Simple Voltage Sequencer for Moog Mother-32

A simple voltage sequence for Moog Mother-32 and other devices. The cost is very low, and the concept is somewhat expandable. No additional power supply is used. Instead, the VC Mix Output is used to power the sequencing circuit, consisting of a 40106 oscillator, a 4040 counter and a 4051 multiplexer.

Let's Make: A MIDI DAC

MIDI to 1V Per 8ve CV and Gate Max for Live Device

A basic Max for Live device that can be combined with a Teensy and one or more MCP4922 DAC chips. MIDI notes are converted to 12-bit data that represents a voltage range of 0 - 5V, at a rate of 1V per octave. Pitchbend is mapped, too, with a user defined range. Note-ons and offs trigger gate events. The note length can be left 'as-is' or set as a predefined length.

Very rough demo shown below, using a Teensy 2.0, one MCP4922, gate output and pitch CV output controlling a Moog Mother-32.

Download this device here: http://milkcrate.com.au/_other/downloads/M4L/little-scale.midi.notes.to.pitch.cv.gate.amxd

Moog Mother-32 CV Input Controlled via Teensy 3.5 Onboard DAC

The Teensy 3.5 DAC can be used to control the CV inputs on the Moog Mother-32. Although the voltage rang is not as large as to cover the entire range, it is still definitely workable.

Connection is simple - Teensy 3.5 DAC 0 or DAC 1 out to tip, ground to sleeve.

Even MIDI control numbers 0 - 30 control DAC 0. Odd MIDI controller numbers 1 - 31 control DAC 1. High resolution is supported.

The DAC is 12-bit, so the high resolution MIDI range of 0 - 16383 is scaled to 0 - 4095.

Download the code here: http://milkcrate.com.au/_other/downloads/arduino/High_Res_MIDI_AnalogWrite.ino