Random Nerd Tutorials
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4 Hot Glue Tricks for Your Electronics Projects

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Hot glue is great. It is very handy for a wide variety of applications if you want make something stick together. Here’s 4 tricks about hot glue that may be useful in your electronics projects and beyond.

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$10 DIY WiFi RGB LED Mood Light with ESP8266 (Step by Step)

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In this project, I’ll show you how you can build your own mood light. You’ll use an ESP8266 to remotely control the color of your light using your smartphone or any other device that has a browser. This project is called $10 DIY WiFi RGB LED Mood Light.

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Electronics Basics – How a Potentiometer Works

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A potentiometer, also referred to as pot, may come in a wide variety of shapes and are used in many applications in your daily life, for example to control the audio volume of the radio. A pot is a manually adjustable variable resistor with three terminals.

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ESP8266 DS18B20 Temperature Sensor Web Server with Arduino IDE

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In this project you’ll create a standalone web server with an ESP8266 that displays the temperature with a DS18B20 temperature sensor. Recommended Resources:

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Guide for DS18B20 Temperature Sensor with Arduino

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In this guide I’ll show you how to read the temperature with the DS18B20 temperature sensor with the Arduino board. The DS18B20 Temperature Sensor The DS18B20 temperature sensor is a 1-wire digital temperature sensor. This means that you can read the temperature with a very simple circuit setup. It communicates on common bus, which means that you […]

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Electronics For Beginners

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This eBook is our step-by-step guide designed to help you get started with electronics. Electronics For Beginners lays out the essentials of electricity with practical examples. Learn about electronics components and how to read and build circuits. You will also use the 555 timer integrated circuit, learn how to use a multimeter and tips about soldering.

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Guide for 8×8 Dot Matrix MAX7219 with Arduino + Pong Game

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The dot matrix that we’re going to use in this guide is a 8×8 matrix which means that it has 8 columns and 8 rows, so it contains a total of 64 LEDs. The MAX7219 chip makes it easier to control the dot matrix, by just using 3 digital pins of the Arduino board. I think the […]

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7 Arduino Compatible Displays for Your Electronic Projects

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The Arduino board has a wide variety of compatible displays that you can use in your electronic projects. In most projects, it’s very useful to give the user some sort of feedback from the Arduino. Whether it’s a sensor reading, an ok message or to create an interface to interact with your Arduino board. There are several types of displays compatible […]

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Guide for Rain Sensor FC-37 or YL-83 with Arduino

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The rain sensor is used to detect water and it can detect beyond of what a humidity sensor do. The FC-37 rain sensor (or other versions like YL-83) is set up by two pieces: the electronic board (at the left) and the collector board (at the right) that collects the water drops

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Guide for Soil Moisture Sensor YL-69 or HL-69 with Arduino

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The soil moisture sensor or the hygrometer is usually used to detect the humidity of the soil. So, it is perfect to build an automatic watering system or to monitor the soil moisture of your plants.

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ESP8266 DHT11/DHT22 Temperature and Humidity Web Server with Arduino IDE

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In this project you’ll create a standalone web server with an ESP8266 that displays the temperature and humidity with a DHT11 or DHT22 sensor.

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9 Home Automation Open-Source Platforms for Your projects

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In this post, I will share with you a list of 9 home automation open-source platforms for your projects. Home automation can include the scheduling and automatic operation of lighting, heating, air conditioning, window blinds, security systems and more. Home automation may also allow vital home functions to be controlled remotely from anywhere in the world […]

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Build a Home Automation System for $100

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Build a Home Automation System for $100 Learn Raspberry Pi, ESP8266, Arduino and Node-RED. This is a premium step-by-step course to get you building real world home automation system using open-source hardware and software.

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Electronics Basics – How a Transistor Works

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Transistors are semiconductor devices with three terminals that can act as amplifier controls or electrically controlled switches.

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