THT-Frames

THT-Frames is a through hole version of Mutable Instruments Frames. For the MCU a 128KB STM32F103C8T6/STM32F103CBT6 "bluepill type" module is used. Warning! Most of the conventional boards floating around on ebay, aliexpress, etc. are 64KB. Those won't work with the provided firmware. I'd recommend picking one up from robotdyn (website/aliexpress), these are the ones I use and they work without any problems. You can also pickup a matching APM32 board if you want for a little cheaper. I've tested them and they also seem to work fine.

It also uses a different dac than the original, because it isn't available as a DIP package.

Panels

Be sure to check out my printable-instruments repository, which contains pcb panels for several Mutable Instuments modules including Frames. That being said, any third-party panels should also fit with these boards.

How to use

Quickstart

To get started quickly, you can just download the gerbers for both pcbs and the compiled software .hex file from the Releases section.

Hardware

If you want to export the gerbers yourself or modify them, just clone the repository and open the hardware files with KiCad.

Software

This project requires slightly modified software, because it uses two 2-channel DACs instead of the single 4-channel DAC the original uses.

If you want to build the software yourself, clone the mutable-dev-environment repository and follow the provided instructions to set it up. After that, copy the patch from this repository (software/tht-frames.patch) to mutable-dev-environment/eurorack-modules and also cd to that directory. Finally apply the patch via git apply tht-frames.patch and build the firmware as usual.

Credits

• Mutable Instruments provided the original hardware design files and software which this projects builds upon.
• SoundForce - Braids Through-hole gave me the idea for this project.

License

• Hardware: cc-by-sa-3.0
• Software: MIT