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Random Nerd Tutorials helps makers, hobbyists and engineers build electronics projects. We make projects with: ESP32, ESP8266, Arduino, Raspberry Pi, Home Automation and Internet of Things. Enter your email address to get started with our free resources and eBooks!

Learn ESP32 with Arduino IDE

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This is practical course where you’ll learn how to take the most out of the ESP32 using the Arduino IDE. This is our complete guide to program the ESP32 with Arduino IDE, including projects, tips, and tricks!

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ESP32 Web Server using SPIFFS (SPI Flash File System)

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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 and CSS text into the Arduino sketch, we’ll create separated HTML and CSS files. For demonstration purposes, the web server we’ll build controls an ESP32 […]

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Install ESP32 Filesystem Uploader on Arduino IDE

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The ESP32 contains a Serial Peripheral Interface Flash File System (SPIFFS). SPIFFS is a lightweight filesystem created for microcontrollers with a flash chip, which are connected by SPI bus, like the ESP32 flash memory. In this article we’re going to show how to easily upload files to the ESP32 filesystem using a plugin for the […]

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MicroPython Programming Basics with ESP32 and ESP8266

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MicroPython is a re-implementation of Python programming language targeted for microcontrollers and embedded systems like the ESP32 or ESP8266.

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Getting Started with MicroPython on ESP32 and ESP8266

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Learn how to get started with MicroPython firmware on the ESP32 and ESP8266. We’ll introduce you to MicroPython, show you the differences between MicroPython and regular Python, and how to program your ESP based boards with MicroPython using uPyCraft IDE. After completing this guide, you’ll have your first LED blinking using MicroPython.

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Flash/Upload MicroPython Firmware to ESP32 and ESP8266

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This posts shows how to flash MicroPython firmware to ESP32/ESP8266 boards using the uPyCraft IDE software. It works on Windows, Linux, and Mac OS X.

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Install uPyCraft IDE – Windows PC Instructions

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There are different firmwares that you can use to program the ESP32 and ESP8266 boards. If you want to program the ESP32 or ESP8266 board using the MicroPython firmware, we recommend using uPyCraft IDE. uPyCraft IDE runs in any major operating system. In this tutorial we’ll show you how to install the uPyCraft IDE for […]

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Install uPyCraft IDE – Mac OS X Instructions

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There are different firmwares that you can use to program the ESP32 and ESP8266 boards. If you want to program the ESP32 or ESP8266 board using the MicroPython firmware, we recommend using uPyCraft IDE. uPyCraft IDE runs in any major operating system. In this tutorial we’ll show you how to install the uPyCraft IDE for […]

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Install uPyCraft IDE – Linux Ubuntu Instructions

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There are different firmwares that you can use to program the ESP32 and ESP8266 boards. If you want to program the ESP32 or ESP8266 board using the MicroPython firmware, we recommend using uPyCraft IDE. uPyCraft IDE runs in any major operating system. In this tutorial we’ll show you how to install the uPyCraft IDE for […]

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How to use ESP32 Dual Core with Arduino IDE

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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 1. In this post we’ll show you how to run code on the ESP32 second core by creating tasks. You can run pieces of code simultaneously […]

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ESP32 Static/Fixed IP Address

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ESP32-static-IP-address

If you’re running a web server or Wi-Fi client with your ESP32 and every time you restart your board the ESP32 has a new IP address, you can follow this tutorial to assign a static/fixed IP address to your ESP32 board.

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Latching Power Switch Circuit (Auto Power Off Circuit) for ESP32, ESP8266, Arduino

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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.

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How to Install Mosquitto Broker on Raspberry Pi

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In this post you’re going 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.

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What is MQTT and How It Works

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In this article, we’re going to introduce you to the MQTT protocol. MQTT stands for Message Queuing Telemetry Transport. It is a lightweight publish and subscribe system where you can publish and receive messages as a client.

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ESP8266 Multisensor Shield with Node-RED

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In this project you’ll discover how integrate the ESP8266 Multisensor Shield for the Wemos D1 Mini board with Node-RED. The ESP8266 Multisensor Shield will establish an MQTT connection with a Raspberry Pi running Node-RED and Mosquitto MQTT broker.

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