Conor O’Neill has worked out how to get the Arduino and the Pi communicating wirelessly using some cheap nRF24L01+ modules. These things cost all of 1.26 Euros and seem like a great addition to your electronics kit.
Karaoke machine with a #RaspberryPi and USB microphone
Over at Pi Fun, Dextrus has written a tutorial on creating a karaoke machine with the Pi. You just need a USB microphone and he recommends running it headless using a wifi dongle.
Here it is in action:
#RaspberryPi moisture sensor tutorial
Jeremy Blythe has written an excellent, in-depth tutorial to help you read moisture levels using an analog sensor. Particularly of interest to me is the wiring up of a MCP3008 analog-to-digital converter. It will come in most useful when I decouple the Nwazet Key Lime Pi and replace it with just the chip.
Public transport tracking with a dot-matrix wall board and a #RaspberryPi
Pavel Shved had a problem. He was always late for the bus. So, he found one of those dot-matrix wall-boards…
wired it up to a Raspberry Pi, wrote some code to grab and display information from the internet about bus routes and where the buses are and mounted it on his wall. Great project.
Fixing Errors While Upgrading #RaspberryPi
Over at CodingEpiphany.com, they’ve written a blog post about correcting errors from apt-get update/upgrade. Take a look if you’ve ever had problems.
RasPi.tv shows how to use the PiGlow for #RaspberryPi with GPIO control
The PiGlow is a lovely little GPIO board from Pimoroni which features three arms of ultra-bright LEDs. Alex over at RasPi.tv has put it together with his own circuit board and, in his new video, shows us how to control it with GPIO buttons.
An excellent demonstration of the capabilities of the PiGlow and an exciting preview of what is a very useful new upcoming board.