Does anyone have a program that can realize serial communication between CC2530 and SIM900S and set it as a gateway to send and receive text messages? Please help me...
[i=s]This post was last edited by Demonstration Law on 2021-4-12 16:14[/i]It's like this. I used a multimeter to test the 1588bs dot matrix I soldered on the board and found that it was functioning pr...
I used LM2576 to make a 5V DC power supply. Its output current is 3A. I don't know if the current input to the microcontroller is too high. Is there any way to reduce the current?...
[align=left][font=宋体]I saw this post: [/font][url=https://bbs.eeworld.com.cn/thread-420509-1-1.html]https://bbs.eeworld.com.cn/thread-420509-1-1.html[/url][/align][align=left][font=宋体]So I just want t...
IoT, 5G, and NB-IoT are the most popular communication terms nowadays. With the maturity of 5G, "intelligent interconnection of all things" is becoming a reality, and the Internet of Things has been p...
I am currently working on a project using a upsd3254A-40U6 microcontroller. This chip has five built-in PWMs, of which PWM4 can output square waves with controllable frequency and duty cycle. I am con...