## Pinout Reference

The table below is a cross-reference for all active pins on
the microcontroller and their respective purpose:

| Pin  | Name  | Function                  |
| ---- | ----- | ------------------------- |
| PB0  | MOS01 | MOSFET Peltier enable     |
| PB1  | MOS02 | MOSFET Heating enable     |
| PB2  | MOS03 | MOSFET Lights enable      |
| PC0  | TWSCL | I2C Primary data bus SCL  |
| PC1  | TWSDA | I2C Primary data bus SDA  |
| PD0  | UADRX | UART Debug interface RX   |
| PD1  | UADTX | UART Debug interface TX   |
| PD4  | FAN01 | PWM Fan peltier hot side  |
| PD5  | FAN02 | PWM Fan peltier cold side |
| PD7  | FAN03 | PWM Fan heating element   |