DX » Community » Reviews » OPENJUMPER 4-CH Relay Module Compatible with Arduino
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  • posted bysberney on 09/22/2014

    Pros : + Good product + Good price + Well quality + Arduino Full compatible product + LED to display activated relay + Work with 5v directly from Arduino board Cons : no cons Really recommanded to make your own DYI electronic system ;-) Time to make it working : 2 minutes :-D Read more

    Impression:Good product;

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