5.2 LED Status Troubleshooting
LED Sequence | Description | Diagnosis | Action |
---|---|---|---|
All LEDs are OFF | Board is not programmed | Download the image .hex file from GitHub
or the AVR-IoT website | |
Only Red LED is ON | Indicates a hardware fault issue with the development board | With debug option enabled in MCC, connect to serial
terminal and pass the command ‘debug 4 ’. This will
print out the log indicating the cause of the error. | |
Blue LED BLINKS slowly (at 0.5s rate) with all other LEDs OFF | Board is in Soft AP mode |
| |
Blue LED BLINKS quickly (at 0.25s rate) with all other LEDs OFF | Board is not connected to an access point and trying to connect. |
| |
Green LED is BLINKING; Blue LED is also BLINKING quickly (at 0.25s rate) | Board is using WiFi DEFAULT CREDENTIALS |
| |
Blue LED is ON, Green LED is BLINKING |
Board is not connected to the AWS Cloud Servers |
| |
Blue and Green LEDs are ON but Yellow LED is OFF |
Sensor data is not being published to Cloud |
| |
Blue and Green LEDs are ON. Yellow LED is BLINKING. |
Everything is working |
| |
OR |
Blue and Green LEDs are ON. Yellow LED held high/low. |
Subscribe topic toggle value received |
|
LED Sequence | Description | Diagnosis | Action |
---|---|---|---|
PKOB nano LED is OFF | Board is not powered |
| |
PKOB nano LED is ON but CURIOSITY driver is not found | Faulty USB connection |
| |
PKoB nano LED is blinking | Debugger is working | No action required. Refer to the AVR-IoT Wx Hardware User Guide for more details. |