Hi. I'm working on a project that needs to work a machine that has 12.5A. So, I assume this relay module, SLA-05VDC-SL-C, can do the work. But I don't know how to wire and code this. Please help me. Thank you. 
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What do you need to control about this machine?
Its on and off power.
SLA-5VDC-SL-C Datasheet, PDF - Alldatasheet
Use a DVOM to trace bottom side of board.
What with?
Switch, controller????????
Tom... 
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