I just found a job and received a task. My boss gave me a SIM300 experimental board and asked me to look at the AT commands and use a C program to dial the experimental board. In fact, I still don't q...
Title: Principle and Application of MOTOROLA J, K Series Cheap Single-Chip Microcomputer Author: Yu Yongquan/Lin Wei Publisher: Beijing University of Aeronautics and Astronautics Press Pages: 217 Publ...
[i=s] This post was last edited by wangfuchong on 2014-5-8 21:42 [/i] I haven't read it in its entirety, so I'm reposting it here for your reference:The speed of animal evolution has not kept up with ...
:congratulate: I know nothing about LNA, and now I need to make a 400MHZ~800MHZ low noise amplifier. I want to ask if anyone has a GPS active module to give me some circuit reference. :faint:...