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relay module

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relay module Customers Reviews

  • Works great with Arduino Uno

    posted by diypwn

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

    posted by Vinilostore

    It is an original Arduino product. Good assembly and all inputs and output are labeled. It arrived safelly packaged in a bubble bag inside a carton box. Low price.
    I think that is a good buy.It can be useful for another electrical circuit, although arduinos
    I would buy another if i need it because of it reasonably price.You have the security that is an authenthic product.
  • Easy to use, high power relay module

    posted by bigjack65

    Really high quality product. Board is made of good material, relay tracks are large to manage hi power, there is a milling in the PCB to ensure insulation between power and control tracks. Every channel have it's own led as monitor. Driver and relay are decoupled with an optocoupler assuring kilovolt of protection. You can separate supply for driver and for relay.
    Important to say: relay driver has a NEGATIVE logic: relay is activated when input is tied to ground.
    Definitely a great product of great quality. I've just ordered another.
  • 8 chanel 12 V relay module for Arduino

    posted by hrpanchal

    Relays are preety good quality and repsonse time for this module is very small. It is great for most of all applications for Arduino. I used for Arduino UNO and it works great.I used to do most of task like turn on heavy motors 110V drawing more current, it works great.
    If you want to reduce power supply connection, use 5V relays module, which you can power from Arduino itself.
    Bottom line, it works great with any Arduino. Only external 12V power is require.
  • Best for Home Automation

    posted by crisroeder

    Came well packed, It has an LED indicating power supply 5 Vdc, and 8 LED to indicate when the contact is closed. The descriptions are not in chinese!
    Remember buying some Male to Female jumpers (SKU: 146935) and to have a mini screwdriver for the tiny screws of the relays! Also take care working with high voltages and high currents! Try testing the contact with small voltages like turning on flashlights.
    Cheap, and versatile.


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