The oximeter is a tool that allows you to calculate the percentage of oxygen saturation in the blood based on the amount of light absorbed. It consists of a photodiode and two LEDs: a red LED and...

This robot translates Twitter activity into Cocktails of different flavors. When you want a cocktail, the machine will search for the latest five messages around the world mentioning one of the available ingredients. These messages define the...

If you wear a self-winding watch, I’m sure you’re aware that watch winders are generally very expensive, or cheap and noisy. So Kristopher Marciniak decided to hack an inexpensive winder replacing the stock motor with a stepper,...

Inspired by a Star Trek Tricorder, the maker has converted a handheld gyroscopic toy into an original handheld Arduino controlled heart rate monitor. The device consists of an Arduino Pro Mini with a pulse sensor and an OLED display stuffed...

Starting from an existing design from a 2013 research done at UC Berkeley, this Arduino-powered bot created by Ali Aslam is built entirely from printed parts and off the shelf hardware. An Arduino Pro Mini combined with...

If you ever find yourself needing someone to talk to and can’t find a confidant then the Eve chatbot by Debashish Buragohain will happily fill in. “With her, You can share your experiences, your feelings and most...

“Plenty of DIY PCB UV exposure tool building posts are available on the internet with total different approaches. I also designed my own, to fulfill my needs: it should be relative small and portable and the hacking/modding...

Creating a new IoT device from idea to prototype to final product is not as easy as it can be made out to be. Scott Tattersall has created the Siguino to make it easier for anyone else...

Whether you’re interested in enhancing model trains, or simply want to hear more about integrating LED matrix displays into your next project, here you have some information you might find interesting. “I have used LED matrix displays for...

William Osman set out to prove that unlike expensive commercial data logging rigs, he could get the same results for under twenty bucks. He wanted to build a wireless three-axis accelerometer for a race car project, allowing engineers...

Instructables author Daniel Quintana loves mountain biking, but after having to interrupt a ride to continuously check the time, he did what any normal maker would do in this situation: he created his own Google Glass-like headset...

The new Arduino Create Chrome App enables students and other users to write code, access tutorials, configure boards, and share projects. Designed to provide a continuous workflow from inspiration to implementation, Makers can easily manage every aspect...

POV Displays move through the air at a high enough speed to trick your eyes into thinking that a sequence of flashing lights is actually a solid image. Though interesting enough in two dimensions, LED Instructable maker “Gelstronic”...

The robot, which will cost about $80 in parts, uses two stepper motors for greater movement precision than could be had with normal DC models. Regular DC motors can have mechanical friction and electric resistance differences. This...

Have you ever dreamed of your own dancing teapot, just like in the movie Beauty and the Beast? All thanks to micro-computing and Arduino Pro Mini, you can actually create your personal 3D printed robotic dancing teapot....

How many people have the original Game Boy yet, in a drawer somewhere? I’m one of them, I still have my perfectly good and unused Game Boy. Someone else decided to give a new life to his...

The Vinduino project (Vineyard + Arduino) started out of necessity to better manage irrigation in Southern California vineyard and reduce agricultural water consumption by 25% (25% of 42 million acre feet/year is more than the annual urban water...

Mouser has announced a global distribution agreement with SparkFun Electronics, as part of both companies’ commitment to support the growth of the maker movement around the world. Mouser’s catalog now incorporates over 500 SparkFun products, including their...