This is a project to control a model I made with the Lego WeDo robot kit. You can see a video of this robot in action here: https://vimeo.com/132614609 If you place an object in front of the white jaws, the jaws will open, and the arm extend until the object is within reach of the jaws. The jaws will then close, and the arm will retract, taking the object back with it. The hardest bit about this project was getting the one motor to both open and close the jaws, and extend and retract the arm. Because the distance sensor is placed above the level of the jaws, the grabber will only get object that are tall enough to trigger the sensor. You can see more photos showing how I made it if you look inside the project.
A Komaba original
