This is the software for my serial-cv board, a small device that generates control voltages for analog synthesizers. I originally designed it to fit inside a Korg Monotron, but it may be useful for other synthesizers as well. For more information, visit the project page.

The 'firmware' folder contains the firmware for the device itself. To compile, you'll need the avr-gcc toolchain. Adjust the Makefile for your programmer and run make.

The 'programs' folder contains a simple library for controlling the serial-cv board from a computer program (serial-cv.c), a utility to set the output voltage from a command line (setvoltage.c) and a program to control a synthesizer's pitch CV from MIDI events (monotron.c). The serial-cv library and the setvoltage utility should compile on any POSIX-compliant system (such as GNU/Linux). The monotron.c program requires the ALSA Sequencer and libasound, so it will only work on Linux. Run make to build.

This software was written by Nick Ames (nick@fetchmodus.org) in 2013. It is placed in the public domain, in the hope that it will be useful to someone.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.