Keyes KY - 019 Arduino Compatible with Practical DC 5V Relay Module for DIY Project

- 111513701

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The Arduino 5V relay module is suitable for SCM development, home appliance control. It is with 5V - 12V TIL control signal which can control DC / AC signal. The module is perfect for common Arduino application.



Type: Relay module board
Model: Keyes KY-019
Mainly Compatible with: Ardunio

Electronic Components

Architecture: Arduino
Operating voltage: 5-12V
Signaling Type: TTL

Weight and Size

Product weight: 0.0050 kg
Package weight: 0.0550 kg
Package Size(L x W x H): 7.00 x 5.00 x 2.00 cm / 2.76 x 1.97 x 0.79 inches

Package Contents

Package Contents: 1 x Module

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FAQ for Keyes KY - 019 Arduino Compatible with Practical DC 5V Relay Module for DIY Project

  • I've plugged my Raspberry Pi in, but nothing is appearing on the screen. What's wrong?

    It is important that you connect your cables in the correct order, ensuring that the HDMI cable is plugged in before the power.
  • Only the red light on my Pi is on! Is it broken?

    1. Check that your SD card is inserted correctly into your Raspberry Pi.

    2. Check that your SD card contains the software required for the Raspberry Pi to boot.

  • Do I need another computer to use a Raspberry Pi?

    You don't need another computer to use a Raspberry Pi, as it's a computer in its own right. However, when you need to create new micro SD cards, you might need occasional access to another computer.
  • I've copied NOOBS to an SD card, but it gets stuck on the splash screen. What should I do?

    If NOOBS won't load once you have copied the files over, it may be that you have a corrupt SD card. If you've tried a different SD card and NOOBS still doesn't work, then you might want to try installing Raspbian directly.
  • I have a Raspberry Pi 3. Do I need a special power supply?

    For most uses, the original official power supply will be fine.
  • Why Raspberry Pi boot sequence failures?

    Unlike a PC, the Raspberry Pi does not have a BIOS, so without a working software image, it is stone-cold-dead. Without a working OS, and if the power supply works, the only thing guaranteed to happen is that the red power LED turns on. If an image at least starts to boot, then looking at the status LEDs and the HDMI monitor can provide some indication of where the boot process failed.
  • Rainbow screen, what can i do?

    The rainbow flash screen should only appear for about a second (good). If the boot process halts with the rainbow screen on the monitor (bad), there may be a power supply issue, or a kernel software problem.
  • Bad or missing SD card, what is the problem?

    Using a Raspberry Pi 2 as an example, if there is no activity on the monitor and if the red and green status LEDs stay lit and un-blinking after power up, the SD card may not be fully inserted, not detected properly, not flashed or not formatted correctly.
  • No WiFi networks found during discovery scan?

    The activity LED on the WiFi dongle provides minimal indication of WiFi activity. If No WiFi networks are found, and it is flashing normally, there is no WiFi reception. If not flashing at all, the power requirements of the WiFi dongle may be over 150 mA, too high for a Pi USB port, or over 300 mA on a Pi B+, 2, and later versions (unlikely).
  • Why local WiFi network not found?

    It may take one or two minutes to find all available WiFi networks. If the local network does not appear in the list, the WiFi portion of the local router may be down or disabled, reception may be bad, or the router may not be responding to WiFi discovery.

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Customer Reviews

4.86 out of 5
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  • Chris Stinson
    Real world control from Arduino!
    Small, Fast, and precise

    This little relay works great for incorporating controls into your projects beyond the 3.3v or 5v limits of arduino.
    not all relays use the same logic. make sure you write code correctly for your relay/devices

    May 28,2016

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  • Jardel
    Product arrived in perfect condition, excellent build quality, esp32 will have many future ultilities, gearbest congratulations

    Jun 03,2018

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  • rasidvkl
    Everything matches the description and has arrived at the expected time. Beautifully packaged and not damaged. I am very pleased.
    I have absolutely no complaints, everything was as I expected. For that price more than excellent.

    Oct 31,2016

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  • Michael
    great addon
    great addon for rasberry pi. use relay to turn on items. Very cool!

    Mar 29,2017

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  • Aroniel
    Relátko dorazilo v pořádku je plně funkční
    Kvalitní zpracování určené na vaše projekty s arduinem na napětí 5V
    žádné jsem u tohoto výrobku nenašel

    Mar 21,2018

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  • dj_ste
    good product
    Perfectly works with arduino. good product.

    Apr 21,2015

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  • António Almeida
    Good quality, ideal for electronic experiments.

    Apr 03,2016

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  • Mirko
    Relay module DC 5V
    Ottimo packaging, conforme alla descrizione, testato e funzionante.

    Nov 05,2017

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  • niceman
    very good...
    great price!! works great

    great price!! works great


    Jan 27,2015

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  • Deepak
    Arduino compatible
    Good quality. Not tested yet

    May 05,2017

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