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Send DHT11 temperature/humidity data using MQTT

The following tutorial show you how you can send temperature and humidity data measured by DHT11 sensor connected to a nodeMCU / ESP8266 board with MQTT message. The messages are displayed in the WEB MQTT interactive MQTT web client dashboard with the gauge and chart UI elements. https://rundebugrepeat.com/webmqtt/ The following DHT11 library used: https://github.com/adafruit/DHT-sensor-library Source …

WEB MQTT – First UI elements

In this short tutorial you will learn how you can UI element, like labels, buttons to the interactive dashboard and how to send pre-defined message with the button element. To show the message I will use an other MQTT desktop client, the MQTT.fx desktop client. WARNING! You have to connect to the same broker and …

MQTT – Introduction

MQTT, or Message Queuing Telemetry Transport is an open source, standard, publish-subscribe base network protocol. The use of the protocol is to transport messages over the network between devices. It is an OASIS and ISO Standard (ISO/IEC PRF 20922). It is designed to be a lightweight, small code footprint and limited network bandwith communication protocol.