This instructable explains how to pinpoint the location of an object using an Arduino, two ultrasonic sensors, and Heron’s formula for triangles. There are no moving parts. Heron’s formula a... Read more
This was my project for Hack Sioux Falls. I built it one weekend and it turned out a lot different than I thought it would. It was a lot of fun and there are a lot of variations on what you... Read more
We’re used to Hall effect devices as proximity sensors in mechanical systems, used to provide detection of something that has a magnet attached to it. However it’s easy to forget that the de... Read more
While early scientists and inventors famously underestimated the value of radar, through the lens of history we can see how useful it became. Even though radar uses electromagnetic waves to... Read more
People in the western world spend a lot of time sitting. At the desk, driving around, watching TV and more. Sometimes, sitting too much can harm your body and harm your focusing abilities. W... Read more
Weather stations are interesting projects for beginners and very useful for expert makers. They are usually quite simple to build but also provide fairly accurate and useful weather data. We... Read more
Let’s learn to sense movement in a room with a PIR motion sensor and Arduino’s digital input. We’ll connect up a circuit using a breadboard and use some simple Arduino code... Read more
Let’s learn how to read a photoresistor, a light-sensitive type of variable resistor, using Arduino’s Analog Input. It’s also called an LDR (light-dependent resistor). So f... Read more
Arduino has never ceased to impress everyone, and recently have launched the Beta version of their IoT cloud that brings in more awesomeness. The beta version brings autonomy to the Arduino... Read more
Remember the “smart” LED candle from a few months ago? Well, the idea was nice, but the overall execution lacked some oomph. Technologically and aesthetically speaking... Read more
We’ve all got projects kicking around that we haven’t had time to document for our own purposes, let alone expose to the blinding light of the Internet. There are only so many hours in a day... Read more
In this project, you will turn the Arduino into a thermometer! Use a temperature sensor to measure your skin temperature, and register the output with three LEDs. Even though the Arduino is... Read more