[i=s]This post was last edited by x1816 on 2016-11-12 10:38[/i] [font=微软雅黑][size=3]Raspberry Pi 3 has a set of GPIO interfaces, including SPI, I2C and other commonly used bus interfaces, and also inte
I got this by chance when I was investigating the company's customers. You can check it out. One is a 21-page microcontroller C language learning example (http://www.huazhoucn.com/smallfan.aspx?smallc
This circuit has PFC correction. It uses 220V to step down to 18V through a transformer, and then rectifies it through boost and ucc28019. When there is no load, it displays 36V. When the sliding resi
持续可靠地监测血压和心功能对心血管疾病的诊断和预防具有非常重要的意义。然而,现有的心血管监测仪器体积庞大且监测成本高昂,限制了其在早期诊断中的广泛应用。 清华大学化学系的科研团队在Science Advances期刊上发表了以“Monitoring blood pressure and cardiac function without positioning via a d...