Over on my other blog, I spentt a fair bit of time looking at the TD4 4-bit CPU. One of the things I wanted to do with my NAND Oscillators and Logic Sequencer PCB was hook up the address/select pins to something else. And with three select pins, allowing the choice between 8 notes, what better … Continue reading TD4 4-bit Sound
Tag: sequencer
NAND Oscillators and Logic Sequencers
I've had a bit of a play with logic based synthesizes in the past, but not in anger. However I've recently picked up "Make: Electronic Music From Scratch" by Kirk Pearson from Dogbotic. It is excellent and a good chunk of that is based on circuits using the CD4093 Quad NAND chip, so I've started … Continue reading NAND Oscillators and Logic Sequencers
Multi-Mode MIDI Step Sequencer – CDR Format – Part 3
This post revisits the "CDR format" (CD Rack Format) panel version of my Multi-Mode MIDI Step Sequencer. Part 1 detailed the build and testing of the panel. Part 2 updated and enhanced the Multi-Mode MIDI Step Sequencer code to run on the panel. Part 3 (this post) details the design of a panel using a … Continue reading Multi-Mode MIDI Step Sequencer – CDR Format – Part 3
Arduino Clock Generator Shield PCB
This is an Arduino Uno shield design that can be used to provide up to six clock generator outputs for a sequencer. I've built it to use with my Arduino Euclidean Gate Sequencer. Arduino Clock Generator Shield PCB Build Guide Warning! I strongly recommend using old or second hand equipment for your experiments. I am not responsible … Continue reading Arduino Clock Generator Shield PCB
Arduino Drum Trigger to MIDI
After playing with my Arduino Euclidean Gate Sequencer I started to think about how to turn that into MIDI. One option, naturally, is to add MIDI to the sequencer itself, but I thought the more versatile approach would be to build a second Arduino that took trigger pulses and turned them into MIDI drum messages. This … Continue reading Arduino Drum Trigger to MIDI
“Baby8” Discrete Logic MIDI (ish)
I've wanted to create a non-microcontroller, discrete logic MIDI circuit for some time. I thought it would be interesting to have a few chips that could generate a specific sequence of bytes corresponding to a MIDI message. Note: I'm still talking individual chips here, not just gates and definitely not individual transistors, so perhaps "discrete … Continue reading “Baby8” Discrete Logic MIDI (ish)
“Baby8” CV Step Sequencer – Part 4 – In Use
These are the usage notes for my "Baby 8" style sequencer based on the ideas presented in “Baby8” CV Step Sequencer – Part 1 and using the PCB I've described in part 2 and part 3. Part 1 - This post with the introductory design information. Part 2 - The design for a PCB based on … Continue reading “Baby8” CV Step Sequencer – Part 4 – In Use
“Baby8” CV Step Sequencer – Part 3 – PCB Build Guide
Here are the build notes for my “Baby8” CV Step Sequencer PCB Design. Part 1 - This post with the introductory design information. Part 2 - The design for a PCB based on the principles in the first post. Part 3 - The build and test notes for the PCB. Part 4 - Usage notes for … Continue reading “Baby8” CV Step Sequencer – Part 3 – PCB Build Guide
“Baby8” CV Step Sequencer – Part 2 – PCB Design
This is a PCB design for a full "Baby 8" style sequencer based on the ideas presented in “Baby8” CV Step Sequencer – Part 1. Part 1 - This post with the introductory design information. Part 2 - The design for a PCB based on the principles in the first post. Part 3 - The build … Continue reading “Baby8” CV Step Sequencer – Part 2 – PCB Design
“Baby8” CV Step Sequencer – Part 1
A common early project for anyone starting to play around with analog synthesis is a "Baby8" step sequencer. There are many designs out there on the Internet and many ready-designed kits that can be bought and made. I can recommend the Rakit Baby8, which has some neat features. I've used it with my Educational Synth … Continue reading “Baby8” CV Step Sequencer – Part 1