PA Designer Learn 2: LED and Loudness Sensor

5. Troubleshooting the LED

Did you see the LED flash on and off? 

If not, check all of the following and re-run your code: 

      1. Have you plugged the LED board into the Analog Digital 1 port?
      2. Does your code initialize the LED using port “AD1”?
      3. Are both ends of the connector cable fully inserted?
      4. Is the LED seated with the positive leg in the hole marked (+)?
      5. Is the LED fully inserted? (see image above)

If you still see no flashing LED, you could have a faulty LED. Try swapping your LED for another one.