MIDItriggs clock out demonstration

YouTube via MusicMiK
"This is the demonstration of my current small project called MIDItriggs, an universal, open-source MIDI to/from trigger interface for old analog beatboxes and drum machines.

This video demonstrates the clock output feature, which is just added "because we can" :)

You can synchronize and control MIDI sequencers using the built-in sequencer of your beatbox, in the case of the Hohner Automatic Rhythm Player, this is some TTL logic with a diode matrix.

Of course, you can also send the machine trigger signals as MIDI notes, but in this video, they are filtered, just the start/stop/clock messages are sent to the RM1x.

The project will be published with source code, schematics and documentation this weekend.

The firmware is smaller than 4 kilobytes and uses less than 512 bytes of RAM, so it can be used on an ATmega48, while using an ATmega88 or larger can even give you boot loader capabilities to update the firmware over MIDI. The MIDIboot boot loader for this is already published."

Update:

MIDItriggs configuration demonstration

"Here, i show you how to update the MIDItriggs firmware if you use the MIDIboot loader in your MCU, which is an ATmega88 in my unit.

Besides this, i show you how the configuration of MIDItriggs works with just one button for the input (and MIDI events to set MIDI channel and the mappings of instruments), while for the feedback, the sound generators in the beatbox are used to give simple patterns telling you the current state of the configuration items.

The source code, schematics and documentation are public now, you can find everything about the project here: http://www.mik-music.org/MIDItriggs

Soon, a new version with completed documentation and PCB layout will follow, the project will grow as i find other units i can attach this nice toy to. The hardware might need changes for some other units, like the Roland CR-78, which also would be an interesting candidate for this, i just don't have one currently, so this has to wait a bit."