ともの技術メモ

#include <BleKeyboard.h>

BleKeyboard bleKeyboard("ESP32 KEYBOARD"); //デバイスの名前

void setup() {
  Serial.begin(115200);
  Serial.println("Starting BLE work!");
  bleKeyboard.begin();

  pinMode(0,INPUT_PULLUP);    //GPIO0(BOOT)をプルアップ付き入力設定
}

void loop() {
  if(bleKeyboard.isConnected()) {    //接続されているとき
    if(digitalRead(0) == LOW){       //BOOTスイッチが押されている時
      bleKeyboard.print("keyboard test!");    //文字を送信
      bleKeyboard.write(KEY_RETURN); //Enterを送信
      delay(200);
    }
  }
}

#include <BleKeyboard.h>

BleKeyboard bleKeyboard("ESP32 KEYBOARD"); //デバイスの名前

void setup() {
  Serial.begin(115200);
  Serial.println("Starting BLE work!");
  bleKeyboard.begin();

  pinMode(0,INPUT_PULLUP);    //GPIO0(BOOT)をプルアップ付き入力設定
}

void loop() {
  static int sn,sp=HIGH;
  if(bleKeyboard.isConnected()) {    //接続されているとき
    sn = digitalRead(0);
    if(sn == LOW && sp==HIGH){       //BOOTスイッチが押されている時
      bleKeyboard.write(KEY_MEDIA_MUTE); //メディアキーを送信
    }
    sp=sn;
    delay(20);
  }
}

typedef uint8_t MediaKeyReport[2];

const MediaKeyReport KEY_MEDIA_NEXT_TRACK = {1, 0};
const MediaKeyReport KEY_MEDIA_PREVIOUS_TRACK = {2, 0};
const MediaKeyReport KEY_MEDIA_STOP = {4, 0};
const MediaKeyReport KEY_MEDIA_PLAY_PAUSE = {8, 0};
const MediaKeyReport KEY_MEDIA_MUTE = {16, 0};
const MediaKeyReport KEY_MEDIA_VOLUME_UP = {32, 0};
const MediaKeyReport KEY_MEDIA_VOLUME_DOWN = {64, 0};
const MediaKeyReport KEY_MEDIA_WWW_HOME = {128, 0};
const MediaKeyReport KEY_MEDIA_LOCAL_MACHINE_BROWSER = {0, 1}; // Opens "My Computer" on Windows
const MediaKeyReport KEY_MEDIA_CALCULATOR = {0, 2};
const MediaKeyReport KEY_MEDIA_WWW_BOOKMARKS = {0, 4};
const MediaKeyReport KEY_MEDIA_WWW_SEARCH = {0, 8};
const MediaKeyReport KEY_MEDIA_WWW_STOP = {0, 16};
const MediaKeyReport KEY_MEDIA_WWW_BACK = {0, 32};
const MediaKeyReport KEY_MEDIA_CONSUMER_CONTROL_CONFIGURATION = {0, 64}; // Media Selection
const MediaKeyReport KEY_MEDIA_EMAIL_READER = {0, 128};

