## Troubleshooting
### 1) The LED does not work
1) Make sure the Thorlabs LED is plugged in, turned on (turn the dial to a non-zero value) and that the switch is in the **TRIG**er position
2) Reset the Arduino by pressing the white button on the top and restart the program
3) Unplug and replug the Arduino and restart the program
4) Re-upload the code (see section "Arduino Code")