5 V 4-Kanal Relaismodul Schild für Arduino ARM PIC AVR DSP Electronic
ab 4,71 €
Input IN1, IN2, IN3, IN4 signal line is active low. VCC, GND power input can be individually powered relay relay power input JD-VCC. 1, NO1 - NO4: normally open relay interface, the relay before the vacant after the pull shorted with COM.
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