They something like this perhaps?So I looked into this item and does it not need to be programmed with an Arduino? Every time I find something, I realize it is an extension to an Arduino kit. If not, how would I assemble this? Would it almost be like completing a circuit?Try raw IR diode. amazon: SUNKEE 10pcs 5mm 940nm LEDs infrared emitter and IR receiver diode 5pairs diodes.What type of infrared beam would be best? This is my schools first year competing and we need some insight.