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Modulo relè a 2 canali 12V con protezione del copriottico e modulo esteso Geekcreit per Arduino - prodotti che funzionano con schede Arduino ufficiali

6% OFF Modulo relè a 2 canali 12V con protezione del copriottico e modulo esteso Geekcreit per Arduino - prodotti che funzionano con schede Arduino ufficiali US$10.38 US$10.99 View It

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The_Emard 19/06/2020

This one doesn't come with instructions but it works great. You need to remove the Jumper Between VCC and JD-VCC. JD-VCC must be wired to +12V and GND to -12V. VCC must be wired to +5V and GND to -5V. The optocoupler works as low and high input which means you must go from input pin to whatever switch you have. Then you just go from the switch to ground. (5V source ground) (NO or NC... whatever it will only change in which switch's position the relay gets activated.) If you did everything correctly you should see a red led light up when the relays are activated. Hopefully this review will help you save time !

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