Wee Noise Maker
Pocket open source synthesizer
Wee Noise Maker
is a pocket size music synthesizer based on the STM32F427 ARM
Cortex-M4F micro-controller. It features an audio DAC with headphone amplifier,
audio input, 96x16 OLED screen, 2 rotary encoders, 24 tactile switches and
LEDs, micro SD card slot, LiPo battery charger and an I2C extension port.
Have a look at blog or follow the project on hackaday.io.