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ESP32 JavaScript: Getting started with Espruino
ESP32 JavaScript: Getting started with Espruino
The objective of this post is to explain how to get started using Espruino, a JavaScript interpreter for microcontrollers, on the ESP32. This tutorial was created on Windows (version 8.1) and was tested on a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board.
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ESP32: JSON Patch
Introduction In this tutorial we are going to learn how to use the Nlohmann/json library to apply the JSON patch operation to an object, using the ESP32 and the Arduino core. JSON patch allows to start from a source object, define a set of operations that describe how that object should be modified, and obtain a target object that is the result of those operations. Note that JSON patch (RFC…
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ESP32: Ambient Light Sensor
ESP32: Ambient Light Sensor
Introduction In this tutorial we will learn how to connect an Ambient Light Sensor and an ESP32, and get analog measurements using the Arduino core and the ESP32 ADC. I’ll be using this sensor module from DFRobot. The tests shown below were performed on a ESP32-E FireBeetle board, also from DFRobot. The ambient light sensor As already mentioned, we are going to use this sensor module from…
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ESP32 Arduino HTTP server: Running multiple server instances
The objective of this post is to explain how to use multiple HTTP server instances on the Arduino core, running on the ESP32. The tests of this ESP32 tutorial were performed using a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board.
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ESP32 Arduino SSD1306 OLED: Redrawing a string
The objective of this post is to explain how we can change the value of a string drawn in the SSD1306 OLED display, using the Arduino core running on the ESP32. For this tutorial, an Elecrow’s version of the SSD1306 OLED display was used. The ESP32 board used was a NodeMCU.
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ESP32 Arduino: Software reset
The objective of this post is to explain how to perform a software reset on the ESP32, using 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.
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ESP32 Arduino: Asynchronous HTTP webserver
The objective of this post is to explain how to configure an asynchronous HTTP webserver on the Arduino core running on the ESP32. The tests of this ESP32 tutorial were performed using a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board. (more…)
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ESP32 RFID: Printing the MFRC522 firmware version
ESP32 RFID: Printing the MFRC522 firmware version
The objective of this post is to explain how to get started with communicating with a MFRC522 RFID card reader from the ESP32. The tests were performed using a DFRobot’s ESP-WROOM-32 device integrated in a ESP32 FireBeetle board.
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