In this guide, you’ll learn how to use ESP-NOW to control multiple ESP32 boards from a single ESP32 main controller (one-to-many setup). Think of it like a remote control that …
In this guide, you’ll learn how to use a FreeRTOS Mutex with the ESP32 programmed with Arduino IDE. A Mutex (Mutual Exclusion) is a special type of binary semaphore that …
Learn how to set up Multicast DNS (mDNS) on your ESP32 programmed with the Arduino IDE. mDNS lets you refer to your ESP32 using a user-friendly name instead of its …
In this guide, you’ll learn how to set and read the ESP32 board’s GPIO pins as ADC (Analog to Digital Converter) with ESP-IDF (Espressif IoT Development Framework). The ESP32 is …
Learn how to make HTTP GET Requests with the ESP32 or ESP8266 boards programmed with MicroPython. We’ll first cover the basics of HTTP GET requests, and then, we’ll create and …
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 …
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.
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 …
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 …
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 …
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 …
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 …
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 …
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 …