For physical computing this week, I wanted to play with a sensor that takes input from natural things, like light and sound. After many inspirational instructables, I found someone making a sunflower with light as a sensor, using photo-resistors (facing opposite directions) as sensors.
I decided to give it my time because it felt like a gateway into the things I want to make in the future. After getting the general idea, I drew up the circuit and coded the micro-controller to take not just light but the direction of light as its input.
I played with delays, and decided I wanted a slow, more pronounced movement toward the light.
Watch the Sunflower in action: