We start by connecting the Grow r503 (Pro) to the RP2040 Pico W with the following pinout.
# | Sensor Wire Color | Function | PIN# | Pin Name |
---|---|---|---|---|
1 | Power | 36 | ||
2 | Ground | 38 | ||
3 | TX (Out) | 21 | ||
4 | RX (In) | 22 | ||
5 | Wakeup | 24 | ||
6 | Touch | 36 |
# | Sensor Wire Color | Function | PIN# | Pin Name |
---|---|---|---|---|
1 | Power | 3V3 | ||
2 | Ground | GND | ||
3 | TX (Out) | 14 | ||
4 | RX (In) | 15 | ||
5 | Wakeup | 4 | ||
6 | Touch | 3V3 |