Status LED Indications on the AVR477 Remote

There are two LEDs on-board the AVR477 Remote – one under SW9 and another under SW10. The LED notifcation behavior is explained in the following table.

Table 1. LED Notifications on the AVR477 Remote
Action LED Behavior
MCU Active state Both LEDs (under SW09 and SW10) remain turned ON
MCU Sleep state Both LEDs are turned OFF
Any touch key press LED under SW10 goes from ON to OFF state and remains OFF as long as the touch key is pressed. When the finger is removed, it turns ON again.
Wheel rotation LED under SW10 toggles as long as the rotation is done. Once the finger is removed, the LED remains ON.
resetToFN When SW10 is long-pressed, the LED under SW09 goes from ON to OFF state and remains OFF for about 2 seconds and then both LEDs blink once and turn OFF.
resetDeviceToFN When SW13 is long-pressed, the LED under SW09 turns OFF for about 2 seconds and turns ON again. LED under SW10 remains ON.
Successful Touchlink When SW09 is pressed, after approximately 5 seconds, both LEDs blink three times to indicate successful touchlink. After this, both LEDs are turned ON.
This is also provided in the Quick Start Guide of the ATSAMR21-LED-Driver board.