Hello,

I would need to substitute an IR data transfer system (IR led and IR receiver-demodulator at 40KHz) with a laser transfer because using an IR led and a lens is not accurate, the beam spreads as range increases.
I'm working on a lasergame equipment and I would need accuracy.

Data is a byte, in my current project, the signal is PWM at 40KHz. I'm using a PIC16F690.

I have absolutely no idea of what I should use as a receiver for the laser beam, should I use a photodiode/phototransistor? Is there some information available somewhere? Looking in Google didn't bring me any good results.

Any clue would by welcome.

Thanks.