How to Use I2C LCD with ESP32 on Arduino IDE (ESP8266 compatible)
This tutorial shows how to use the I2C LCD (Liquid Crystal Display) with the ESP32 using Arduino IDE. We’ll show you how to wire the display, install the library and …
ESP32 Projects
Alexa (Echo) with ESP32 and ESP8266 – Voice Controlled Relay
In this project, you’re going to learn how to control the ESP8266 or the ESP32 with voice commands using Alexa (Amazon Echo Dot). As an example, we’ll control two 12V …
ESP32 Over-the-air (OTA) Programming – Web Updater Arduino IDE
Quick guide that shows how to do over-the-air (OTA) programming with the ESP32 using the OTA Web Updater in Arduino IDE. The OTA Web Updater allows you to update/upload new code …
Better Debugging for Arduino IDE: SerialDebugApp (Part 3)
The SerialDebug library created by João Lopes allows you to improve debugging for Arduino IDE. In this article he’ll show you how to use the SerialDebugAp, companion app of the SerialDebug library.
Better Debugging for Arduino IDE using Software Debugger (Part 2)
The SerialDebug library created by João Lopes allows you to improve debugging for the Arduino IDE. In this article he’ll show you how to use the simple software debugger of the SerialDebug library that has most functionalities of an hardware debugger.
Better Debugging for Arduino IDE: SerialDebug Library (Part 1)
The SerialDebug library allows you to improve and do better debugging in Arduino IDE. In this post, João Lopes (creator of the SerialDebug library) shows you how use it in your projects.
ESP32 Flash Memory – Store Permanent Data (Write and Read)
In this article we’ll show you how to store and read values from the ESP32 flash memory using Arduino IDE. The data saved in the flash memory remains there even …
ESP32 Web Server using SPIFFS (SPI Flash File System)
In this tutorial we’ll show you how to build a web server that serves HTML and CSS files stored on the ESP32 filesystem. Instead of having to write the HTML …
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 Static/Fixed IP Address
This tutorial shows how to set a static/fixed IP address for your ESP32 board. If you’re running a web server or Wi-Fi client with your ESP32 and every time you …
Latching Power Switch Circuit (Auto Power Off Circuit) for ESP32, ESP8266, Arduino
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 …
How to Set an ESP32 Access Point (AP) for Web Server
The ESP32 can act as a Wi-Fi station, as an access point, or both. In this tutorial we’ll show you how to set the ESP32 as an access point using …
Installing the ESP32 Board in Arduino IDE (Mac OS X and Linux instructions)
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 …
ESP32 with PIR Motion Sensor using Interrupts and Timers
This tutorial shows how to detect motion with the ESP32 using a PIR motion sensor. In this example, when motion is detected (an interrupt is triggered), the ESP32 starts a …