Expanded the schematic from 92 to 172 components with:
- Six-cell graphene/EDLC supercapacitor interface
- External 4S LiFePO₄/BMS interface
- Isolated charger and bidirectional converter interfaces
- Channel 4 auxiliary self-power path with startup-power ORing
- ESP32-WROOM-32E and three ADS1115 telemetry ADCs
- Independent hardware charger/inverter shutdown
- Protected 40 A-class external inverter interface
- Separate HV
GND and low-voltage LV_GND
Floating comparator and control-power errors were corrected; floating-pin and missing-power checks are now clean.
Open items
- Exact isolated charger, bidirectional converter, BMS, and active supercapacitor-balancer modules require measured capture voltage, source impedance, and sustainable power.
- The new components still need PCB placement; routing has not started.
- The inverter remains an external certified module rather than onboard mains circuitry.
Project files
Next steps
- Re-size and place all 172 footprints by power domain.
- Select the external converter and BMS modules from measured source data.
- Apply HV/high-current layout rules and isolation boundaries.
- Review placement before routing.