Update analog value button, when pressed in node-red ui, sends esp32/retrieve value 1, so controller sends all data to mqtt. Every 15 seconds, esp32 publishes temperature and humidity to mqtt, and set ...

IoT Sensor Hub with ESP32, Node-RED, and MQTT on Raspberry Pi Description This project demonstrates the integration of an ESP32 microcontroller with a Raspberry Pi using MQTT to publish sensor data, ...

Discover Node-RED: A powerful, open-source tool for visual programming that simplifies IoT, automation, and data integration. Learn how to get started today!

The ESP32 is running the Tasmota firmware to keep from having to reinvent the wheel, while MQTT was chosen as a protocol for controlling these outlets to allow for easy integration with the ...