The specific function and usage of a dip switch. A dip switch (also known as a DIP switch, toggle switch, overclocking switch, address switch, toggle switch, digital switch, or finger switch) is an address switch used for operation and control, using the binary encoding principle of 0/1. Each key corresponds to two pins on the top and bottom of the back. When turned to the ON side, the two pins below are connected; Otherwise, it will be disconnected. These four keys are independent and not related to each other. This type of component is commonly used for binary encoding.

Can be set to 1 for connection; If the disconnection is 0, there are:

0000 0001 0010... 1110 1111

There are a total of 16 types of encoding. The specific purpose depends on the definition of the motherboard. Generally, the usage and meaning will be marked on the circuit board.

Common usage: Set baud rate, communication protocol, communication address, etc.