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ESP32: Publishing messages to MQTT topic - techtutorialsx Testing the code To test the code, we are going to use an application called MQTTLens, which will allow us to subscribe to a MQTT topic and receive published messages So, open the application and subscribe to the “esp test” topic, which was the one we specified in the ESP32 code After that, just upload and run the code on the ESP32
Python: Subscribing to MQTT topic – techtutorialsx Python: Subscribing to MQTT topic Introduction The objective of this post is to explain how to connect to a MQTT broker and subscribe to a topic, using Python For this example, we will be using paho-mqtt, which is a MQTT Python client library The easiest way to install it is via pip, with the following command:
ESP32 Arduino web server: getting client IP - techtutorialsx The objective of this post is to explain how to obtain the IP of a client that contacts a HTTP web server running on the ESP32, on the Arduino core The tests of this ESP32 tutorial were performed using a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board
ESP32 Arduino: HTTP communication between devices - techtutorialsx Introduction In this tutorial we will check how to establish HTTP communication between two ESP32 devices One of the devices will act as a server and the other as a client In some application scenarios, there might be a need for multiples devices on a network to talk to each other For example, we might design an architecture where there’s a central node responsible for communicating with
ESP32 Arduino HTTP server: external and internal redirects The tests of this ESP32 tutorial were performed using a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board Introduction The objective of this ESP32 exemple code is to explain how to perform redirects using the async HTTP web server libraries on the Arduino core If you haven’t yet installed them, please check here how to