Seed Accelerator Pod v2 Design
Thought
Work completed
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Project description updated with modular three-board summary
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System architecture defined and saved as Mermaid diagram
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Key ICs added:
- ESP32-WROOM-32 as U9
- MCP3008-I/SL as U2
- PCA9685 LED driver as U4
- DHT22 sensor as U3
- TLP281-4 optocoupler as U5
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Power components added:
- MP1584EN-LF-P 12 V→5 V buck converter as U10
- SMBJ12A-13-F TVS diode as D2 (configured for 12 V stand-off, ≥600 W surge)
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Supporting passives placed: generic resistors (6×) and capacitors (11×)
Tasks remaining
- Add reverse-polarity Schottky diode (D1)
- Add and configure slow-blow fuse (F1, 2 A, 12 V)
- Place Raspberry Pi 40-pin header
- Add JST-VH 3-pin power connectors and 2.54 mm stacking headers
- Wire all nets between power, ICs, connectors, and headers
- Complete schematic review for ratings and functional coverage
- Prepare PCB layout (footprints, stackup, board sizes)
- Generate ERC/DRC-clean Gerbers, BOM, PnP, and bring-up checklist
Can’t do
- Picking/placing Schottky diode D1 for reverse-polarity protection
- Picking/placing slow-blow fuse F1 and configuring its ratings
- Adding Raspberry Pi 40-pin through-hole header (library part unavailable)
Success criteria
- Schematics/layouts compliant with Seeed requirements: ❌ not yet met
- Boards sized and ERC/DRC-verified: ❌ not yet met
- Bring-up checklist created: ❌ not yet met
Next step
Pick and add the JST-VH 3-pin power connectors and the 2.54 mm stacking headers to your schematics so we can complete inter-board connectivity.
Flux stopped
