10-bit PWM is a custom-build open source ESP32-based PWM programmable synthesizer with analog potentiometer controls and software-defined sound engines.

Technical specifications

Platform: ESP32

Programming Environment: MicroPython

Audio Output: 3.5 mm stereo jack

Channel Configuration: Dual mono (L = R)

Controls: Analog potentiometers, Push buttons

External DAC: not required

Synthesis: PWM pulse wave / square wave synthesis

PWM resolution: 10-bit (0 - 1023 duty control)

Control resolution: 8-bit parameter mapping (0 - 255)

Sound engines: software-defined

Dimensions: 16 x 10 cm​

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Acknowledgements

This project was developed at BEK's Electronic Lab and was co-financed by the European Union.

​​​Sound samples (unprocessed):

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