Bot Bench I'd Rather Be Building Robots
Looks like we have a winner! Damien Kee guessed correctly. It’s a pulse meter. It works (well, eventually anyway) by amplifying the difference in the amount of light shining through a finger as more or less blood pulses through it with each heart beat.
Well done, Damien!
Sorry Xander, I would have been happy to keep quiet to let others have a chance at winning 🙂 Rather than sending me one, perhaps you could send one to the person who comes up with the most creative use for such a sensor?
Sounds like an idea. I’ll put up a new contest and you can pick the winner, since it’s your sensor now 🙂
Very cool! Could put it on BP executives and correlate pulse to oil flow.
Remove the LED, teplace the light sensor with a microphone, and you should be able to keep track of beats, and maybe low frequenies.