Korg Mini Pops DIY DRUM MACHINE (& DSP-D8)

Welcome to the forum :slight_smile:

yes the zip. link in the topic above is dead !

Welcome @Axo :slight_smile:

not yet for the Minipop but possible with the DSP D8

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thanks, sorry for the stupid question but is it the dsp-D8 ?

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I found One code which has pitch control, works great. Just had to swap pot pins from old build. Also with this code pin13 is used for both clock in&out. (minipops the wee 03 code, not mine)

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It’s another “drum machine” with arduino

maybe you can share the link plz :slight_smile:

I found it, this one ?

Yea this is the one. Havent tried sync out yet but otherwise it seems to work with my build that used O2 code tho i had to change potentiometer pins

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hey @Dud I built the DSP-D8 with the trigger inputs and can’t get it to work. Idk what the makerfile does but I placed everything in a folder and it compiled and uploaded. When I give it a trigger nothing happens hat the output. If I give it a gate it just makes a pop sound but nothing else. I tried every pot and every trigger input and it was always the same. I used an arduino nano which works well (even swapped it out at some point) and I got the pin config like in the schematic @Aswayze has it drawn. please help I really don’t want to dump that build.

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I posted this info but it’s not mine and I didn’t build it.
and I suck at coding :slight_smile:
sorry but for help it won’t be me

apart from the triggers, the rest works?

OH :grimacing:
if I can’t trigger the sounds I get no output so idk really. How can I test it? I’ve done several arduino builds and I’m sure the wiring is not the problem. I have added some clamping diodes but for sure that can’t be the problem (used them in many other arduino builds) Also after the first attempt I added the pulldown resistors and changed the inputs from input_pullup to input. didn’t change anything.

okay I helped myself and it worked out fine :slight_smile:
I simply did what @eric suggested. Added the 100K pulldown resistors. Also to protect the arduino against hot signals from my modular I added clamping diodes and a 1k series resistor at every trigger input. I’ll post the whole thing with a schematic soon (the next few days) on my website.

One thing I used the original Code from janostmans (waybackmachine) page:

https://web.archive.org/web/20180318083717/https://janostman.wordpress.com/the-dsp-d8-drum-chip-source-code/

modified Code - pw: lmnc

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I am only bragging here with my original mini pops in mint condition and other cool stuff :grinning:

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dam that thing is clean , especially with how old it is !

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Hey you guys, I’ve been lurking for a while. I’ve modified the Mini Pops to add an OLED display screen showing the pattern you’ve selected (which I find immensely helpful!) and significantly modded the drum patterns to make a bunch of 80s electro pop dance beats. I call it the Perculator. Mine’s based on Mark Dammers Wee O3 upgraded O2 Mini Pops design. Wanted to share in case this helps someone else. I’ve just made a video demo for it. Video goes public tomorrow, but this link should work today. I’ve got the info for it up on github with links in the video description.

I really appreciate all the sharing and support on here. Hope this might help someone else.

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Superb! And just when I thought I’d never make another. Cheers

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Haha! Happy to add to your project list. It’ll be worth it - the screen makes a big difference in usability if you jam with it (or just want to know which flippin pattern you’re on).

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Hum, it looks like I cleaned my google drive a bit too hard…
Here is my partial mirror of Jan Ostman website again :
https://drive.google.com/drive/folders/12Yzy0FbwVLrcZYWVgje0Y-7lU0hDiptG?usp=sharing

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This page has a simplified and clarified version of the source converted to the “Make Your Uno” platform.
It’s missing some features like the mutes and midi though.

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Any chance you could make this repository available again?[quote=“eric, post:51, topic:2316, full:true”]
I found some more of my mirror of Jan Ostman’s blog and hacksters posts…
https://drive.google.com/file/d/14jT04LqOR8lIHQ-UmVxMCjaT-c5uOuwW/view?usp=sharing
[/quote]