Building a MIDI device is always a great microcontroller project, and nearly everyone has an old toy keyboard lying around in the back of a closet or in the basement. [JenShen] decided to take one ...

Lots of MIDI recorders/players use the piano roll as a model for input — time scrolls off to the side, and a few illuminated pixels represent a note played. She’s using the pixels to paint ...

The keys are the standout feature of this MIDI keyboard, however, as they give the impression of playing on a ‘real’ piano, no matter what kind of sounds you’re making. There are larger ...