Raspberry Pi Scratch Robot | Eric Barton Fuller I found an application for the Raspberry in my classroom! With the endless possibilities of the Raspberry Pi in education, it is difficult to focus on one application. This is my attempt to document a focused application. I am sure this idea will branch out into other ideas or supplemental ideas will follow. Goal: The students are presented with an easy to develop hardware system on top of the robot chassis consisting of the Raspberry Pi, Pi Cobbler, Battery pack, H-bridge motor controller, and a Breadboard. The students are presented with an easy to use graphical/block based software programming environment using a modified version of Scratch for the Raspberry Pi which allows for control of GPIO pins. Students will be provided with resources such as wiring pin-outs, diagrams, schematics, hardware tutorials, software tutorials so they may create working robots in class (hopefully in about 10 minutes). Autonomous vs. Summary: This project will take a work on the back end. Resources:
Using a camera with Scratch on the Raspberry Pi | Matthew Venn I needed camera control with Scratch on the Raspberry Pi for a primary school aerial photography project. I added a new python extension for Simon’s ScratchGPIO that allows either the Raspberry Pi camera or a regular USB webcam to be used with Scratch. Follow Simon’s instructions for installing over on his site. Add your camera – if you’re using the Raspberry Pi camera, follow their instructions here. After you’ve started scratch, all you need is to make a broadcast block and set it’s message to ‘photo’. This program starts automatically, then in a loop flashes an LED on pin 8 and takes a photo. Photos are stored in /home/pi/photos, each photo has a number that increases as the photos are taken. Make sure you delete/backup your photos regularly or you’ll run out of space fairly fast!