4 Pin Push Button Switch Pin Description

A 4 pin push button switch is a push button switch with 4 pins, that is, two pairs of pins, one pair of pins is used for circuit switches, and the other pair of pins is used for lamp beads.

The + and – pins are lamp bead pins, and there is no distinction between positive and negative poles in conventional lamp bead configurations; the lamp bead and the switch are relatively independent, and the lamp bead status can be controlled through the switch or peripheral circuit.