Handy device that you can use to inform people outside your dorm on whether you are available, working, sleeping, or in need of solitude
The second prototype did not use a breadboard, instead I soldered the cables to the resistors to the LEDs. The anodes are all soldered together and the cathod so the LEDs are toggled by manually providing power to the desired LED.
The goal of the fifth protype was to reduce parts, size, and costs, as well as make it battery powered. We used an ATTiny45, a capacitor, four resistors, a push button, jumper cables, and RGB LED. In order to make it battery powered, we drastically reduced the frequence of the internal oscillator as well as made the LED pulse at interval instead of constnatly on.