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relay channel Customers Reviews

  • Works fine

    posted by tylernt

    Standard 4-channel relay board. Has transistors for the relay coils, and flyback diode protection. Relays close on HIGH signal, just as you would expect.
    Board draws 3mA with no relays closed. Each relay coil draws about 80mA when activated. Red "power" indicator, green relay indicators.
    Not sure what more I can say about it? It's a standard 4-channel relay board.
  • Great product

    posted by fcastello80

    This is a very good shield for arduino. Very plug and play. So no soldering is needed. Very usefull for controlling electronic stuff and lights at home.
    I will use it to make a manageable power strip. This way I can control stuff over the network with ethernet shield or usb
    This is a very good shield for arduino. Very plug and play. So no soldering is needed. Very usefull for controlling electronic stuff and lights at home.
  • excellent board

    posted by DSAutomacao

    Plate very good to do projects and drives equipment using voltage higher than 5V, you can make a pretty cool automation to your home or anywhere else. Very good indeed she is well crafted welding is done well, really a product of first and besides the price is very cheap. Great build, easy to setup and come exactly as advertised. It is increbly cheap compared to the stuff that is packed into this products
    Comes packed in a cardboard box and a layer of plastic, all pins are perfect as well as the relays. everything ok
    I will do my drives home with this relay. I will continue buying more.
  • Nice relay board with opticouplers for safety.

    posted by OgreRO

    It does work very easily and you do not need even a microcontroler to use it.Can handle 220V few amps as I need.
    You can use this for your home automation project to switch on some lights or any other apliance like a water pump for your automatic watering system.
    I definitely reccomend this over the one without optocouplers for higher safety. If you considering do not hesitate and buy it. It is cheap.
  • Really nice Relay for the price

    posted by tedao00

    For people who like prototyping stuff it is a really nice module. Very easy to use and very well built. For the price it is a really nice thing to purchase.
    Very well built, very cheap, nice quality, nice for home projects for hobbyist and student. Written in chinese, but this is not a big problem.
    A must have for those who make projects at home. If you need and would use, purchase it.
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