Blink Codes

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github-actions[bot] edited this page Mar 20, 2026 · 1 revision

Device blink codes

Every 5 seconds:

1x everything is OK
2x no inverter connection
3x no MQTT connection
4x no Wi-Fi connection

Default LED pin

The default status LED pin is:

GPIO2 (D4 on the Wemos D1 Mini ESP32 layout)

The LED pin can also be changed in Device Settings.

Brightness

The default LED brightness is 128.

Brightness can be adjusted in Device Settings.

If something does not work, start with wiring, settings and the Debug page.

Solar2MQTT is a community project. Some devices work immediately, others need a little troubleshooting and a good debug report.