How tall would you be as a dinosaur?

This project consisted of a platform with a sliding aluminum bar that measures the size of a kid’s foot and projects on the wall the approximated correlation between a human’s footprint and a dinosaur footprint.

This project was done using an Arduino board connected to 4 IR receivers capturing the reflected IR light of a printed Gray code strip that acts as an absolute encoder. The mapped position is then transmitted via serial communication to a Raspberry PI that calculates the size of the image that will be displayed on the wall.