Complete DIY Velocity sensitive Drumkit project online !

http://www.pjrc.com/tech/midi-drums/drum-intro.html

Maybe examining this project would be useful in cooking up a MIOS one …tho hmm ..could just build this project instead…

I thought that was a MIOS project..  Don’t have time to google for it right now (time to play Santa!)

does anyone know why there are two nand gates arranged as inverters in series on the midiport schematic? What is the point?

http://www.pjrc.com/tech/midi-drums/sch-midi.html

does anyone know why there are two nand gates arranged as inverters in series on the midiport schematic? What is the point?

Just Buffering. The gate delay can be ignored since it’s in the nanosecond range

Cheers,

Skunk