How to hook up a 12V Relay Module? - General Electronics - Arduino Forum
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I have this module and wonder if I can use it with Arduino. The labels of the input pins are hidden in the images they supply. The input pins are 'DC-', 'DC+', and 'IN'. The only hookup that makes sense is to provide 12V to the DC+ and DC-. The module and Arduino must share a common ground. A pin from Arduino will drive the 'IN' input. But will it work? Or, do you suggest I set it aside and order a 5V relay module?
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