TinyPICO – tiny fully-featured ESP32 board(tinypico.com)

    #define CYCLE       1000
    #define W_0         600
    #define W_1         400

    #define INTRO_1     1500
    #define INTRO_0     1500

    void send_message(char * bp, int n)
    {
        digitalWrite(RADIO, HIGH);
        delayMicroseconds(INTRO_1);
        digitalWrite(RADIO, LOW);
        delayMicroseconds(INTRO_0);

        while (n-- > 0) {
            int b = *bp++ & 0xff;
            int m = 0x80;
            while (m != 0) {
                int w = (b & m) ? W_1 : W_0;
                digitalWrite(RADIO, HIGH);
                delayMicroseconds(w);
                digitalWrite(RADIO, LOW);
                delayMicroseconds(CYCLE-w);
                m >>= 1;
            }
        }
    }

  decoder {
    name        = TEST,
    modulation  = OOK_PWM,
    short       = 424,
    long        = 624,
    reset       = 1500,
    sync        = 1528,
    bits        = 96,
    match       = {24}0x849083,
    get         = count:@80:{16},
  }