Hi I was wondering if anyone can help me. I have an arduino board that I recently purchased and on pin13 I have an IR transmitter diode on it. I am trying to get it to emit a signal but it doesnt seem to be powering up. I have tried replacing the IR transmitter but its still doesnt work.
(tip: Use a digital camera's viewfinder (not a DSLR (!), unless it has live view), video camera or phone camera to view IR LEDs - they're usually sensitive enough in this part of the near-IR spectrum to get some idea of whether the LED is emitting or not)