External trigger question on photodiode [resolved]
Hi! I am trying to replicate the method explained here:
"External Triggering The Harder Way (Firmware 1.x.x)" once I am using a photodiode as a trigger.
But without success, I woul like to know if the code explained in the last box
"The code to read this trigger input is quite similar to the previous button code. In this case, we need to use a different pin (pin 18) and watch for the falling edge of the trigger."
Should it be entered smomewhere? (I am using windows).