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relay module board

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relay module board 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 vulture156

    Great product, works great, very cheap and saves a lot of development time, excellent quality.highly recommended product.
    I am surprised by the quality of the board
    Excellent board, very easy to use, highly recommended for the price, saves a lot of development time. Very cheap compared to the prices in my country (Argentina). A pretty reasonable delivery period
  • 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.
  • Very Nice

    posted by fredejavite

    Very good pieces. All the components are very nice. I bought to turn on lights in my home. The LEDs helps you see easily what relays are ON.
    I recommend for house automation projects. But you can use for another projects.
    I recommend this item. Not so cheap but it's very good.I pretend to buy more 2 or three, and install for all my house.
  • great relays, recomended for arduino

    posted by MaartenArits

    very good relay series, easy to use. just connect the ground and 5V and you are ready to go. by pulling down the appropriate pin a LED turns on and the relay switches. This ensures that your microprocessor or other control circuit will have minimal power drain.
    Great quality for that small amound of money!
    if you need 8 relays, this is the way to go!

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