Your product links are identical.Can I get this straight - you plan on using reflected IR light to trigger your sensor?
Hello all, I need help/advice building a circuit that will detect a bullet passing over its sensors
Suggest you might want to think about using a sound sensor to listen for the shock wave that the passing bullet creates. This then does not rely upon accurate "aiming" of your proposed photo detector.
By the time the micro sees the pulse and runs the code that says "I saw it", the bullet will be 100 yards downrange.
QuoteBy the time the micro sees the pulse and runs the code that says "I saw it", the bullet will be 100 yards downrange.I think this is exaggeration. A busy-polling loop even on an Arduino should detect the passage of the projectile before it has travelled it's own length, given a fast enough detector.Besides, it may not matter about latency, as long as the latency is consistent.
How many Arduino instructions can you execute in that time frame
remember every Arduino instruction is a layer of C code underneath