Airemote

Airmote

Control any IR device and monitor room temperature, pressure and humidity with Home Assistant.

Zine

Why?

I always wanted to add my older devices that aren't compatible with Home Assistant to my automations. I want to turn my old stereo on when I start playing music, without having to reach for the half-broken remote.

Firmware

For the firmware, use ESPHome

Install guide

Code for the BME280 temperature sensor:

sensor:
  - platform: bme280_i2c
    temperature:
      name: "BME280 Temperature"
    pressure:
      name: "BME280 Pressure"
    humidity:
      name: "BME280 Humidity"

... and for the IR:

remote_transmitter:
  pin: GPIOXX
  carrier_duty_percent: 50%

climate:
  - platform: REPLACEME     # you need to replpace the platform to your AC. See esphome documentation for more
    name: "Living Room AC"
    sensor: room_temperature
    use_fahrenheit: false

Note: this is untested code.

Schematic and PCB

The schematic and PCB are pretty simple, just connecting the LEDs to a 2n2222 transistor and accompanying resistors for protection.

The BME 280 sensor is connected trough I2C. It's connected that way becaouse it simplifies the PCB and the sensor doesn't need fast data.

Case

I went for a industrial design as this device is intended to be hidden away on a high surface, away from sight. The bottom and top of the case are held by m2 screws along side bolts and heat inserts.

Designed in Fusion 360. Files are available in 3D/Airmote.f3z

BOM

*ONLY buy the listing of bolded items ONCE. Those are sold as a lot and you will be getting 50/100pcs per listing bought.

Credits

Hackclub Fallout - Founding

Kicad - Schematic and PCB design

ESPHome - Firmware