Rui Santos 
The BME680 is an environmental digital sensor that measures gas, pressure, humidity and temperature. In this guide you’ll learn how to use the BME680 sensor module with the ESP32 board …
This tutorial shows how to send notifications to your Telegram account when the ESP32 detects motion. As long as you have access to the internet in your smartphone, you’ll be …
This guide explains how to install Node-RED software on a Linux Ubuntu VM (Virtual Machine) using Digital Ocean. Running Node-RED in the cloud allows you to access your Node-RED Dashboard …
If you’re having trouble compiling code for your ESP32 or ESP8266 boards using Arduino IDE due to an error downloading the boards’ URLs, you can follow this guide to help …
In this project we’ll show you how to build an IoT shield PCB for the ESP32 and a web server dashboard to control it. The shield is equipped with a …
This tutorial shows how to setup an ESP8266 board to receive data from multiple ESP8266 boards via ESP-NOW communication protocol (many-to-one configuration). This configuration is ideal if you want to …
Learn how to establish a two-way communication between two ESP8266 NodeMCU boards using ESP-NOW communication protocol. As an example, two ESP8266 boards will exchange DHT sensor readings. We’ll use Arduino …
In this guide, you’ll learn how to make HTTP POST requests using the ESP8266 NodeMCU board with Arduino IDE. We’ll demonstrate how to post JSON data or URL encoded values …
In this guide, you’ll learn how to make HTTP GET requests using the ESP8266 NodeMCU board with Arduino IDE. We’ll demonstrate how to decode JSON data from OpenWeatherMap.org and plot …
In this guide, you’ll learn how to make HTTP POST requests using the ESP32 board with Arduino IDE. We’ll demonstrate how to post JSON data or URL encoded values to …
In this guide, you’ll learn how to make HTTP GET requests using the ESP32 board with Arduino IDE. We’ll demonstrate how to decode JSON data from OpenWeatherMap.org and plot values …
This tutorial is a step-by-step guide that covers how to build a standalone ESP32 or ESP8266 NodeMCU Web Server that controls any relay module using MicroPython firmware. We’ll create an …
In this tutorial you’ll build a web server to control the ESP32 or ESP8266 NodeMCU outputs with a pulse using Arduino IDE. The pulse width (“timer”) can be adjusted using …
This tutorial is a step-by-step guide that covers how to build a standalone ESP32 or ESP8266 NodeMCU Web Server that controls any relay module. We’ll create an ESP32/ESP8266 Web Server …