I want a simplest possible schematic that allows m...
Thought for 8 sec
I’ll check suitable AA battery-holder options, then update the schematic so the battery pack is the 9V input source and verify the power ERC afterward.
Worked for 1 min 23 sec
Yes — for the existing 9V motor rail, the right AA approach is six AA cells in series. I didn’t find a single 6×AA holder in the library, so I’m using a 4×AA holder plus a 2×AA holder wired in series for 9V nominal alkaline output.
Worked for 10 mins 50 sec
Implemented the AA battery power update: added
BT1 4×AA + BT2 2×AA in series as a 6×AA pack, wired to V9_MOTOR/GND through restored battery input terminal J2, and kept the holders as external/off-board parts. Updated the project files and verified ERC plus key placement/DRC checks are clean.Open items:
- 6× alkaline AA = ~9V nominal; 6× NiMH AA = ~7.2V nominal, so 9V motors may run slower on rechargeables.
- Confirm motor stall current and AA cell discharge capability before relying on four motors at once.
Suggested next steps:
- Add an input fuse/polyfuse for battery short-circuit protection.
- Add reverse-polarity protection for the battery input.
- Re-check layout/routing with the restored
J2battery connector.
Add protections and verify
Add input fuse
Add reverse protection
Check battery current
Re-check layout
