most drum sequencers are complex machines - packed with buttons and leds, all driven by a microcontroller. for the mki x es.edu diy drum sequencer kit, we decided to take the opposite approach: a hands-on rhythm engine with a minimalist interface, built from just a handful of logic chips. each of the sequencer's four channels
is programmed in real time using a single button. patterns loop automatically, can be shortened on the fly, and support half-time playback for slower, evolving grooves. accents are handled using synced lfos, while a simple resistor-dac turns patterns into stepped control voltages - perfect for modulating pitch, decay, or other
parameters. whether you're looking to learn about sequencer design, sharpen your soldering skills, or just want a drum sequencer that plays like an instrument, this diy kit packs surprising depth into a refreshingly simple interface.
features and specifications:
4 independent channels with one-button step input/removal
16 steps per channel, individually reducible to 12 or 7
optional half-time mode per channel
two syncable analog lfos for dynamic accents
resistor-dac output for pitch or decay modulation
internal clock with 16th, 8th, and quarter note outputs, syncable to external gear
module width: 34hp
27ma @+12v; 20ma @-12v
