42     return 0;
     43   }
     44 #elif defined(KEYBOARD_BBQKB)
     45   const int keyCount = keyboard.keyCount();
     46   if (keyCount > 0) {
     47     const BBQ10Keyboard::KeyEvent key = keyboard.keyEvent();
     48     String state = "pressed";
     49     if (key.state == BBQ10Keyboard::StateLongPress)
     50       state = "held down";
     51     else if (key.state == BBQ10Keyboard::StateRelease)
     52       state = "released";
     53 
     54     Serial.printf("key: '%c' (dec %d, hex %02x) %s\r\n", key.key, key.key, key.key, state.c_str());
     55 
     56     if ((key.key != 0) && (key.state != BBQ10Keyboard::StateRelease)) {
     57       return key.key;
     58     } else {
     59       return 0;
     60     }
     61   } else {
     62     return 0;
     63   }
     64 #endif
     65 }