Sensor and motor control with the GPIO

OUR EXPERT

Les Pounder is associate editor at Tom’s Hardware.

Over the past few issues we’ve learnt how to create games, control electronics and create shapes by calculating angles, all with Scratch 3. As good as Scratch 3 is there’s only so much that we can do with the GPIO, and the GPIO is the best feature of the Raspberry Pi. So how can we take our Scratch GPIO projects further? Well, for that we need S3GPIO.

S3GPIO is short for Scratch 3 GPIO and it was created by Simon Walters, a Raspberry Pi community member who’s campaigned for children to learn coding and electronics with Scratch. Walters first foray into the GPIO for Scratch was ScratchGPIO, based upon Scratch 1.4. This version is still active – in fact we can find out more at http://simplesi.net.

In this tutorial we’ll install , learn how to use an