- 1~3, ACT1, ACT2,ACT3
connect to 5V driven SSR or Relay. for pump, heater, and sparge Heater control. If “Relay Modules” are used, use port “9. ACT Signal“.
- 4. Buzzer
5V driven buzzer.
- 5. Sensor
DS18B120 sensor. Connect 3V3 to power(vcc) of sensors.
5V power supply. 1.5A+ is recommended.
- 7. I2C LCD
I2C bus connection for LCD. The power is +5V.
- 8. Input
For keypad or buttons. P0 for Down, P1 for Up, P2 for Enter, and P3 for Start. Pushing the keypad or buttons cause the PIN to GROUNDED.
- 9. ACT Signal
The direct control signals of pump, heater, and sparge heater. 3V signal. They control the same ACT1~ACT3 output and are used to connect to relay modules.
- 10. WEMOS D1
The two 8pin headers are for WEMOS D1 mini or pro. Antenna Up, USB down.
- 52mm x 52mm
- $15.00 USD
- $5.00 USD shipping within USA.
Note: I wanted to run BrewPiLess on this board also. However, it turns out the rotary encoder doesn’t work smoothly without capacitors. Therefore, I don’t recommend to use it for BrewPiLess.
Please leave the message if you want to buy. I will send you PayPal invoice.