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

Alexa (Echo) with ESP32 and ESP8266 – Voice Controlled Relay

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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 lamps connected to a relay module. We’ll also add two 433 MHz RF wall panel switches to physically control the lamps. 

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WiFiManager with ESP8266 – Autoconnect, Custom Parameter and Manage your SSID and Password

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In this guide you’ll learn how to use WiFiManager with the ESP8266 board. WiFiManager allows you to connect your ESP8266 to different Access Points (AP) without having to hard-code and upload new code to your board. Additionally, you can also add custom parameters (variables) and manage multiple SSID connections with the WiFiManager library.

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Build an ESP8266 Web Server – Code and Schematics

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This tutorial is a step-by-step guide that shows you how to build a standalone ESP8266 Web Server that controls two outputs (two LEDs). This ESP8266 Web Server is mobile responsive and it can be accessed with any device that as a browser in your local network.

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Our Most Popular Project Ever & Updates

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We’ve been working hard at RNT and Maker Advisor, and publishing a new project or article once or twice a week. Additionally there’s a lot of new stuff going on, and we have some exciting news for you. Keep reading this post to stay up to date with all the news.

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ESP8266 Daily Task – Publish Temperature Readings to ThingSpeak

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In this project you’re going to learn how to build a sensor node with an ESP8266 that publishes the temperature and humidity once a day to a free service called Thing Speak.

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Build an All-in-One ESP32 Weather Station Shield

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In this project I’ll show you how you can build an all-in-one ESP32 weather station shield and display the sensor readings on a web server. The web server displays data from all the sensors and automatically updates the readings every ten seconds, without the need to refresh the web page.

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ESP8266 Web Server with Arduino IDE

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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.

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Node-RED with Xiaomi Mijia Bedside Lamp (Wi-Fi and Bluetooth)

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In this tutorial we’ll show you how you can integrate the Xiaomi Mijia Bedside Lamp with Node-RED. The Xiaomi Mijia Bedside Lamp is a smart lamp with built-in Bluetooth and Wi-Fi. It can be controlled with touch, using the Yeelight app, or using an home automation platform like Node-RED.

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CCTV Raspberry Pi Based System with Storage using MotionEyeOS

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In this project Julian is going to show you how to build a complete Raspberry Pi based home surveillance system in which you can manage all your cameras from one single place using MotionEyeOS. The system built also allows you to save your frames from all your cameras in a 1TB SATA drive.

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What’s the Best Raspberry Pi Camera For Your Project?

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In this post Julian is going to show you several options of cameras for the Raspberry Pi. He will compare its specifications and run some tests to analyse the pictures taken from each of them in different scenarios. After the tests, you should be able to pick up the most suitable camera for your needs.

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Install MotionEyeOS on Raspberry Pi – Surveillance Camera System

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Do you want to turn your Raspberry Pi into a surveillance camera system? The best way to do it is using MotionEyeOS. In this post we’ll show you how to get started with MotionEyeOS on your Raspberry Pi.

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Guide to Fingerprint Sensor Module with Arduino (FPM10A)

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This post is an introductory guide on how to use the Fingerprint Sensor Module with the Arduino. We’ll show you how to enroll a new fingerprint ID, and how to find a fingerprint match.

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ESP8266 Wi-Fi Button – DIY Amazon Dash Button Clone

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In this project you’re going to build an ESP8266 Wi-Fi Button that can trigger any home automation event. This is like a remote control that you can take in your pocket or place anywhere that when pressed sends out an email. It can also be called a DIY Amazon Dash Button clone.

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How to Build 8x8x8 LED Cube DIY Kit

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I’ve just finished building my 8x8x8 LED Cube DIY Kit. It was a lot of fun and the cube works perfectly. But assembling all those 512 LEDs and soldering more than a 1,000 joints can be a nightmare if you don’t have the right instructions.

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