Yesterday I used two transistors to drive a 24V relay through a microcontroller, but now I want to use ULN2003 to drive 7 24V relays through a microcontroller at the same time. I don't know if this is...
How can I write information to a blank chip card in WinCE (ARM9) environment? I use the function provided by winscard.dll to complete the read part, but I don't know how to write data to the card. Has...
[i=s] This post was last edited by Beifang on 2018-3-30 14:10 [/i] Audio Tuner 1 - Unboxing 1. Overview [font=宋体][size=11.5pt] I plan to use this product [/size][/font][font=Tahoma, sans-serif][size=1...
I just started embedded programming and recently ported a TCP/IP protocol stack to the ucos operating system. I ported LwIP, but encountered many problems that could not be solved in the process. I us...
RT-Thread is an open source real-time operating system mainly developed by the Chinese open source community. It can be used as a real-time operating system kernel and almost all mainstream microcontr...