With USB-MIDI and two 12-bit DACs on board ... using a Teensy 2 with an offboard DAC to generate the output voltages. Here at Hackaday, we’ve always been big fans of adding computer control ...

[TheSpodShed] decided to whip up a USB MIDI interface for the chip, with the help of the Arduino Pro Micro. The Arduino Pro Micro is a Sparkfun creation, using the ATmega32U4 microcontroller.