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arduino relay board

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arduino relay 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.
  • 8 relays at a good price

    posted by 0xFBi

    Good quality PCB carries 8 relays, the contact tracks are thick to carry 10 Amps without burn.The relays are driven by optocouplers so to have good insulation between the logical unit from power unit. A jumper permits to bypass the optocoupler and have the same common line between the input drive and the relay solenoid.The board has 1 power indicator LED and 1 LED for each relay.
    The board is very simple to use and here http://www.henningkarlsen.com/electronics/library.php?id=57 you can find a good library to test and use it.
    if you use the board with 220 Vca put an insulation shield under the board.
  • Good for Proto and maybe production

    posted by TimTheEngineer

    - Includes screw through mouts for mounting to a chassis or project board- Very cheap to include two relays, PCB, headers, and driver circuits.- Very simply wiring because of screw terminals- Does come in a small anti-static bag
    If you can run a meter and need a simple 2CH relay circuit you would be hard pressed to build this for less not to mention the time it would take.For a Proto it's a no brainer, buy two.
  • 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.
  • Easy & Fun

    posted by bucioservice

    The module is very beautiful made ??of good material. It 'very solid. Easy to use and very funny. And 'possible to control the 220v with 5v arduino through. There are many applications for this module. Very useful and interesting article. The package was well sealed and secure.
    The package was delayed but the assistance of the site was ready to answer.ok +
    Good quality. Easy to use. Good price.great product .


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