midi drum m2

The Bleep Drum

Rad-fi drum machine with sequencer, pitch-adjustable samples, and MIDI.


Instructions & parts list | User Guide & hacking info | Bleep Drum Code v009 | Dam Drum 2 code | Schematic | Eagle files

The Bleep Drum is an Arduino based lo-fi rad-fi drum machine designed by Dr. Bleep.

- Four sounds, two with pitch control
- Four selectable sequences with 32 steps each.
- Record patterns just by playing them
- Tap tempo
- Reverse mode
- Hypernoise 30XX mode
- Stereo 1/8″ output

Now Available with MIDI!

The Bleep Drum is available as a fully built device with a MIDI input. This allows you to trigger the four samples, toggle noise and reverse modes, as well as change the pitch of all four samples with any device that can send MIDI.
There is also a MIDI retrofit kit that can be soldered on to any existing Bleep Drum to add MIDI support.

MIDI implementation and user guide.

drum midi kit parts 600

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How do you listen to it?
The Bleep Drum has a phased stereo 1/8″ output. This means that through headphones it will sound nice and huge even though it’s really just a mono signal that is flipped on one channel.
To plug it into a mixer, amp, USB interface, etc, a mono cable must be used.

The MIDI retrofit kit works with any Bleep Drum?
Yes. The retrofit kit includes a chip programmed with the newest Bleep Drum code. This contains the Bleep Drum sounds so if you can upgrade from a and Dam Drum hardware but the sounds will be that of the Bleep Drum. Soldering is required with this kit.

Can I add my own sounds?
Yes but you have to mess with the code a bit. See this guide for more info.

How is this different than the Dam Drums?
The Dam Drums are limited edition devices for Dam Funk. The Bleep Drum is the same hardware but has different sounds as well as HYPERNOISE 30XX mode.

midi drum m1

midi drum m2