Use Your Senses
This project uses the slider, light sensor, and resistance sensors on the PicoBoard to connect your Scratch project to the physical world. The two examples create musical fruits and veggies and a PicoBoard joystick.
Exploring the PicoBoard sensors
One of the great all-around add-ons for Scratch is the PicoBoard, which plugs in very easily to the Raspberry Pi. In a previous issue of Raspberry Pi Geek, I introduced the resistance sensors on the PicoBoard by attaching them to a thermistor and measuring the resistance values of melting or warming water [1]. This time around, I'll show you two animations you can do with the PicoBoard as educational projects or part of a larger project.
The first example uses musical fruits and veggies to explore the sound sensor and create some music scripts using the sound blocks in Scratch. If you don't have a PicoBoard [2], the scripts shown here will still give you ideas and actual snippets of code that you can use to add music to other projects.
The second example creates a joystick to control the speed and direction of a sprite by using the slider and light sensor. The second half of the script demonstrates a universal way to move sprites to the opposite side of the stage after it passes the boundary.
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