Getting Started with Raspberry Pi
This article is an introduction to the Raspberry Pi. Learn what a Raspberry Pi is and what you can use it for. Explore its features, set it up, and install …
Install Mosquitto MQTT Broker on Raspberry Pi
In this post explains how to install the Mosquitto Broker on a Raspberry Pi. The broker is primarily responsible for receiving all messages, filtering the messages, decide who is interested in it and then publishing the message to all subscribed clients.
How to use ESP32 Dual Core with Arduino IDE
The ESP32 comes with 2 Xtensa 32-bit LX6 microprocessors: core 0 and core 1. So, it is dual core. When we run code on Arduino IDE, by default, it runs on core …
ESP32 with FreeRTOS: Software Timers/Timer Interrupts (Arduino IDE)
In this guide, you’ll learn how to use software timers (timer interrupts) with the ESP32 using FreeRTOS programming on Arduino IDE. We’ll take a look at auto-reload (periodic) timers and …
Arduino UNO Q: Getting Started (Features, Pinout, Examples)
The Arduino was recently acquired by Qualcomm, and with that, they launched a completely new Arduino board: the Arduino UNO Q. While it maintains the same form factor as previous …
ESP32: Save Wi-Fi Credentials in a Separate File (and Other Sensitive Information)
Learn how to securely store Wi-Fi credentials and other sensitive information in a separate file for your ESP32 projects (also works for other Arduino based projects). This approach eliminates the …
ESP32 GPIO Interrupts with Arduino IDE
Learn how to configure and handle interrupts with the ESP32 board to detect and respond to changes on its input GPIOs. We’ll build a project example using a pushbutton and …
ESP32 with PIR Motion Sensor using Interrupts and Timers (Arduino IDE)
Learn how to use a PIR (Passive Infrared) Motion Sensor with the ESP32 programmed with Arduino IDE to detect motion. We’ll create a simple example to introduce you to the …
ESP-IDF: ESP32 GPIO – Read Digital Inputs
In this guide, you’ll learn how to set and read the ESP32 board’s GPIO pins as digital inputs with ESP-IDF (Espressif IoT Development Framework). The ESP32 is a microcontroller that …
BLE Communication between Raspberry Pi and Raspberry Pi Pico W
This tutorial explains how to set up Bluetooth Low Energy (BLE) communication between a Raspberry Pi and a Pico W. We’ll start by covering the basics of BLE, including the …
Getting Started with Thonny MicroPython (Python) IDE for ESP32 and ESP8266
If you want to program your ESP32 and ESP8266 with MicroPython firmware, it’s very handy to use an IDE. In this guide, we’ll introduce you to Thonny IDE. After completing this …
ESP32 with FreeRTOS: Getting Started with Semaphores (Arduino IDE)
In this guide, we’ll introduce you to and explain how to use FreeRTOS semaphores with the ESP32, using the Arduino IDE. Semaphores are like signals (or flags) that allow you …
ESP-IDF: Create Template ESP32 Project using VS Code
This is a quick guide for getting started using ESP-IDF with the ESP32. Learn how to create a template on VS Code to program your ESP32 using ESP-IDF. Prerequisites Before …
MicroPython: ESP-NOW with ESP32—Receive Data from Multiple Boards (many-to-one)
In this MicroPython guide, we’ll show you how to set up an ESP32 to receive and display data from multiple ESP32 boards using the ESP-NOW communication protocol (many-to-one configuration). We’ll …