Hardware Troubleshooting¶
Common ESP32 sensor issues and solutions.
Connection Issues¶
WiFi Won't Connect¶
Check: SSID and password in config.py Check: 2.4GHz network (not 5GHz) Solution: Reset ESP32, reflash firmware if needed
Gateway Not Found¶
Check: Gateway running and broadcasting mDNS Check: Same network as gateway Solution: Use hardcoded IP as fallback
LED Indicators¶
- Green blinking: Normal operation
- Red flash: Error condition
- Both off: Not running or powered off
Data Issues¶
No Data in Dashboard¶
Check: Sensor publishing (green LED) Check: Gateway receiving messages Check: BigQuery ingestion working
Erratic Readings¶
Check: Sensor hardware connections Solution: Replace DHT sensor