Brewskio:
Hi everyone. I am nearly there on my laser harp project. I only have the sensor left. (albeit this may be the most difficult part) I am thinking of using a light to voltage sensor like the TSL257 or a light to frequency sensor like the TSL235R. I'm not sure which would be best or if either would work. I was thinking about adding something like a bandpass filter to filter out any light that isn't on the wavelength of my green laser(562nm) but I am unsure how to do this in combination with one of the light sensors. Any ideas out there from someone who has experience with either of these sensors or with bandpass filters?
I don't see any description of what is REFLECTING the laser light. IF it is a common back-silvered glass mirror, you will get two reflections. One from the front glass surface and one from the back surface.
Paul