BMC001 Simple Quantizer

picture of the module

This circuit takes a continuously variable dc voltage and outputs only voltages related to each other musically, using the 1v/octave standard. It utilizes a preprogrammed PIC which is included with purchase of a PCB. It is has a very low parts count, requires no calibration, and is small enough to be used either as a seperate synth module or as a daughter board to be attached to the input of an oscillator or output of a sequencer/s&h/other cv generator.

The PCB mounts to the panel via potentiometer. It is compatable with 12V or 15V systems. It was initially powered on a single 9V battery while testing, so it is also compatible with unipolar systems.

For Troubleshooting common problems see this page.
If you have a rev 2.0 board, here is the old documentation on that.
If you have a rev 4.0 board, here is the old documentation on that.

Boards and PICs available now. Price for 1 PCB/PIC is $14.
Unfinished eurorack panels are available for this project, they are 6HP and cost $8 each. The panel pictured at the left is for two sets of PCBs, if you prefer a panel for a single PCB, let me know. 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.