The LM324 family of devices is an inexpensive quad op amp with a true differential input. They have some significant advantages over standard op amps for single-supply applications. The four amplifiers can operate at power supplies as low as 3.0 volts or as high as 32 volts, with quiescen…
As a partner of our registry hobbyist, Win+R is definitely a bad combination. Xiao Bian also wanted to play a bit deeper, by modifying the registry and applications, so that everyone can run directly in the Win+R operating window to run a variety of programs, but to…
RFID radio frequency identification is a non-contact automatic identification technology, and its basic principle is electromagnetic theory. It automatically recognizes the target object and acquires relevant data through the RF signal, and the identification work can …