The breakout connects to the Metro RP2350 over I2C with a STEMMA QT cable. Each solenoid connects to the breakout with the screw block terminals. The solenoids are powered by 12V via Vin and GND on the Metro from the DC jack input.
- Solenoid 0 positive to breakout + (red wire)
- Solenoid 0 negative to breakout 0 (black wire)
- Solenoid 1 positive to breakout + (red wire)
- Solenoid 1 negative to breakout 1 (black wire)
- Solenoid 2 positive to breakout + (red wire)
- Solenoid 2 negative to breakout 2 (black wire)
- Solenoid 3 positive to breakout + (red wire)
- Solenoid 3 negative to breakout 3 (black wire)
- Solenoid 4 positive to breakout + (red wire)
- Solenoid 4 negative to breakout 4 (black wire)
- Solenoid 5 positive to breakout + (red wire)
- Solenoid 5 negative to breakout 5 (black wire)
- Solenoid 6 positive to breakout + (red wire)
- Solenoid 6 negative to breakout 6 (black wire)
- Solenoid 7 positive to breakout + (red wire)
- Solenoid 7 negative to breakout 7 (black wire)
- Breakout STEMMA QT to Metro STEMMA QT
- Breakout terminal power + to Metro Vin (red wire)
- Breakout terminal power - to Metro GND (black wire)
- 12V power supply to Metro DC In
Page last edited May 12, 2025
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