Fun & Games Technology
Build a MIDI clock to sync to a Gameboy on the cheap

This tutorial shows each step necessary to build a MIDI clock to sync to Little Sound DJ or NanoLoop on a Nintendo Gameboy in order to output beats to the midi instrument of your choice. It lets you synchronize up to six copies of LSDJ or NanoLoop simultaneously to a MIDI clock. Check out this relatively cheap build at the link below.

How to Build a MIDI Clock to Game Boy Sync Thing for Around AU$15