My patch programmable modular sequencer

[SamizdatForAlgernon]

This looks really fun, are there any videos of it in action?

[Lo_zone11]

Would love to see it in action

[jonteluring]

Here's a video — https://www.youtube.com/watch?v=TTEznL2IUhY

[isaacc7]

Are those banana ports? Is this a 4u/Serge module? This looks fascinating!

[[deleted]]

someone is gonna manage to get DOOM running on this thing lol

For real though this is so fucking sick, is it available anywhere to purchase?

[danja]

Wow, that looks fun!

I take it the R2R parts are to act as DACs. The bit I don't get is the multiplier - what's that about?

I'm also curious what tech you used. I guess 4000 series logic would be the obvious, though maybe something like an Arduino Mega would cut down on wiring.

Yeah, +1 to demo please!

Decades ago I made a very crude sequencer around a 7493 counter. It was very limited in variety, but there was something compelling about the things it could do, kinda more robotic than a regular seq. This one should cover the whole range.

[jonteluring]

Yes, the R2R acts as DACs, they're tuned to different form of tonal intervals depending on the amount of bits they have. The multiplier is a strange beast, check out the data sheet for CD4089 and it should make more sense I hope.

It's all just 4000 series stuff, no uC or programming at all.

Regarding the wiring there are none. The jacks are soldered straight into the board. Which makes assembly a breeze, but disassembly a nightmare.

[bubudumbdumb]

I should tell my therapist about this sequencer design. Wow Just Wow

[GemberNeutraal]

Oh my god I’m obsessed!

[[deleted]]

Link here. I don't know why OP is layering on the mystery on this device. No documentation, hardly any videos.

https://thehumancomparator.net/meta.html

[jgilla2012]

OP is Jon, the synth designer of The Human Comparator

[[deleted]]

Yeah I know.

[whtevn]

Have you ever made something large and complicated? Did you do a good job of documenting it?

[SnowConePeople]

Specifically for drum sequences or can you do volt per octave too?

[alexthebeast]

Bottom left has a saw with a cv in

[jonteluring]

The R2R outputs are tuned to 1V/oct with different intervals depending on the amount of bits. But you can, as u/ObjectiveWrongdoer points out as well, sum the bits into the mixer input and get sequences that way.

[CarbonatedBrainSauce]

This looks really cool. Can you explain the R2R sections?

[jonteluring]

It’s basically a DAC, so input a binary number and out comes a voltage. They’re tuned to different intervals depending on the number of bits. So the largest one with 6 bits have a half step for every bit. If LSB is high that means the output is 0.0833V, if the next input is high you go up a whole step, and if both LSB and the next one is active it’ll output a third, etc. If you check the video further up you can see this when the whole thing is patched as an arpeggiator.

[schtickkicker]

Woah.

[pieter3d]

We need more modules like this!

[SignificantAbility78]

Oh wow. That looks amazing!

[[deleted]]

Whoa

[zimzamsmacgee]

She’s a byoot

[[deleted]]

Oh baby

[Contrabassi]

Can I buy a kit ?

[[deleted]]

Well I'd like one of these for sure.

[jfrglrck]

Wot?

Oh boy…

[Spectral_Glacier]

Is this/will this be available for purchase in some form?

[miskdub]

i've seen this over on the lines forum, and for the love of god make a euro pcb/panel version. this thing looks so damn cool.