Hi, friends, hello everyone~ Recently, many development boards have been launched~~ The managers are busy making pages and preparing materials~~~ La la la~~ Everyone, when you visit the forum every da...
When debugging the pm2.5 module under esp8266, the UART0 interface was occupied by repl, and the system crashed after wiring. After checking the relevant information, I had an idea: UART0 is only occu...
[i=s] This post was last edited by ljj3166 on 2015-10-12 14:45 [/i] Continue Renesas' activities. I built a multi-purpose board in the early stage, and the basic functions are almost realized. After t...
In the attachment, Q1 uses a P-channel MOS tube, mainly to prevent the battery from being reversed. The parasitic diode of the MOS tube is used to make VGS greater than the gate-source threshold and t...
8 independent interrupt buttons. After the interrupt, first perform delay anti-shake, and then check which button is pressed. After the button check, determine whether the button is released. If relea...
When there are multiple slaves connected to the 485 communication bus, several slaves start running first and run normally, and can send and receive data; then when more slaves are powered on, they se...