I’m on a kick lately of figuring out how to make important modular synth components, like sequencers and binary counters, out of logic gates. I have a sort-of working design for a set/reset flip-flop. set_reset_flipflop.vcv (1.9 KB) [An almost-working SR flip-flop made of VCV Logic gates.] …

Ha, sounds fun! If you pick two columns* and output them as a .csv file (as spreadsheets usually do), then you can read them with Memory or MemoryCV and play them back out within Rack. :slight_smile: Mahlen *Someday more than two…

That is cool… I will definitely file this away! Can it go the other direction? Go from samples to .csv file?

Yes and yes . Since you’re having fun doing a known thing with low-level components, I think making music by typing sample values into a .csv file is the next level.

[image] StochasticTelegraph: making music by typing sample values into a .csv file is the next level HAHAHA!!! Ultra-low-level music composition at its finest.

Update on my design: I have decided that the input pulses need to be held high much longer than a single sample, but a standard 1ms trigger pulse is about 0.001*48000 = 48 samples long. That’s plenty of time for transitory logic to settle down. I used Count Modula’s “gate to trigger” module because …

Loving this series of posts lately. I have been eschewing sequencers for my drums lately and just using logic. Logic doesn’t get out of sync with the main clock like most sequencers do. Sure you may lose a sample or 3 but you can jiggle that with delay or sample hold. And of course, xor can be surpr…

I don’t want to stray too far from the original topic, but now I have a mostly-working 8-step sequencer based mostly on VCV Logic gates. I got the toggle flip flop working. Then I chained 3 together to make a binary counter. I feed the 3 bits through 8 parallel logic groups that detect each of the 8…

Years ago a girl constructed a working CPU in VCV Rack. I don’t remember her name but I will dig through my old files and try to find it. The patch was beyond impressive

Found it: [image] Making a CPU using VCV Rack Music & Patches Saw an interesting thread where someone created a primitive CPU patch (no music). I can mostly follow the digital adder piece since she described it in detail, and am sure that some of you will much…

I love that! The patch is surprisingly small for a fully functioning CPU. I love using 5-channel polyphony as a 5-bit bus for the tiny instruction words!

Using a spreadsheet to simulate VCV Rack digital logic

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DaveVenom (Dave Benham) June 18, 2026, 3:08am 10

Found it: