microcontroller

The nw2s::b is an open, Arduino-based modular synthesis development platform for the Eurorack format with 55 independent interface points including CV and digital input and output jacks, knobs, buttons, and even audio. Yes, this module will allow you to emulate almost any existing sequencer, LFO, envelope generator, arpeggiator, quantizer, control voltage processor, hybrid oscillator, or other insane source of uncertainty.

http://nw2s.net/about/

• ? mA +12V
• ? mA -12V
• ? mA 5V

No info about availability.