Ben Miller has written a great beginners’ article about hooking up a small piezo buzzer to the Pi’s GPIO pins to simply create a sound. He’s using C to do it, which is a shame as I think Python would have been more appropriate for beginners, but I daresay something similar could be done in Python without much effort.
Matthew Timmons-Brown (who presented the brilliant keynote at the last CamJam and runs his own YouTube channel) has written an excellent tutorial on using tiny OLED displays with the Raspberry Pi.
Muhammad Furqan has written an in-depth piece on intenseschool.com about using the Pi to record syslog messages sent from multiple network devices.
Leo White has been working on getting the Pimoroni PiGlow working with RISCOS. He’s managed it and has posted the BASIC code up so that everyone can do it! This opens up a whole world of opportunity for RISCOS on the Pi as up til now it’s been difficult, possibly even impossible, to get expansion boards working.
Jeremy Blum has hacked an open source BADGEr which is an e-paper conference badge into a weather station using a Pi. The BADGEr is an e-paper display mounted on a shield with an ATMEGA328 onboard. He wrote some new firmware for the BADGEr and communicates with it over serial to display weather information grabbed from internet APIs using the Pi. It really is a lovely little project 🙂
More information about the BADGEr card can be found here and complete instructions and source code for you to make your own is available on Jeremy’s blog.
You can buy a BADGEr for $50 + P&P from Seeed (thanks to Björn Söderqvist for finding this!). You could also do something similar with this cheap e-paper display from Embedded Artists.
@smstext has been building a Geocaching project with his Raspberry Pi. It’s still a work in progress at the moment but you can read about what he’s done here.
