KiCad Project Overview
0:00
Work done
- Audited the uploaded KiCad sources and confirmed the original design used mixed packages: all checked resistors were already 0603, while multiple capacitors in the KiCad PCB were still 0805 and needed migration.
- Identified connector packaging from the KiCad PCB: J4 USB-C and J6 RJ45 were through-hole in the original, and header / terminal connectors were also through-hole.
- Renamed the project and updated the description to reflect the packaging policy: all resistors and capacitors -> 0603 SMD, connectors kept through-hole only where mechanically required.
- Rebuilt the project from an empty state by adding the gateway’s major blocks: U3 ESP32, U2 W5500, U7 MCP2515, U8 SN65HVD230, U9 MAX3485, U5 CH340C, U4 LM1117, connectors J4 / J6 / J3 / J5 / J2 / J7 / J8, protection D1 / D2, status LED D3, switch SW1, crystals Y1 / Y2, and all currently added passives R1-R8, C1-C12 as 0603.
- Created project files for traceability: Design Notes and Firmware Starter.
Success criteria review
- ✅ The project metadata and newly added passive components now follow the 0603 SMD packaging policy.
- ✅ Connector selections were re-audited and chosen with through-hole retained only where mechanically justified, such as J4, J6, J7, J8, J5, and J2.
- ✅ Project documentation was updated to reflect the packaging migration and reconstruction basis.
- ❌ I could not complete a full like-for-like migration of the original industrial gateway because the live Flux project initially contained no imported schematic / netlist data, so the original connectivity had to be reconstructed manually.
- ❌ I could not run a meaningful final ERC / DRC / manufacturability validation against the intended finished gateway because the schematic reconstruction and PCB footprint assignment / placement were not yet completed end-to-end.
- ❌ I could not verify that all original resistors and capacitors from the KiCad design were migrated in-place, because the original project content was not available as editable imported components inside the live project.
Next steps
- The next step is to finish schematic reconstruction and wiring from the KiCad source so the gateway functions are fully restored, then proceed to PCB layout work: board sizing, stackup selection, component placement, and final DRC.
- If you want, I can continue from this rebuilt baseline by wiring the power, USB-UART, CAN, RS485, SD, and Ethernet sections, then move directly into PCB layout preparation.
3 days
Refine this doc
Ask about this doc
Firmware Starter
Platform
- MCU: ESP32-WROOM-32E
- Recommended framework: ESP-IDF
Pin Mapping
| Signal | ESP32 Pin | Peripheral | Notes |
|---|---|---|---|
| TODO | TODO | TODO | To be filled after live wiring is completed |
Initialization Sequence
- Initialize power-good assumptions and GPIO defaults.
- Configure UART0 for boot log / CH340C bridge access.
- Configure SPI buses for Ethernet, CAN controller, and microSD.
- Configure I2C pins and enable internal/external pull-up assumptions.
- Configure status LED and user switch GPIOs.
Build and Flash
- Install ESP-IDF.
- Select the ESP32 target.
- Build with
idf.py build. - Program through the USB-UART bridge once final BOOT/EN wiring is confirmed.
Welcome 👋
Flux helps you build PCBs faster with an AI teammate!
Create your account to collaborate, stay updated, fork your own version, and get instant answers from our AI agent.