Bi-Directional Led Sensing
I have been working on Bi-Directional Led sensing for a school project. I have managed to build a prototype with just 1LED and a processing sketch to visualize the input which works perfect.
Also I built a version with 2 LEDs which is not as good as the previous one. I can get response from the both Leds but they are interfering with each other most of the time.
I am using the built-in pulseIn function of the arduino to measure the time of the Leds go from LOW to HIGH. With just one led it is perfect, but when I add more then 1 LED, two or three LEDs , lets say, they go into a weird condition.
If anyone have some experience with Bi-Directional Led sensing with more then 1 LED, I will be glad if you share.