remote control a Sony TA-FE330R using an esp32 and an infrared diode

sony-amp-ir.yaml

esphome:
  name: sony-amp-ir
  friendly_name: Sony Amp IR

esp32:
  board: esp32dev
  framework:
    type: esp-idf

logger:
api:
  encryption:
    key: !secret api_enc_key
ota:
  - platform: esphome
    password: !secret ota_password

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  manual_ip:
    static_ip: 192.168.178.8
    gateway: 192.168.178.1
    subnet: 255.255.255.0
  enable_btm: true
  
remote_transmitter:
  pin: GPIO4
  carrier_duty_percent: 50%
  non_blocking: True

script:
  - id: send_sony
    parameters:
      command: int
    then:
      - remote_transmitter.transmit_raw:
          carrier_frequency: 40kHz
          # This lambda generates the SIRC pulse train:
          # Header: 2400us high, 600us low
          # Data: 1200us high (1) or 600us high (0), followed by 600us low
          code: !lambda |-
            std::vector<long int> control;
            uint16_t data = (16 << 7) | (command & 0x7F);
            
            for (int r = 0; r < 3; r++) { // Repeat 3 times
              // Header
              control.push_back(2400);
              control.push_back(-600);
              
              // 12 bits LSB first
              for (int i = 0; i < 12; i++) {
                if ((data >> i) & 1) {
                  control.push_back(1200); // Bit 1
                } else {
                  control.push_back(600);  // Bit 0
                }
                control.push_back(-600);   // Space
              }
              // Gap between repeats (Sony standard is ~45ms total cycle)
              control.push_back(-25000); 
            }
            return control;

button:
  - platform: template
    name: Power
    on_press:
      - script.execute:
          id: send_sony
          command: 21

  - platform: template
    name: Power On
    on_press:
      - script.execute:
          id: send_sony
          command: 46

  - platform: template
    name: Power Off
    on_press:
      - script.execute:
          id: send_sony
          command: 47

  - platform: template
    name: Volume Up
    on_press:
      - script.execute:
          id: send_sony
          command: 18

  - platform: template
    name: Volume Down
    on_press:
      - script.execute:
          id: send_sony
          command: 19

  - platform: template
    name: Tuner
    on_press:
      - script.execute:
          id: send_sony
          command: 33

  - platform: template
    name: Tape
    on_press:
      - script.execute:
          id: send_sony
          command: 35

  - platform: template
    name: Tape2
    on_press:
      - script.execute:
          id: send_sony
          command: 36

  - platform: template
    name: CD
    on_press:
      - script.execute:
          id: send_sony
          command: 37

  - platform: template
    name: AUX
    on_press:
      - script.execute:
          id: send_sony
          command: 29

  - platform: template
    name: Video1
    on_press:
      - script.execute:
          id: send_sony
          command: 34

  - platform: template
    name: Video2
    on_press:
      - script.execute:
          id: send_sony
          command: 30

  - platform: template
    name: Phono
    on_press:
      - script.execute:
          id: send_sony
          command: 32