Arduino Solar Cell-Based Detector

*Proof of Concept Warning*-*Proof of Concept Warning*-*Proof of Concept Warning* Mission: Utilize a solar cell to vary the intensity of an LED Supplies: Arduino Duemilanove <–> USB <–> Notebook (Linux, por supuesto) Breadboard, Jumper Wires, Make-shift Jumper Wires (spare resisters), LEDs, Solar Cell Setup: Here it is The setup is pretty straight forward: Read analog, write digital. The primary hurdle was figuring out the initialization step. Basically, I needed to provide a time-frame where you can read in minimum / maximum values from the cell. The LEDs in the awesome video below show the results… v This project is full of take-off ideas. Reverse the range on the LED outputs, and you have a setup that powers up a light as the ambient light levels fall. Motion detector…you bet. You could implement a setup to run the initialization cycle at intervals, to provide a real-time average light level, and check for a delta of some size. Boom. There you go. I’ll clean up the code, use some real jumpers, horse around with things in general, and throw up a post. With a snippet. Check back.