LEGO Technic 8720 Motor Voltage Details
Thought for 18 sec
I’ll check the PCB layout for component/body overlaps and copper overlap DRC issues, then report any collisions found.
Worked for 47 sec
The routing pre-check doesn’t indicate component overlap; I’m running the actual layout DRC overlap checks now for a definitive answer.
Worked for 1 min 14 sec
I’m checking the current board state now; I’ll look at both DRC overlap checks and the component placement bounds.
Worked for 30 sec
The board validation reports the board is fully placed, but that is not a collision check. I’m running the explicit overlap/clearance review next.
Worked for 1 min 48 sec
No — I don’t see any current part collision/overlap issues.
I ran the PCB overlap DRC checks for overlapping copper, fills, traces, invalid layers, and missing footprints; there were no open errors or warnings. The layout summary also shows all 13 components placed on the top layer with low density and enough routing space.
Run full DRC
Check routing evidence
Review manufacturability
Verify Pico mapping
Inspect clearances
Refine this doc
Ask about this doc
Raspberry Pi LEGO 9V Motor Controller Specification
Requirements
- Control a LEGO 9 V DC motor, element number 74569.
- Motor supply: external 9 V input.
- Control input: Raspberry Pi 3.3 V GPIO/PWM signal.
- Motor current: typical =2 A and >=20 V is preferred.
- This is unidirectional speed control only. Reversing direction would require an H-bridge.
- Raspberry Pi ground must be tied to the motor supply ground for a valid gate-drive reference.
Requirements
Selected Architecture
Design Notes
