Make Your Own Hardware Analog Emulation Synth From $23

Not everyone can afford a much desired Moog analog synthesizer. For those that would like that analog experience and are prepared to go the DIY route, the parts can often set back a maker many hundreds of dollars or pounds. Which is why this new project from pappas.chris caught our budget conscious eye. Imagine being able to create a 6-voice virtual analog hardware synthesizer starting at just $23 for the microcontroller board of the Nucleo Synth.

The STM32F7 microcontroller is at the center of this 6-voice virtual analog synthesizer. All you need on the hardware side if the STM32F7 Nucleo-144 board, one stereo audio jack, and a USB-OTG to USB-A adapter.

This synthesizer should be fairly straightforward to program too. 

STM32F7 Nucleo-144 board

Here's a demo of the synth in action from the creator of Nucleo:

Nucleo Synthesizer Features

• 6-voices of polyphony.
• Dual oscillator per voice.
• VCA (with ADSR) per voice.
• VCF (4-pole lowpass with ADSR) per voice.
• Master tuning.
• Waveform select saw/saw, saw/square, or square/square.
• Oscillator mix.
• De-tune.
• Separate LFO for Modulation and PWM.
• Scale for upper oscillators.
• PW/PWM on the square wave.
• Separate adjustable keyboard follow for ENV and VCF.
• Keyboard velocity routable to VCA and VCF.
• VCF envelope level.
• Editable parameters.
• Stereo simulation effect.
• Patch Load.
• Patch Save (Host only) 

Features Coming Soon...

• Oscillator hard-sync.
• Separate LFO for VCF/VCA.
• Triangle waveform
• Noise waveform