Hi. So I'm trying to use an LED as a light sensor by applying a positive voltage to it backwards and then counting down how long it takes to get to 0V, similar to this:
the problem is, whenever I try to solder anything on to the LED, it takes far less down to count down. I'm guessing I'm changing its capacitance, but I'm not sure. Am I just epically bad at soldering or is there some way to not screw up the LED?