What I used: The inputs I used were photoresistors and for the output I used a servo motor. I tried making it portable but the 9V battery doesn’t work with the servo motor so I just plugged it into my computer.

What it does: When one photoresistor reads a higher value, the flower will point in the same direction where the value was read. I was trying to make something that imitated a flower going towards the sunlight.

 In this video, my phone was using the flash setting so the flower followed where my phone was facing.