IR Transmitter Not Working on ESP8266

ESPHome
1

I am trying to transmit IR codes to my AC unit and I have gotten it working with the Arduino IDE, but I want to control it with ESPHome. I have used the NEC codes with my Arduino sketch so I know they work, but it seems like my ESPHome yaml is wrong somehow.
Either the IR led doesn’t come on when I press the button or it stays on and never turns off. Even if it does turn on, it doesn’t transmit the right code.

Here is my YAML:

esphome:
  name: swamp_cooler
  platform: ESP8266
  board: nodemcuv2

wifi:
  ssid: "****"
  password: "****"

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Swamp Cooler Fallback Hotspot"
    password: "UdV2YD5YhWMv"

captive_portal:

# Enable logging
logger:

# Enable Home Assistant API
api:

ota:
remote_receiver:
  pin: D5
  dump: all

remote_transmitter:
  pin: D6
  carrier_duty_percent: 50%

switch:
  - platform: template
    name: "Cooler - Power Toggle"
    turn_on_action:
      remote_transmitter.transmit_nec:
        address: 0x003F
        command: 0x21DE
  - platform: template
    name: "Cooler - Power Toggle RAW"
    turn_on_action:
      remote_transmitter.transmit_raw:
        code: [9100, -4424, 622, -502, 622, -502, 622, -504, 620, -504, 620, -504, 622, -502, 622, -504, 620, -504, 620, -504, 622, -502, 644, -1594, 620, -1618, 622, -1618, 636, -1602, 620, -1618, 620, -1620, 620, -504, 622, -500, 622, -1618, 620, -504, 622, -504, 620, -504, 622, -502, 620, -1618, 620, -1618, 620, -1620, 620, -502, 620, -1618, 622, -1618, 620, -1618, 620, -1620, 620, -490, 622]
2

Hi, do you get anything in the logs? Which IR transmitter are you using?

3

Check this post. The main problem most people have is that the IR signal is not strong enough to reach the device you want to control.

4

I found out what was wrong. It seems like the ground that I was using on the nodeMCU was bad. When I switched to a different ground pin the whole setup worked! Thanks for the help though!

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