Overview
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Learn to design and build a minimalist analog drum sequencer in this 32-minute DIY electronics tutorial that challenges conventional approaches to drum machine design. Explore how to create a functional drum sequencer without relying on microcontrollers, multiple buttons, or LEDs by using innovative analog circuit techniques. Discover the fundamentals of drum beats and rhythm programming before diving into the technical implementation using shift registers as trigger sequencers. Master the integration of metronome LEDs for visual timing feedback and implement smart accent features using triangle LFOs for dynamic rhythm variations. Understand LFO synchronization techniques for creating synced accents that enhance musical expression. Build dual-channel functionality with clear mode capabilities, and learn to implement variable sequence length controls with half-time mode options. Gain hands-on experience with digital-to-analog converter integration and complete module assembly techniques. Follow along with the comprehensive build guide to construct your own Eurorack-compatible drum sequencer module, with detailed chapters covering each component from basic rhythm theory through final assembly and demonstration.
Syllabus
00:00 Intro & What is a drum beat?
02:10 Shift Register as a trigger sequencer
08:56 Metronome LED
10:32 Smart Accents Triangle LFO
15:44 Synced Accents LFO sync
19:29 Two channels & clear mode
22:22 Sequence length & half time mode
25:26 Digital to analog converter
28:19 Module assembly & demo
Taught by
Moritz Klein