Published on January 23, 2017
Mini Pops drumcomputer based on the BeatBox invention by Pjd.
this project can be found here : http://littlebits.cc/projects/arduino-lo-fi-80s-drum-machine
So, what has changed here ?
For the project to work as expected, 2 modules have to be made from the HDK ( Hardware Development Kit ). These modules are a low pass filter ( designed by jpd ) and a voltage drop regulator ( this rejects noises and humming ).
For the sync output, we need a optocoupling circuit ( made of standard littlebits modules ), separating the 2 working voltages.
Duration: 1 hour