STM32 IoT with ESP8266 #3: MQTT Connect and Publish Data

Learn how to connect your STM32 IoT board with ESP8266 WiFi module and use the MQTT protocol to publish messages step by step. ▶︎ Download project files and full article here: ☞ https://controllerstech.com/stm32-mqtt-connect-and-publish/ ▶︎ MQTT doc shown in the video : https://controllerstech.com/wp-content/uploads/2025/09/MQTT_Doc.pdf ▶︎ MQTT 3.1.1 Complete Doc : https://docs.oasis-open.org/mqtt/mqtt/v3.1.1/mqtt-v3.1.1.pdf ▶︎ Related Videos: 1️⃣ STM32 + ESP8266 Wi-Fi Setup and Connection (Part 1) → https://youtu.be/Y3SWPjzqJ3Y 2️⃣ Send Sensor Data to ThingSpeak Cloud (PART 2) → https://youtu.be/KbAnyX5i6zQ ▶︎ STM32 Playlist → https://www.youtube.com/playlist?list=PLfIJKC1ud8gga7xeUUJ-bRUbeChfTOOBd 🔔 Subscribe for more STM32 and IoT tutorials. 👍 Like and share if this helped you build your project. #STM32 #ESP8266 #MQTT #IoT #EmbeddedSystems #STM32Tutorial #MQTTProtocol #PublishMessages #IoTProjects ________________________________________________________________________________________ ******* SUPPORT US BY DONATING******