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31 May 2015
I blogged previously about my Scratch project in this month's Magpi. I also have a Python project in this issue, which creates a text scroller for the Raspberry Pi's Unicorn HAT. You can use it to display any message, and I imagine it could be a useful building block for anyone needing to display output from a robot, Twitter or any other data-based project.
To get started with this project, download the June 2015 issue of The Magpi and read the tutorial there. This project requires two programs, one to make the font (which runs once only) and another to scroll messages (which you use each time you display a message). If you're having trouble getting them working, or just want to spare your fingers, you can download the font maker and download the scroller program. These are both text files - you can copy and paste from them, or you can download them and rename them from .txt to .py before loading into Python.
For this project, you'll need a Unicorn HAT and a diffuser layer from Pimoroni. The Unicorn HAT (pictured below) provides an 8x8 matrix of RGB LEDs that you can control the colour and brightness of. In my project, I've used some simple code to apply different red/purple shades across the message. I got my Unicorn HAT at the Raspberry Pi Third Birthday Party and my starting point for the project was to see how I could use the Unicorn HAT to output information from the Raspberry Pi, rather than purely as a colourful special effect.
The Magpi is published monthly and is the official magazine of the Raspberry Pi. It's available to download for free as a PDF, so get your copy now!
If you're struggling to get it working, you can download the Raspberry Pi file Scratch file. You can also play the game and tinker with its code on the Scratch website.
UPDATE (2019): You can now download the PDF for this project here, under The MagPi's Creative Commons licence.
The Magpi is the official magazine of the Raspberry Pi. It can be downloaded as a free PDF each month, but you can support the Raspberry Pi Foundation by subscribing. Get your copy now!
29 May 2015
Here are some samples from the galleries. Click them to go through to the full galleries. You can browse the full gallery here.
© Sean McManus. All rights reserved.
Visit www.sean.co.uk for free chapters from Sean's coding books (including Mission Python, Scratch Programming in Easy Steps and Coder Academy) and more!
This book, now fully updated for Scratch 3, will take you from the basics of the Scratch language into the depths of its more advanced features. A great way to start programming.
Code a space adventure game in this Python programming book published by No Starch Press.
Discover how to make 3D games, create mazes, build a drum machine, make a game with cartoon animals and more!
Set up your Raspberry Pi, then learn how to use the Linux command line, Scratch, Python, Sonic Pi, Minecraft and electronics projects with it.
In this entertaining techno-thriller, Sean McManus takes a slice through the music industry: from the boardroom to the stage; from the studio to the record fair.
Tips, tutorials and free book chapters for Scratch, a coding language widely used in schools.