As the title says, I want to learn about mobile phone development, and I want experts to share information about AT commands. It would be best if there are examples of use.
Today I did an experiment with AVR timer 0 and wrote a program to implement 1s timing. I downloaded it and measured the time and it was quite accurate (ISP download software sets the single chip used
When looking at the circuits of op amps, I often see that op amps use bipolar power supplies such as ±12V and ±15V. I would like to ask how to obtain such a bipolar power supply and what chips are rec
I encountered the following problems when using Quartus II. Please give me some advice if you have experience: 1. Can Quartus II6.0 not be used under Windows 7? The project I made with Quartus II6.0 u
I have been working on ModBus protocol communication these days, and the first problem I need to solve is the implementation of serial communication. I started to use 89s52 to do serial communication.