Hi all, I'm trying to create a circuit that has 3 sensors on it - an LM35 temperature sensor, a photocell for light level measurement and an MQ2 gas sensor shield for pollutants. I have a circuit that is working, but as soon as I added the photocell, the readings off the LM35 increased by a approx…

Higher reading when 2 sensors in circuit

MarkT August 18, 2012, 12:53am 3

Schematic?

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