[i=s]This post was last edited by Hot Ximixiu on 2021-7-15 08:26[/i]Pingtouge RISC-V low power board-RVB2601 and ART-PI jointly realize voice recognition
RVB2601 collects audio information and sends t
From: https://hackaday.io/project/174149-moon-phase-displayA battery-powered e-ink display that shows the current phase of the moon. Materials used:ItsyBitsy M4 Express
Adafruit eInk Breakout Friend
W
[align=left][font=微软雅黑]For a long time, when selecting lightning protection devices for DC power ports, people would choose varistor[/font]MOV. However, since varistor MOV will cause fire when it fail