Project Start


I’ll complete the schematic, verify power and connectivity, then proceed through PCB setup, placement, routing, and final DRC checks. I’ll pause only if a physical or safety-critical requirement is genuinely unavailable.
The schematic is complete and electrically clean. I’m moving into PCB setup now, keeping the high-current rectifier/buck section, isolated gate wiring, RF module, and cellular connector physically separated.
The electrical design is finished, but PCB progress is blocked by a layout-stackup persistence fault: the project keeps reverting to two copper layers, and routing preflight is therefore not safe to continue. I’m completing the firmware, bring-up, and compliance documentation while preserving the PCB work already done.
Created 5 project docs

Firmware Starter — WeLift Gate Controller

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Arduino/PlatformIO starter for U3 ESP32-S3-WROOM-1U-N16R8. The mapping below is grounded in the live U3 netlist; TXD0/RXD0 GPIO identities a...

Board Bring-Up Plan — WeLift Gate Controller

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Use an isolated, current-limited bench source, DMM, oscilloscope with appropriate differential probing, electronic load, USB data isolator w...

FCC/CE TCF Draft and RF Integration Notes — WeLift Gate Controller

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Host controller using U3 ESP32-S3-WROOM-1U-N16R8, a Wi-Fi/Bluetooth module with U.FL external-antenna interface, plus an optional plug-in LT...

Preliminary Safety Analysis and FMEA — WeLift Gate Controller

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The product presents only isolated, normally-open dry contacts to command inputs of an independently certified gate operator. It does not sw...
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The schematic is complete and ERC-clean, with firmware, bring-up, compliance, safety, and manufacturing files created.
Open blockers
  • PCB stackup repeatedly reverts to two layers due to a platform persistence fault, so routing cannot safely proceed.
  • Cellular-area placement remains unroutable.
  • Production also requires the TVS, cellular connector, fuse-inrush, mounting-hole, and relay-surge items listed in the Manufacturing Readiness Checklist.
Completed files
The stackup fault has been reported internally; routing and manufacturing export remain intentionally unfinished rather than producing an unsafe board.
Fix blockers and review
Fix PCB blockers
Replace input TVS
Verify cellular connector
Review BOM cost