this kind of optic fiber is probably only plastic so for a full DIY , you can use also fishing wire with a big power led or an old chistmass tree optic fiber lighted.....
I have added a device editor to the server. It uses the sensor types as a group and the sensor variable as the control.
Group (sensor):
Control (sensor variable):
This will be my last post here because my controller has got it's own controller page
@TON-RIJNAARD You need to select the board based on the bootloader you have flashed. Complile the code in Arduino and try burning the hex file using a programmer (USBasp, AVRISP, etc..) if are facing issues with Arduino.
