In actual work, it is often necessary to use multiple serial ports. The template routine of this chip only uses one serial port for debugging. You need to prepare a TTL to RS232 connector because the
I want to make a system that automatically shuts down after being idle for 10 minutes. But how to get the idle time of WINCE is a problem? Does anyone have a solution?
I remember that when I graduated in 2006, several brothers from the same lab went to Nortel. I sent them off with envy, because this was a job that could support them in their old age. But in just thr
How to use ASTPortTool.exe to learn to send AT commands? Is it connected to the SIM300 board or the ARM chip? Has anyone used AT commands to send English messages?