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arduino relay

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arduino relay Customers Reviews

  • Excellent value for money

    posted by Hendrik24051972

    This relay has an easy and understandable layout. It activates the relays on "high trigger", which I find useful for my applications.
    I wish I had bought the 8 Channel version instead of the 4 Channel. I'm using this one for 1 month, and I already have a destination for each of the 4 relays.I like this module, really works as designed.
    This is value for money. If you want relay functionality for your Arduino, then this is the relay-module you need.
  • A good set of relay

    posted by Coolish

    Easy-to-use relay board for an electronic project.Requres "standard" digital supply voltage 5V DC. Signal inputs accept 3.3V levels too because of on-board transistors.Small size and mounting holes allow to fit into required place.
    Drawn current per relay is about 80 mA. If all the relays are on, 640 mA is drawn from the 5V source.Main LED is red and channel LEDs are green.
    A good deal for DIY electronics to manage multiple external AC loads.
  • 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.
  • Good price but lower quality

    posted by Andrebureau99

    Very good price, low foot print, can be put to use with arduino or other type of CI. I like the way the inputs of the relay are on terminals, can be installed on standard small metal stands. Because of the price I prefer to use this unit unstead of a multiple one so if I had to make a change it's not a big deal. For myself I like the color it add to my project.
    Still, will purchase again but always two units or more so I can accept to have one defect.
    Nothing for now.
  • Costs less than the individual components

    posted by spookydonut

    All the joints are well soldered, no dry or cracked joints.Terminals for the relays are marked NO/NC on the silkscreening.The circuit design is pretty robust, with the external power supply for driving the relays, you only need a few milliamps to switch all the way up to 10A 250VAC or 30V DC.
    If you don't like or need this specific circuit and want to spin your own, expect to pay ~$20 for the relays alone.
    Use it or strip it for parts, either way this is a great value purchase.
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