Sensing Color With a LED and Op Amp

Sensing Color With a LED and Op Amp

Robot Room’s David Cook shows how an LED and op amp, along with a resistor and cap, can be built into an amplified color sensor. Unfortunately, even under the best conditions, photodiodes (and reversed LEDs) don’t provide a lot of current flow. The output of the photodiode needs to be... Read more »

By , 2013/05/20 @ 1:00 pm

Categories: Electronics | 1 Comment