The AVR ONE! front panel has four LEDs which indicate the status of current debug or programming sessions.
Table 4.1. LEDs
| LED | Icon | Description |
|---|---|---|
| Main power |  | RED when main-board power is OK |
| Target power |
| GREEN when target power is OK. Flashing indicates a target power error. Does not light up unless a debug session connection is attempted. |
| Target run |  | GREEN when the target is running. ORANGE when target is stopped |
| Communication |  | GREEN when a session with the host computer is active |
