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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!

How To Use App Inventor With Arduino

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Note: This post is outdated. For a recent version see Getting Started with MIT App Inventor 2 and Arduino. This project’s source file for the android app is outdated, because it was built using the old MIT APP Inventor Classic software, that is no longer supported. However, this project still works if you convert the files […]

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Arduino – LED Cube 3x3x3

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In this tutorial I’ll show how you can create your own LED Cube 3x3x3. I’m sure you already saw some similar projects to this one but you never took action and made your own. Now it’s time to make your own!

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Circuits – How to Fix your Earphones

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Today I’ve decided to share how to fix your earphones when they get a short circuit. This happens once in a while so I’ve thought this could be useful the next time this happens to you. This tutorial will be a bit different, It’s a step by step video. I hope you enjoy.

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Circuits – How to identify PNP and NPN Transistors (with a Simple Circuit)

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In this project I’ll make one of the easiest PNP and NPN circuit identifier on earth. You’ll see how easy It is to make one! I’ve also made a post to help you learn more about the Transistors theory. (I highly recommend you to read it first).

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Circuits – PNP and NPN Transistors

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I’ve decided to write this post to support a bit of the theory behind my new project that identifies the PNP and NPN transistors easily. (you should see my project after reading this post)

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Review – Self-Adjusting Wire Stripper

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That’s my new self-adjusting Wire stripper! Cost me around 16 euros (about 21 dollars). And It’s simply just awesome for anyone who needs to strip wires all the time! 

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News – Maker Faire Rome

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Hi, this is just an article I’ve decided to share with you guys!

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Arduino – Temperature Displayed on 4 Digit 7 segment (common anode)

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In this project I’ll display the temperature in a 4 digit 7 segment display (common anode).

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Circuits – 7 Segment Displays

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I’ve decided to write this post to support a bit of the theory behind my new project (click here to see) in which I’ve used a 7 segment 4 digit display (Common anode).

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Reviews – HC-05 Bluetooth Module

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The HC-05 Bluetooth module is the most economical and easiest way to go wireless (via Bluetooth).

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Arduino – Control DC Motor via Bluetooth

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In this project we will control a DC motor with a smartphone via bluetooth. This project is great to learn more about:

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Tools – CircuitLab

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Today I’ve decided to talk about the CircuitLab.com. This a circuits simulator which you can run in your browser, you can build your schematics in the editor mode and simulate your circuit.

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Arduino – Shrink your Arduino project

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Sometimes when we’re making some projects with our Arduino and we want to make them permanent It would be a waste to use an Atmega328 chip with so many pins if we’re just using a few.

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Circuits – 5$ Fan for Soldering Station

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Today I’ll show how you can control a PC fan with a simple circuit that I’ve created this is the easiest way I’ve thought that this could be done.

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