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  • Works great with Arduino Uno

    posted by diypwn on 05/27/2013
    0

    Involvement:General (knows how to use it) - Ownership:more than 1 month

    Pros:

    Works out of the box with 5V microcontroller boards like the Arduino Uno. Just hook it up to Ground, 5V and a pin of your choice. Use writeDigital(HIGH) or LOW to switch the relay on or off (or rather close the circuit Common - Normally Open).

    Cons:

    The screw terminals (NO, NC, C) are not properly labeled so you will have to figure out which one is which by yourself. The Common terminal is in the middle :)

    The click is pretty loud and may be a bit annoying if you put your completed project in the bedroom.

    OtherThoughts:

    I have only used this relay with 12V DC fans that together draw less than 1A current. Even if the relay is rated higher I would not take the risk to go anywhere near the rating.

    Bottomline:

    Good value for money if you only need a single relay. Works great with 5V boards like Arduino Uno.

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