Author Archives: Gnd_To_Vcc

This article is a quick getting started guide for the ESP32-CAM board. We’ll show you how to setup a video streaming web server with face recognition and detection in less than 5 minutes with Arduino IDE. Note: in this tutorial we use the example from the arduino-esp32 library. This tutorial doesn’t cover how to modify theContinue reading “ESP32-CAM Video Streaming and Face Recognition with Arduino IDE”

After releasing some projects with the ESP32-CAM, some readers reported issues when trying to use the ESP32-CAM. This guide is a compilation with the most common errors when using the ESP32-CAM and how to fix them. We’ve released the following projects with the ESP32-CAM: Video Streaming, Face Detection and Face Recognition ESP32 IP CAM – Video StreamingContinue reading “ESP32-CAM Troubleshooting Guide: Most Common Problems Fixed”

There’s an add-on for the Arduino IDE that allows you to program the ESP32 using the Arduino IDE and its programming language. In this tutorial we’ll show you how to install the ESP32 board in Arduino IDE whether you’re using Windows, Mac OS X or Linux. If you have any problems during the installation procedure,Continue reading “Installing the ESP32 Board in Arduino IDE (Windows, Mac OS X, Linux)”

In this article we’ll show you how to build a Latching Power Switch Circuit, also know as an Auto Power Off Circuit. You can use this circuit to auto-power off the ESP32, ESP8266, Arduino, or any other microcontroller. This circuit allows you to cut off power completely when the microcontroller is not executing any task. In otherContinue reading “Latching Power Switch Circuit (Auto Power Off Circuit) for ESP32, ESP8266, Arduino”

In this project you’ll create a standalone web server with an ESP8266 that can toggle two LEDs using Arduino IDE. This ESP8266 Web Server is mobile responsive and it can be accessed with any device that as a browser in your local network. For a more in-depth tutorial on how to create a web server, andContinue reading “ESP8266 Web Server with Arduino IDE”

In this post you’re going to build a weather forecaster with an ESP8266. I hate being out on a rainy day without an umbrella and I’m pretty sure it’s the same for everyone else. Often, the weather widget on our smartphones displays the weather forecast but when you’re in a hurry you forget to payContinue reading “ESP8266 Weather Forecaster”

In this project you’re going to post a Tweet with an ESP8266. The goal of this project is to show the endless possibilities that this $4 WiFi module offers when integrates with a free platform that I’m about to show you. In order to accomplish this task you have to sign up for one free service called IFTTT which standsContinue reading “Posting a Tweet with the ESP8266”

This tutorial is a step-by-step guide that shows how to build a standalone ESP8266 Web Server that controls two outputs (two LEDs). This ESP8266 NodeMCU Web Server is mobile responsive and it can be accessed with any device with a browser in your local network. If you want to learn more about the ESP8266 module,Continue reading “Build an ESP8266 Web Server – Code and Schematics (NodeMCU)”

This article is a guide about the popular Ultrasonic Sensor HC – SR04. We’ll explain how it works, show you some of its features and share an Arduino project example you can follow to integrate in your projects. We provide a schematic diagram on how to wire the ultrasonic sensor, and an example sketch to useContinue reading “Complete Guide for Ultrasonic Sensor HC-SR04 with Arduino”