A microcontroller based VCO. Output waveforms have variable bitrate from 2 to 8 bits. Waveforms are Saw, Square, Triangle and Pitched Noise. A single trimpot for calibration
Compatible with 12V or 15V systems, PC mounted pots, but jacks/toggles are offboard.
Audio Demo: I adjust frequecny and depth knobs ont he module and switch between outputs. The depth toggle is low at the start and high at teh end
Audio Demo: I use an denvelope generator to modulate the bit depth with a saw wave, first with depth toggle down, then up.
For complete descriptions of the way the module is used, mp3 samples and how to build it, including schematics and parts list; download this PDF file.
Boards and chips are available now. Price for 1 PCB/PIC is $18.
Unfinished eurorack
panels are available for this project, they are 10HP and cost $8 each.
There is
more information here about panels. If you're interested in drilling your own panel for
this project, feel free to use my
drill guide. That image should be printed at 300dpi for proper
scaling.
