Thanks for the head start. If you know anyone that would like to draw up the circuit, let me know. It started out as a simple circuit, (it probably still is), but I am sure I will need help. The schematics you linked me to will be very helpful.
Thanks
Mike
THe output I would like to read on my PC, I will have to have the sensors pigtail to fit my I/O card.
I am planning to use the black housing. THe PIN doiode is a cool idea, I will look into that.
How do I wire up the diode? Is there anything I should consider? I just want to be able to...
More like a hobby.
I want to be able to determine how long my sensor is blocked. So for starters, I need to know what type of sensor to use. You suggested a photodiode so I will look into that (thanks). Next I need to know how to wire it so that ambient fluctuation does not interfer with my...
Thanks for the reply,
650nm, Spot? .125 spot, and power I am not too sure about. Photodiodes are like 4 bucks each. Thats a little high for me. LDR's can be cheap, but I am concerned about their dissipation rate.
What do you think?
and thanks again.
