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 alan000345 on 2019-10-21 07:30[/i]Elevators are responsible for transporting millions of people every day, so ensuring their safe operation is of vital importance. Ha
The question is as shown in the figure. The load size range is constant and the input voltage is also known. When determining the range of the current limiting resistor, why are IZ, UImin and ILmax us