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    Monitoring Temperature and Humidity with Arduino and MQTT (ESP32)

    by Douglas Tober December 20, 2020

    Background This is a quick tutorial for beginners – using ESP32 & DHT11 to collect sensor data and publish it using MQTT. Mobile and server apps can subscribe to the temperature and humidity data from the DHT11. In a future tutorial, I’ll be showing how…

    Architecture, Raspberry Pi 2
    mqtt iot featured image

    MQTT Overview: Simple Protocol for IoT and Messaging

    by Douglas Tober December 18, 2020

    What is MQTT? MQTT is an extremely lightweight protocol that allows for messaging over TCP. It is optimized to handle an insane number of connected clients and increases messaging stability over spotty networks. Although MQTT has been around since 1999, the popularity of the protocol…

    Architecture, Raspberry Pi 1

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