/meat-fan

BBQ Fan Controller design with ESPHome firmware

MIT LicenseMIT

Meat Fan

BBQ Fan Controller design with ESPHome firmware

The Meat Fan is currently on hold, first I'll focus on creating just a BBQ Thermometer, see below.

Meat Temp

BBQ Thermometer design with ESPHome firmware

Hardware

  • ESP32 Development board
  • PCB board (5 x 7cm or bigger)
  • 15 pin female header (2 times). Optional, but allows for easy replacing and detaching the ESP.
  • Thermocouple (k-type) hardware
    • MAX31855 thermocouple board
    • Thermocouple (k-type)
  • Meat probe (thermistor) hardware
    • Meat probe (100k Ohm at 25°C)
    • Resistor (100k Ohm)
    • 0.1uF capacitor (for reducing noise on the ADC pin)

Circuit

Circuit Diagram Editor

Circuit

Assembly

  • You can use any of the ADC1 pins for the Meat probes.
  • You can use any GPIO pin for the 3 pins connecting to the MAX31855. Pin mapping:
    • DO => spi.miso_pin
    • CS => sensor[platform=max31855].cs_pin
    • CLK => spi.clk_pin