The trade war has intensified recently, and coupled with the sudden outbreak of the epidemic in 2020, the supply of 32 -bit microcontrollers used by our company has become unstable. A few days ago, th
On the Lantern Festival on February 28, 2010, a wave of nostalgia suddenly blew up the Joke board, and many wsn collectively missed their youthful days. . . For a while, some people beat their chests
When using DSP to control PLC, the DSP output high level is 3.3V, while the switch signal voltage value of the PLC is 24V. How is the level conversion process completed? Can optocouplers and relays me
This is a program to change the brightness of a light. It worked when I tested it before, but now the light doesn't respond when I press a button. Could any expert help me find out what's wrong with t