sacredhotdog / gram_piano

A keyboard that allows you to play music with capacitive touch inputs.

NOTE: This product has been retired from our catalog. If you are looking for more up-to-date info, please check out some of these resources to see how other users are still hacking and improving on this product.

• SparkFun Forum
• IRC Channel

Gram Piano

Gram Piano Kit (KIT-11835)

The Gram Piano is a capacitive touch keyboard and soldering kit that allows you to create and play all the notes of the C major scale and outputs sound through a PCB Speaker. A different octave can be selected with the potentiometer. Pressing the on board button will start/stop playing a melody. Feel free to adapt the keys to play other notes/scales/melodies or perform tasks as you see fit.

This board was created in Eagle v6.0.5, this firmware was created in Arduino v1.5.2

Repository Contents

• /Firmware - Firmware the board ships with.
• /Hardware - All Eagle design files (.brd, .sch, .STL)
• /Production - Test bed files and production panel files

Documentation

• Hookup Guide - Basic hookup guide for the Gram Piano.

Product Versions

• KIT-11835 (RETIRED)

Version History

• vH10 Initial Redboards.
• vH05 Third protoboard run.
• vH04 Second protoboard run.
• vH03 First protoboard run.

License Information

The hardware is released under Creative Commons Share-alike 3.0.
All code is open source so please feel free to do anything you want with it under the Beerware license.