In this tutorial we will check how to obtain a temperature measurement from the DS18B20 sensor and serialize it using the MessagePack format. The tests were performed using a DFRobot’s ESP32 module integrated in a ESP32 development board and a waterproof version of the sensor.Continue reading “ESP32: serializing DS18B20 temperature measurement to MessagePack format”
The objective of this post is to explain how to send JSON messages over MQTT using the ESP32.
The objective of this post is to explain how to make a POST request containing JSON data to a cloud server, with the ESP8266. The cloud server will be implemented using Flask and will be hosted in Pythonanywhere.
The objective of this post is to explain how to encode a JSON message using the ArduinoJson library.