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 an infrared LED. To make the measurements, the fingertip is placed between the photodiode and the LEDs as…
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 composition of the drink and not only will the result be unique, but the cocktail recipe will also…
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, and using an Arduino along with a Trinamic SilentStepStick driver for silent and well-controlled movement. “What I really…
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 inside the handle, which conveniently already had accommodations for three AA batteries. After opening up the handle, I…
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 tiny Pololu motor controllers is enough to get the bot rolling, and a Flysky FS-X6B receiver is onboard so…
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 importantly, argue about different things; she is well-experienced at it. Because that’s the most important function of a…
“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 should be fun. ? Flat bed scanners were found as possibly good target. Compared to most of the…
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 to get started. He hopes by having the main components they had to breadboard together (Arduino, SigFox chip,…
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 a number of different projects over the last few years. These 8×8 LED units have a controller that…
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 to make modifications to the suspension based on the data collected. He decided to use a Pro Mini,…
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 from scratch. His creation, called Uware, takes the form of a 3D-printed enclosure with a tiny 0.49″ OLED screen…
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 of their project right from a single dashboard. All you need to use it is an Arduino account,…
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