Modify Volca Bass into a Analog Mini-Modular! DIY hack/mod, compatible with Volca Modular!

I installed a 20 pin patch-bay into the Volca Bass to integrate it with my Volca Modular. This isn't quite a step-by-step guide but shows some of the modifications used to achieve it, as well as a few patching ideas.
It's definitely a bit of a circuit bending hack as I'm not deeply skilled with electronic circuit design. Most patch points are either direct to the labelled pads or connected to the pots so simulate turning them (at audio rates! 😁😁).
16 patch points - 11 out and 5 outputs:

- Individual outputs for each Saw and Square oscillator
- Filter cutoff input
- Filter EG intensity input (for controlling accent)
- Filter envelope+LFO CV output
- LFO speed control input
- Individual pitch control inputs for OSC1, 2 & 3
- Outputs from various points on the signal path - VCO, VCF & VCA outputs
- 4 points left for future expansion - i'm thinking attack & decay EG input and maybe an input to send an envelope to the volume to simulate side-chain compression.

Check out my other video doing similar modifications to a Volca Beats to add 10 inputs and 10 outputs for envelope generation & CV control: https://www.youtube.com/watch?v=jpwa8cFfh9M

Applications:
- Filter cutoff FM
- Oscillator pitch FM
- external control of filter cutoff and EG accents
- crazy noises
- using Volca Bass audio and some control voltages to input into the Volca Modular.
Next step is to do the same to the Volca Beats to output triggers, envelopes, noise generators and individual outputs on a 20 pin header for Micro-modular integration....
0:00 Intro
0:16 patch points on the PCB
0:39 mechanical modifications to add the header
1:10 Patch Ideas - Filter Cutoff & EG Intensity
2:00 Pitch modulation
3:00 Randomised accents
3:18 LFO speed modulation
3:42 Filter FM using VCO2
5:18 chiptune pitch modulation
6:45 Audio output into the Volca Modular
7:49 Filter CV as a control source

Видео Modify Volca Bass into a Analog Mini-Modular! DIY hack/mod, compatible with Volca Modular! канала Wirehead Instruments