Detecting a higher voltage on a Raspberry PI pin In a Raspberry PI application I made recently I wanted to detect if a 24 volts circuit was powered. As you probably know the Raspberry PI pins can only handle […]
Arduino button class I’m currently working on power control and switching system for a model railway, and I was in the need of a good way to handle buttons, so I created a […]
Driving a 12V led from a 5V Arduino pin Today i ordered some big illuminated arcade style push buttons for a project. Each button has a built-in led that should be powered with 12 volts, but the Arduino pins […]
Step Brother 16 Step Brother 16 was a DIY x0x-style step sequencer based on Arduino and Renoise that i designed and built a prototype of in 2011.
Beware of the dreadful MIDI running status! Devices that send MIDI messages may have implemented the “running status” which means the status byte may be omitted if it’s the same as the previous status
Drum pads of the forest Drum pads built into pinewood stumps based on Arduino and simple piezo elements. They can be used to trigger sounds via MIDI
