ESP32 MIDI drum module

prusaprinters

<h5>Overview</h5><p>This is a 6-channel opensource MIDI drum module using an ESP32 or Teensy micro-controller.</p><figure class="media"><oembed url="https://www.youtube.com/watch?v=YWE1LgwQbbQ"></oembed></figure><p>This module uses the excellent <a href="https://github.com/corrados/edrumulus">Edrumulus</a> software to analyze the incoming signals and forwards it to a host machine (like a Raspberry Pi or desktop computer) over USB serial, where it's converted to MIDI so it can be processed in a DAW (like Ableton, Logic, Cubase etc), using a drum VST like <a href="https://www.xlnaudio.com/products/addictive_drums_2">Addictive Drums </a>or <a href="https://www.toontrack.com/product/superior-drummer-3/">Superior Drummer</a>.</p><p>Tested with the following pads:</p><figure class="table"><table><tbody><tr><td>Drum-tec Diabolo&nbsp;</td><td>Snare</td></tr><tr><td>Roland KD-120BK</td><td>Kick</td></tr><tr><td>Roland CY-5</td><td>Hihat</td></tr><tr><td>Roland PD-5</td><td>Tom</td></tr><tr><td>Roland PD-5</td><td>Crash</td></tr></tbody></table></figure><p>&nbsp;</p><h5>Bill of materials</h5><p>For 6 channels, you'll need the following hardware:</p><ul><li>1 x Rocker switch</li><li>1 x Micro-USB extension cable</li><li>1 x ESP32 (or Teensy 4.x) micro-controller</li><li>3 x 5 by 7 cm PCB</li><li>1 x LED</li><li>6 x 1/4 stereo jack female PCB mount (3 pins)</li><li>14 x BAT85 diode</li><li>14 x 22k Ohm resistor</li><li>7 x 100k Ohm resistor</li><li>2 x 10k Ohm resistor</li><li>12 x M2.5 12mm screw + nut</li><li>4 x M3 25mm screw</li><li>4 x M3 10mm screw</li><li>6 x M3 nut</li><li>4 x M3 threaded insert</li></ul><h5>&nbsp;</h5><h5>More info</h5><p>The schematics for the drum module can be found here: <a href="https://github.com/corrados/edrumulus/blob/main/hardware/prototype2/edrumulus.pdf">https://github.com/corrados/edrumulus/blob/main/hardware/prototype2/edrumulus.pdf</a></p><p>Any questions about edrumulus should be asked in the discussion forum: <a href="https://github.com/corrados/edrumulus/discussions">https://github.com/corrados/edrumulus/discussions</a></p><p><i>Happy drummin!</i></p>