| Color | State | Description |
|---|---|---|
| Solid Blue/Green/Yellow/Orange/Red | Button pressed | The LED color represents the current Air Quality Score |
| Blinking Orange | - | Atmotube VOC sensor is heating |
| Solid Orange | USB connected | Atmotube is charging |
| Solid Green | USB connected | Atmotube is fully charged |
| Blinking Red (fast) | - | Atmotube is in bootloader mode and waiting for firmware update |
| Blinking White | - | Hardware error |
| Blinking Red (slow) | - | Low battery. Atmotube is turning OFF |
