Quote:
a cheap drum machine since it needs to be both portable, battery or cable powered, and drummer-proof.
I kept circling back to that obvious choice, too. I occasionally use an ancient Yamaha RX-21 for that purpose, too (needs a PS, though). Lots of solutions in software, but that doesn't satisfy the third criteria. You'd think that it'd be easy to find something that can count to 24 (pulses).
Without having to breadboard a dedicated circuit solution from scratch, I did recall some DIY kits available at Highly Liquid. More features than you need for this application, plus you'd still have to configure it, then encase it in cast iron. But it'd be a little more cost-effective (and versatile) in the long run.
