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...
The idea of magnetic levitation has been around for a long time, which is to use magnetic force to overcome gravity and keep objects suspended in the air. However, it is not easy to actually do it, ma...
After the development of analog, digital and network, security video surveillance products are entering the high-definition stage with irreversible momentum. In the past two years, "2010 will be the f...
[p=24, null, left][color=#333333][font=宋体, Arial, Helvetica, sans-serif][size=12px]The fourth stop of Guangzhou Tianqian Technology TI Seminar: Chengdu, Sichuan,[/size][/font][/color]In the hot summer...