As a Mechanical Engineering Major enrolled in SEAS 1001, we were given the opportunity to create projects on Tinker CAD, a computer aided design software, in order to design 3D tools such as wrenches, and nuts and bolts (stl file of these projects included for preview of the project). We were also given the opportunity to code a censor (schematics included in the image below), which would contain two lightbulbs, one which was lit while there was no motion detected, and another which was lit when motion is detected.
The image above depicts the finished 3D print of the wrench, nut and bolt.