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WEB MQTT – NodeMCU / ESP8266

The following video will shows how to control nodeMCU / ESP8266 with MQTT messages. In this first example I will control the builtin LED of the module with mqtt messages. The messages ar sent from the dashboard with buttons and a switch with pre-defined “on” and “off” messages. https://rundebugrepeat.com/webmqtt/ source code for the arduino code:

Install Mosquitto MQTT Broker on Raspberry Pi

In this post I will show you how to install Mosquitto MQTT broker on Raspberry Pi or Orange Pi embeded systems. Prerequisites Raspberry Pi, or Orange Pi board with debian-based operating system installed on it. Power supply and internet connection to the board Installation1.: Open a new terminal window 2.: Update the system with:pi@raspberry:~ $ …

NodeMCU

IntroductionNodeMCU is an ESP8266 Wi-Fi SoC (System On a Chip) based, open soruce IOT platform. The Base chip is an ESP8266 ESP-12 module.The name, “NodeMCU” refers mainly to the firmware itself, rather than the develeopment kit. The firmware uses Lua scripting language, but also available for Arduino IDE platform. So if you are familiar with …

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.