I want to design and develop an electronic cash register (POS machine) that is not connected to a computer. It is a cash register machine commonly used in dry cleaning shops, tea restaurants, and ente
Why in the LCD1602, the number read back is not displayed in increments? The clock chip ds12c8887 uses a 51 single-chip microcomputer! Please help me solve it.
The sensor of the test system is subject to electromagnetic interference from the object being tested - an electric motor with a rotation speed between 1 and 30 Hz. The output of the sensor is an alte