More Dot Matrix Magic

Today I made two last demos with my dot matrix before I clear my breadboard to try out some new things that I recently ordered!

The first is a simple animation of diagonal lines, made for a friend:

The second is something of my own design to try to use a photoresistor with my Arduino. A photoresistor is a simple type of light sensor. It can detect how much light is falling on the sensor. When the sensor does not detect much brightness, the display shows a green moon. When a light is shone on the sensor, the display switches to a red sun! For a simple sensor demo, this is probably my favorite one so far!