The host computer was designed and developed by the company before, without using Windows or other operating systems. It is a self-designed system. Now we need to use STM32F103RCT6 to communicate with
I need to use a barcode module recently. The output is RS232. I use a 232 to USB cable to connect it to the computer and it can read the data. But when I add 232 to TTL and then TTL to USB, I can't re
Shanghai IC enterprise recruitment of various engineers---Dishui Lakemp.weixin.qq.comShanghai Zhangjiang/Dishuihu companies need the following engineers (AE and IC circuit design engineers can be in Z
I bought a c8051f020DK development board. The LCD on the board does not come with a font library (control chip KS0108). Then I bought a LCD with a font library (control chip st7920) and connected it t