Relay Driver Board, 21 Channels, 12V, Arduino 2560 shield, Node Red, MQTT, W5100 Ethernet

    In this video I will continue with my home automation system. I created a 21 channel 12v relay driver board shield for an arduino mega 2560. It uses the same MQTT broker and Node Red server that are setup on my raspberry pi from my previous video. It also uses the w5100 ethernet shield for connecting to the home network and the MQTT broker.
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    ORIGINAL POST
    By Boris Dusnoki
    components
    Hardware Components
    Arduino 2560 Mega
    X 1
    W5100 Ethernet Shield
    X 1
    Raspberry Pi Zero
    X 1
    Software Apps and online services
    Arduino
    EasyEDA Project
    details

    Screenshot (268).png

    Original link: https://youtu.be/ZOzFaQZjA94

    Screenshot (268).png

    Original link: https://youtu.be/ZOzFaQZjA94

    documents
    Code
    PubSubClient Library
    Arduino Sketch

    COMMENTS

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    POSTED BY
    mathad
    Reusable S/W
    W5100S Series Library