PCB Routing Assistance
Worked for 2 mins 7 sec
Applied thermal relief to the targeted GND/DGND/VSS pads on the board: Relief connect, 4 spokes, 0.25 mm spoke width, 45° spoke angle. The follow-up check shows airwire errors on GND-related pads/fill stitching, so the pour may need repour/reroute cleanup next; I did not change placement or routing.
Hey, there are a lot of nets that have "GND" in their name, can you connect anything with "GND" in its net name to the main GND connection?
Thought for 20 sec
I’ll find every net whose name contains “GND”, merge those into the main GND net in the schematic, then run ERC/DRC connectivity checks to catch any remaining split grounds.
Worked for 1 min 44 sec
I checked the schematic netlist and there are no separate “GND” nets to merge: everything ground-related is already on the main ^GND net, including DGND-labeled pins. The remaining GND/DGND items are PCB airwires to ground pads/fill/stitch vias, so the next fix would be repouring/rerouting GND copper rather than changing schematic connectivity.
Repair GND routing
Run route evidence
Check manufacturing readiness
Inspect thermal reliefs
Refine this doc
Ask about this doc
Rev A Simplified Production Status
Objective
Create a simplified WiFi-only Rev A production version of the TRACE Environmental Monitor by removing LTE functionality and reducing routing/BOM complexity.
Completed Changes
- Removed LTE expansion header J18 from schematic and PCB.
- Removed/disconnected LTE-specific nets:
- LTE_PWRKEY
- LTE_STATUS
- LTE_TX_FROM_SIM7600
- LTE_RX_TO_SIM7600
- Marked formerly LTE-related ESP32-S3 pins as intentionally unused/no-connect:
- IO21
- IO7
- RXD0
- TXD0
- Removed unused floating resistor R18 from schematic, PCB, and BOM intent.
- Confirmed J18 no longer appears in the schematic or PCB layout.
- Reduced placed component count from 87 to 85.
- Removed the previous LTE-related dangling/floating trace cleanup issue.
Retained Core Functionality
The simplified design retains:
- ESP32-S3-WROOM-1-N16R8 onboard controller.
- USB-C programming and power.
- 3.3 V power regulation.
- SEN66 interface.
- 4× integrated MAX31865 PT1000 channels.
- 4× condensation sensor inputs.
- RTC with coin-cell backup.
- MicroSD storage.
- Status LEDs.
- Relay/buzzer/power interface blocks.
- WiFi and Bluetooth capability through ESP32-S3.
Current DRC Status
The design is improved but not yet formally clean for manufacturing export.
Remaining formal DRC blocker:
- 6 airwire errors remain.
- They are reported on SHIELD/GND/P2 and auto-generated stitch-via endpoints.
- The router reports
ROUTING_NOTHING_TO_ROUTE, meaning there are no normal signal pins left for the routing engine to route. - Attempts to delete the reported stitch-via UIDs failed because those reported stitch endpoints are not exposed as normal deletable layout nodes.
No current checked blockers were reported for:
- Missing footprints.
- Invalid layers.
- Dangling LTE traces after cleanup.
- LTE schematic nets or LTE header presence.
Manufacturing Export Decision
JLCPCB PCBA exports were intentionally not generated because the formal airwire DRC gate is not clean. Exporting with airwire errors would conflict with the requested target of:
- DRC Errors = 0
- Airwires = 0
- Floating Copper = 0
- Dangling Traces = 0
Recommended Next Step
This appears to require one of the following platform/layout-level fixes:
- Regenerate or refresh GND/SHIELD copper fills and stitch vias so the virtual stitch endpoints resolve.
- Manually inspect USB shield and GND plane connectivity in the PCB editor and adjust shield/ground treatment.
- If the stitch-via airwires are confirmed false positives, request Flux support to clear/regenerate the stale stitch-via state.
After the remaining SHIELD/GND/stitch-via airwires are cleared, rerun DRC and generate:
- Gerbers
- BOM
- CPL / pick-and-place
- Assembly PDF
- STEP / 3D export
- JLCPCB PCBA package
Objective
Completed Changes
Retained Core Functionality
Current DRC Status
Manufacturing Export Decision
Recommended Next Step
