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. This tutorial was tested using two different ESP32 board models: a Beetle board and a FireBeetle board, both from DFRobot.
Continue reading “ESP32 Arduino: HTTP communication between devices”ESP8266 Arduino: Testing the cpplinq library
In this tutorial we will check how to use the cpplinq library on the ESP8266. The tests shown on this tutorial were performed on a DFRobot’s ESP8266 FireBeetle board.
Continue reading “ESP8266 Arduino: Testing the cpplinq library”ESP32 Arduino: Updating firmware from the SPIFFS file system
In this tutorial we will learn how to update the firmware of the ESP32 from a binary file on the SPIFFS file system of the device. The tests shown here were performed using an ESP32 board from DFRobot.
Continue reading “ESP32 Arduino: Updating firmware from the SPIFFS file system”ESP32 Arduino: Exporting binary file of compiled sketch
In this tutorial we will learn how to generate and export a binary file for a compiled ESP32 Arduino sketch. To do it, we simply need to use the Arduino IDE.
Continue reading “ESP32 Arduino: Exporting binary file of compiled sketch”ESP32: serializing DS18B20 temperature measurement to MessagePack format
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”ESP32 / ESP8266 Arduino: Range-based for loop by reference
In this tutorial we will learn how to do a range-based for loop by reference, over an array if integers. The tests on the ESP32 were performed using a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board. The tests on the ESP8266 were performed on a DFRobot’s ESP8266 FireBeetle board.
Continue reading “ESP32 / ESP8266 Arduino: Range-based for loop by reference”ESP32 / ESP8266 Arduino: Range-based for loop
In this tutorial we will learn how to iterate over an array of integers using a range-based for loop. The tests on the ESP32 were performed using a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board. The tests on the ESP8266 were performed on a DFRobot’s ESP8266 FireBeetle board.
Continue reading “ESP32 / ESP8266 Arduino: Range-based for loop”ESP32 ArduinoJson: printing the keys of the JsonDocument
In this tutorial we will learn how to print all the keys of a JsonDocument, using the ESP32 and the Arduino core. This tutorial targets version 6 of the ArduinoJson library. The tests shown here were performed using an ESP32 board from DFRobot.
Continue reading “ESP32 ArduinoJson: printing the keys of the JsonDocument”Node.js: MessagePack serialization
In this tutorial we will learn how to serialize content to the MessagePack format, using Node.js.
Continue reading “Node.js: MessagePack serialization”ESP32: Deserializing MessagePack
In this tutorial we will learn how to deserialize a MessagePack payload, using ArduinoJson and the ESP32. The tests were performed using an ESP32 board from DFRobot.
Continue reading “ESP32: Deserializing MessagePack”