Sun flower

I took practical electronics seminar in my first term at MIT. I learned how to use op-amps, transistors, capacitors, etc. At the end, Gabriel N Sanchez, Juan Antonio Gonzalez and I built a group project, a sun flower that follows the light. It was a wonderful experience to work with these two amazing people. It was the process of building the sun flower that brought me to the electrical engineering world.

Here is the circuitry:

 

From the front of the sun flower:

 

From the back of the sun flower:

 

The whole picture:

 

Here is a demo. Click the link to download the video.[616KB] The sun flower follows the light!