LEDs status indication¶
The two LEDs located on the top-right side of the dongle are used to indicate the status of the BSEC algorithm and IAQ accuracy state:
| LED | State | BSEC Status |
|---|---|---|
| Blinks 1x per second | IAQ Accuracy = 0 | |
| Steady ON | IAQ Accuracy = 1-3 (IAQ value is valid) | |
| Short blink | BME680 data read (report sent) | |
| Steady ON | ERROR! Problem talking to the sensor |
Accuracy lock
The BSEC algorithm usually takes about 5 minutes to provide a valid IAQ value (Accuracy = 1) after start.