2Stks 1 Channel 5V Relay Module for Meage 2560 1280 ARM PIC AVR DSP
2,37 €
2 1 Channel 5V Relay Module Shield. VCC: Power interface ,5V. With power and relay action indication, bright when connect and go off when disconnects. hope you could understand. When there is a signal in signal input, public side and common side will breakover.
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