My DIY audio sampler prototype based on stm32f401, MAX7219, AT45DB161E, SD card. Made by Ilya Pikin HD

!!! Watch my new version of Beatsqueezer sampler: https://www.youtube.com/watch?v=m1lv7fBnhXE My first audio sampler prototype based on stm32f401 microcontroller, MAX7219 7-segment LED indicator driver, x3 AT45DB161E SPI flash memory chip, SD card for downloading samples data, CS4334 audio DAC, TDA2822 amplifier. Made by Ilya Pikin. Prototype has several issues: 1 - Long time of samples uploading to memory. 2 - Memory size only 2 X 3 = 6 MBytes 3 - Problems with grounding and with noises from data lines.