In this tutorial we will learn how to find the union of two arrays, using the C++ cpplinq library. 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 cpplinq: Finding the union between two arrays”ESP32 Arduino: HTTP communication between devices
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”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”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”ESP32 cpplinq: Filtering arrays of objects
In this tutorial we will learn how to filter an array of objects using cpplinq. The tests shown on this tutorial were performed using an ESP32 board from DFRobot.
Continue reading “ESP32 cpplinq: Filtering arrays of objects”