BUY DK-423 https://www.utsource.net/itm/p/10057776.html

DK-423 is a SIP16 (Single In-line Package) module manufactured by MELDAS. It is a 16-pin module that is used for controlling the speed of a motor. It features a built-in microcomputer, a power supply circuit, and a motor drive circuit. It is designed for use in industrial applications such as machine tools, robots, and other automated equipment. It is also suitable for use in home appliances, such as washing machines and dishwashers. The DK-423 is capable of controlling the speed of a motor by providing a pulse signal to the motor. It also features a built-in timer for controlling the speed of the motor. The DK-423 is easy to install and use, and is a reliable and cost-effective solution for motor speed control. (For reference only)