A site about programming, IoT and technology. Find tutorials for many different projects.
In this tutorial we will check how to serve an external CSS file, to be included by an HTML file. This will be implemented on the ESP32 running the Arduino core and using the HTTP async web server libraries. The tests were performed using a DFRobot’s ESP32 module integrated in a ESP32 development board.
Continue reading “ESP32 Arduino web server: Serving external CSS file”
In this tutorial we will check how to obtain temperature measurements from a DHT22 sesnor using the ESP32, the Arduino core and timer interrupts. The tests were performed using a DFRobot’s ESP32 module integrated in a ESP32 development board, and a DFRobot DHT22 module.
Continue reading “ESP32 Arduino: Getting DHT22 sensor measurements with interrupts”
In this tutorial we will learn how to read the status of a LED from the Micro:Bit‘s LED matrix, using MicroPython.
Continue reading “Micro:bit MicroPython: Getting the status of a LED”
In this tutorial, we will check how we can print numbers to the serial port using different bases, more specifically in binary, octal and hexadecimal. 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: Printing numbers to serial in different bases”
In this tutorial we will learn how to turn on and off specific LEDs from the micro:bit‘s LED matrix, using MicroPython, including controlling their brightness.
Continue reading “Micro:bit MicroPython: Turning on and off the LEDs of the matrix”
In this tutorial we will check how to use the * operator to generate a repetitive sequence of a string. This tutorial was tested on MicroPython running on a micro:bit board.
In this tutorial we will check how to setup a HTTP web server on the ESP32 that will have a websocket endpoint and that will serve a HTML file containing JavaScript code to establish a websocket connection to the server. The tests were performed using a DFRobot’s ESP32 module integrated in a ESP32 development board.
Continue reading “ESP32 Arduino web server: Receiving data from JavaScript websocket client”
