![]() Rotary DIP switches contain multiple electrical contacts, one of which is selected by rotating the switch to align it with a number printed on the package. This makes them especially suitable for encoding devices such as a remote controller. For example, 8 pole tri-state DIP switches offer 6,561 (3 8) combinations/codes compared to 8 pole binary switches' 256 (2 8) combinations/codes. Eight switches offer 256 (2 8) combinations, which is equivalent to one byte.Ī tri-state type DIP switch can be in one of three positions (+, 0, -) which allows more codes than a binary DIP switch. For example, seven switches offer 128 (2 7) combinations, allowing them to select a standard ASCII character. The values of all switches in the package can also be interpreted as one number. This allows each switch to select a one-bit binary value. The slide, rocker, and piano types, which are very common, are arrays of simple single pole, single throw (SPST) contacts, each of which can be either on or off. ![]()
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May 2023
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