Schematic Review and Recommendations
Thought for 2 mins 14 sec
Based on the Flux knowledge-base guidance for reviewing schematics, here are the key observations and recommendations:
1. Floating battery and switch pins
- Neither BAT+ pogo nor BAT- pogo are tied into your power nets.
- The two pins of your switch (SW) are each on their own net (Net 2 and Net 5) and don’t actually switch anything.
2. Missing power routing
- You’ve wired 3.3 V from XIAO-ESP32 directly to the MyoWare VCC and ground, but there’s no way for your battery connectors or switch to feed that 3.3 V rail.
3. No decoupling on 3.3 V rail
- It’s best practice (per knowledge-base) to place both a bulk and a high-frequency bypass cap right at every IC’s supply pins:
- a 10 µF electrolytic or ceramic cap
- a 100 nF ceramic cap
Recommended fixes
- Connect BAT+ pogo → one side of SW → other side of SW → 3.3 V net (same as [XIAO-ESP32:3V3]).
- Tie BAT- pogo to your ground net (same net as [XIAO-ESP32:GND] and EMG ground).
- Add decoupling caps on the 3.3 V rail:
Let me know if you’d like me to place those caps and re-wire the battery/switch nets for you.
Add decoupling caps
Rewire BAT+ through switch
Assign BAT- to ground
Select cap footprints
Choose capacitor dielectrics
