I'm trying to design a circuit to measure the ambient visible light (380nm to 750nm). Accuracy isn't too important.
I've been looking at photodiodes, but I'm not sure how to connect them up.
I need the following requirements from my circuit:
- low power
- low accuracy
- low cost photodiode (e.g. this on digikey)
- AD convert signal for uC
I was thinking of some sort of voltage divider with a photodiode in the circuit? Then connecting this to an op amp, before going to the AD pin of a uC.
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