KiCad USB-C/Temp and Fan control PCB Review
Budget: $10 – $30 USD
I have a KiCad schematic and board layout ready and now need a second set of expert eyes before sending it to fabrication at JLCPCB. The board carries two USB-C passthrough channels that can be switched on or off by two relays, plus a temperature sensor for basic thermal monitoring. My main worries are:
• USB-C passthrough—both power-delivery paths and high-speed data lines must stay within spec.
• Relay circuitry—correct orientation, fly-back protection, trace widths and clearances so the USB-C rails really turn off when commanded.
• Temperature sensor—proper footprint, pull-ups and placement for accurate readings.
Everything (may) currently be mapped to “Standard” JLCPCB parts where possible to keep the BOM cost-effective. I’d like confirmation that each footprint matches the part number, no extended-library components slipped in, and that any obvious layout or signal-integrity improvements are flagged.
Deliverables
1. A short written report (PDF or Markdown) listing any issues found, why they matter and suggested fixes.
2. Mark-ups on the KiCad schematic and/or PCB file showing exact locations of the problems.
3. An updated BOM if you recommend part substitutions that keep us in the Standard tier.
If it all looks sound, a simple “ready to fab” note will do. Files are attached and I can answer further questions right away.
• USB-C passthrough—both power-delivery paths and high-speed data lines must stay within spec.
• Relay circuitry—correct orientation, fly-back protection, trace widths and clearances so the USB-C rails really turn off when commanded.
• Temperature sensor—proper footprint, pull-ups and placement for accurate readings.
Everything (may) currently be mapped to “Standard” JLCPCB parts where possible to keep the BOM cost-effective. I’d like confirmation that each footprint matches the part number, no extended-library components slipped in, and that any obvious layout or signal-integrity improvements are flagged.
Deliverables
1. A short written report (PDF or Markdown) listing any issues found, why they matter and suggested fixes.
2. Mark-ups on the KiCad schematic and/or PCB file showing exact locations of the problems.
3. An updated BOM if you recommend part substitutions that keep us in the Standard tier.
If it all looks sound, a simple “ready to fab” note will do. Files are attached and I can answer further questions right away.