Grumpy Hedgehog is a device that allows you to interact with electronic devices through movements. We can easily create our own movements and patterns to transmit actions through different communication channels (USB HID, Wifi, IR …) or...

In this project we will show you how to build your home emergency light. The idea of the following circuit is that it must be compact and may be kept plugged into the mains socket for a...

When you test a new electronic circuit or new hardware design it’s useful to check if the components on the board are overheating abnormally. If something goes wrong (which can happen on the first try) these components...

In this project we will see how to make a low cost smart mirror from readily available parts. It all relies on the use of a regular picture frame, and mirrored window film to turn the glass...

Home security systems are a growing field of projects. A self-built system is not only generally less expensive than a professional installation, it also allows total control and customization to suit your needs. With the introduction of...

Roni Bandini is a writer born in the seventies, obviously he likes paper books but after many years of using a Kindle he has become accustomed to some features that he doesn’t want to lose. What features?...

In this project we will explain how to make a POV clock in an easy way. POV stands for persistence of vision. It is a kind of optical illusion in which a visual image seems to persist...

Who likes a weak WiFi signal? We can extend or improve our WiFi signal in the office or at home using specific products, but these need to be placed in precise points for optimal performance. You can...

In this tutorial we will learn how to register fingerprints and then read them with the biometric sensor and activate a lock. The sensor works with the serial protocol, so it can be used with any microcontroller...

When we use the soldering iron we should avoid breathing the smoke that is created by heating the material, especially if we do it daily or if we use a lead-based solder. And so, in defense of...

In this project we will see how to create a 3D printed CNC machine. It’s just a prototype, but once it’s built you will surely be able to build a larger, more accurate one. The principle will...

In this project we will see what Tesla coils (TC) are, how they work, a couple of variations and also how to build one in solid state (SSTC) whose purpose is to play music! The image below...

In this project we will see how to build a heart rate detection system, we use a pulse sensor and an OLED display, all controlled by an Arduino Nano. The sensor detects the person heartbeat and converts...

Build a digital soldering station that allows you to perfectly adjust the temperature of the Hakko 907 soldering iron thanks to a PID system. When the system detects that the iron tip temperature is lower than the...

The home security camera does a good job, but it may not work in complete darkness. You also don’t want your gadget to trigger a false alarm if it detects, for example, a cat. In this project...

The project consists of an automatic transistor tester, which allows you to identify the pinout and characteristics of various discrete semiconductors (NPN, PNP, MOSFET transistors, etc.). It is also capable of measuring resistors, capacitors, inductances and diodes....

The project consists of a car and a Bluetooth remote controller that allows you to control the movement and speed of the car through the tilt angle (similar to a Nintendo Wii remote). The microcontroller receives acceleration...

An Escape Room is a logic game in which the competitors, once locked up in a themed room, have to look for a way out using every element of the structure and solving codes, puzzles, puzzles and...