I recently received these
Infrared Diode LED IR Emitter and Receiver for Arduino , Raspberry, TV Controlling 5 pairs https://www.amazon.com/dp/B06XXQV4WL/ref=cm_sw_r_cp_apa_vXNRBbEBEWKDB
And I can’t find any code or circuit info to set these up in a simple break beam configuration. Everything I found is for ir pairs that include some sort of board or breakout or are otherwise already built and ready to use.
Can anyone point me to some resources to figure out how to build a break beam sensor across about a 5" span?