I'm building a laser shooting range. One shield, two guns. Is it possible to send information within 10ms identifying which gun hit? Have you checked what the highest frequency can be recognized using such a laser?
@tomaszw3322 That's an interesting use-case for it. Yeah, I think that within what would appear to be a quick flash to the human eye, you could absolutely send enough information to encode a gun Identifier. It's been years since I benchmarked this project to see how fast it could reliably transmit, but I believe it could easily be under 10ms
@user-qd4be9zp1k Its powered through the data pin it's connected to. I can't remember the exact pin number (I'm on the road). The laser pointer on button is held down by a rubber band so as soon as the pointer receives power, it's on.
I haven't seen the video but I have transmitted an analog audio signal over laser. It was actually much easier. You don't even need an Arduino. I can't remember what the audio source was. It was probably the headphone jack on a laptop. If I remember correctly, I cut the headphone wire and connected it directly to the laser. On the other side I cut the wire going to some speakers and hooked that directly to the solar cell. At most you would need a transitor, but I don't even think I used that. I'm pretty sure there are some good tutorials out there on it.
This video is about 8 years old if I remember correctly. Back then, I did experiment with it to see how fast I could get it before the data would start to break down, but I can't remember what the top speeds were.