static const uint8_t _hidReportDescriptor[] = {
  USAGE_PAGE(1),      0x01,          // USAGE_PAGE (Generic Desktop Ctrls)
  USAGE(1),           0x06,          // USAGE (Keyboard)
  COLLECTION(1),      0x01,          // COLLECTION (Application)
  // ------------------------------------------------- Keyboard
  REPORT_ID(1),       KEYBOARD_ID,   //   REPORT_ID (1)
  USAGE_PAGE(1),      0x07,          //   USAGE_PAGE (Kbrd/Keypad)
  USAGE_MINIMUM(1),   0xE0,          //   USAGE_MINIMUM (0xE0)
  USAGE_MAXIMUM(1),   0xE7,          //   USAGE_MAXIMUM (0xE7)
  LOGICAL_MINIMUM(1), 0x00,          //   LOGICAL_MINIMUM (0)
  LOGICAL_MAXIMUM(1), 0x01,          //   Logical Maximum (1)
  REPORT_SIZE(1),     0x01,          //   REPORT_SIZE (1)
  REPORT_COUNT(1),    0x08,          //   REPORT_COUNT (8)
  HIDINPUT(1),        0x02,          //   INPUT (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
  REPORT_COUNT(1),    0x01,          //   REPORT_COUNT (1) ; 1 byte (Reserved)
  REPORT_SIZE(1),     0x08,          //   REPORT_SIZE (8)
  HIDINPUT(1),        0x01,          //   INPUT (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
  REPORT_COUNT(1),    0x05,          //   REPORT_COUNT (5) ; 5 bits (Num lock, Caps lock, Scroll lock, Compose, Kana)
  REPORT_SIZE(1),     0x01,          //   REPORT_SIZE (1)
  USAGE_PAGE(1),      0x08,          //   USAGE_PAGE (LEDs)
  USAGE_MINIMUM(1),   0x01,          //   USAGE_MINIMUM (0x01) ; Num Lock
  USAGE_MAXIMUM(1),   0x05,          //   USAGE_MAXIMUM (0x05) ; Kana
  HIDOUTPUT(1),       0x02,          //   OUTPUT (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
  REPORT_COUNT(1),    0x01,          //   REPORT_COUNT (1) ; 3 bits (Padding)
  REPORT_SIZE(1),     0x03,          //   REPORT_SIZE (3)
  HIDOUTPUT(1),       0x01,          //   OUTPUT (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
  REPORT_COUNT(1),    0x06,          //   REPORT_COUNT (6) ; 6 bytes (Keys)
  REPORT_SIZE(1),     0x08,          //   REPORT_SIZE(8)
  LOGICAL_MINIMUM(1), 0x00,          //   LOGICAL_MINIMUM(0)
  LOGICAL_MAXIMUM(1), 0x65,          //   LOGICAL_MAXIMUM(0x65) ; 101 keys
  USAGE_PAGE(1),      0x07,          //   USAGE_PAGE (Kbrd/Keypad)
  USAGE_MINIMUM(1),   0x00,          //   USAGE_MINIMUM (0)
  USAGE_MAXIMUM(1),   0x65,          //   USAGE_MAXIMUM (0x65)
  HIDINPUT(1),        0x00,          //   INPUT (Data,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
  END_COLLECTION(0),                 // END_COLLECTION
  // ------------------------------------------------- Media Keys
  USAGE_PAGE(1),      0x0C,          // USAGE_PAGE (Consumer)
  USAGE(1),           0x01,          // USAGE (Consumer Control)
  COLLECTION(1),      0x01,          // COLLECTION (Application)
  REPORT_ID(1),       MEDIA_KEYS_ID, //   REPORT_ID (3)
  USAGE_PAGE(1),      0x0C,          //   USAGE_PAGE (Consumer)
  LOGICAL_MINIMUM(1), 0x00,          //   LOGICAL_MINIMUM (0)
  LOGICAL_MAXIMUM(1), 0x01,          //   LOGICAL_MAXIMUM (1)
  REPORT_SIZE(1),     0x01,          //   REPORT_SIZE (1)
  REPORT_COUNT(1),    0x10,          //   REPORT_COUNT (16)
  USAGE(1),           0xB5,          //   USAGE (Scan Next Track)     ; bit 0: 1
  USAGE(1),           0xB6,          //   USAGE (Scan Previous Track) ; bit 1: 2
  USAGE(1),           0xB7,          //   USAGE (Stop)                ; bit 2: 4
  USAGE(1),           0xCD,          //   USAGE (Play/Pause)          ; bit 3: 8
  USAGE(1),           0xE2,          //   USAGE (Mute)                ; bit 4: 16
  USAGE(1),           0xE9,          //   USAGE (Volume Increment)    ; bit 5: 32
  USAGE(1),           0xEA,          //   USAGE (Volume Decrement)    ; bit 6: 64
  USAGE(2),           0x23, 0x02,    //   Usage (WWW Home)            ; bit 7: 128
  USAGE(2),           0x94, 0x01,    //   Usage (My Computer) ; bit 0: 1
  USAGE(2),           0x92, 0x01,    //   Usage (Calculator)  ; bit 1: 2
  USAGE(2),           0x2A, 0x02,    //   Usage (WWW fav)     ; bit 2: 4
  USAGE(2),           0x21, 0x02,    //   Usage (WWW search)  ; bit 3: 8
  USAGE(2),           0x26, 0x02,    //   Usage (WWW stop)    ; bit 4: 16
  USAGE(2),           0x24, 0x02,    //   Usage (WWW back)    ; bit 5: 32
  USAGE(2),           0x83, 0x01,    //   Usage (Media sel)   ; bit 6: 64
  USAGE(2),           0x8A, 0x01,    //   Usage (Mail)        ; bit 7: 128
  HIDINPUT(1),        0x02,          //   INPUT (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
  END_COLLECTION(0)                  // END_COLLECTION
};

#define KEY_MICMUTE 248 /* Mute / unmute the microphone */