A half-opaque, half-transparent acrylic rotates at the top to the model, creating a varying input of light for the photo resistor light sensor housed on the back of the eagle. When the transparent acrylic half is above the sensor, the light is detected and the Arduino activates the motor for the Apollo figurine. When the opaque acrylic half is above the sensor, no light is detected and the Arduino activates the motor for the Artemis figurine.
This project utilizes simple gear and cam machinery paired with stepper motors to move two wooden figurines. The actions of the motors are controlled by an Arduino UNO that uses a photo sensor to detect varying light input.
This project began as an assignment to integrate Arduino technology with the tradition of moving automata in the Things That Think course by Ann and Mike Eisenberg at the University of Colorado Boulder.