There are many types of DIP switches, and its operating principle is basically the same. For example, the operating principle is six DIP switches essentially binary combination. Each bit consists of "0" and "1". A total of 64 species, including 2 6 power combination. The MCU responds by identifying the combination.

Each DIP switch has a card in the multi-bit BCD DIP passes inside. BCD codes are generated by the printed circuit pattern before the corresponding BCD code is output for the six pins in each of the DIP switches.

In detail, I want to dominate it, for example, with the control of the speed of the engine. There is a YE-example is easy to understand how the puzzle is 8, then the monopoly to identify the 8, so when using the engine to use the microcontroller to adjust the rotation time or speed.

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