OurBrewbotHardware
OurBrewbot runs on the ESP8266 inside the MyBrewbot controller, or on a NodeMCU board with 4 MB of flash wired the same way:
| Function | GPIO | NodeMCU pin | Connects to |
|---|---|---|---|
| Probe bus 1 | GPIO0 | D3 | Green jack (DS18B20) |
| Probe bus 2 | GPIO2 | D4 | Black jack (DS18B20) |
| RF transmitter | GPIO4 | D2 | FS1000A 433 MHz TX |
| RF receiver | GPIO14 | D5 | MX-RM-5V 433 MHz RX |
| Bluetooth (ESP TX) | GPIO12 | D6 | HM-10 RX |
| Bluetooth (ESP RX) | GPIO13 | D7 | HM-10 TX |
| LED | GPIO16 | D0 | NodeMCU built-in LED |
| Pressure sensor | A0 (ADC) | A0 | Pink jack (100 PSI analog sender) |
Limits: 4 fermenters, 8 temperature probes, 10 RF smart plugs, 4 profiles of up to 15 steps, 8 Tilt colours, 4 iSpindels and 1 pressure sensor.