This is a radar, designed to detect the distance and direction an object is from the ultrasonic sensor. With the ultrasonic sensor connected to a servo, it has the ability to rotate 180 degress, similar to a radar utilised to detect the position of planes. As the radar wasn’t my original idea, I have also […]
How to Make an Arduino Radar Continue Reading
Makers, developers and electronic enthusiasts looking for a way to add a digital smell detector, sensor and nose to their project may be interested in a new piece of hardware called the Smell Inspector, designed by SmartNanotubes Technologies based in Germany. The Smell Inspector takes the form of a developers kit and ready to use electronic
Smell Inspector digital nose developer kit Continue Reading
This Halloween my son Max, came up with the idea to drop a spider on anyone who tries to ring our doorbell… I immediately jumped on the idea and we started to work on it. Using a simple ultrasonic distance sensor (HC-SR04) and a servo connected to an arduino we made this project in about
Dropping Spider on Doorbell – Halloween Scare Prank Continue Reading
Calculating on paper is never an easy job. And when it comes to formulas with sub-formulas of their own, it is nothing short of a nightmare! Take the case of a simple pendulum, which has a variable with a formula of its own. What if there was a way to replace these scary calculations with
Measuring Time Period of a Pendulum Using IR Sensor Continue Reading
Bored of keeping track of countless locks and their keys? How about using your own fingerprint to unlock each and every safe in your house, just like your Smartphone? Sounds cool, right? Let’s make an electronic Fingerprint locker that will keep all your secrets a secret from your enemies. And not only one, but up
DIY Electronic Locker Using Fingerprint Sensor Continue Reading
Let’s measure distances with an ultrasonic rangefinder (distance sensor) and Arduino’s digital input. We’ll connect up a circuit using a breadboard and use some simple Arduino code to control a single LED. You may have already learned to read a pushbutton and PIR motion sensor with Arduino’s digital input, and we’ll build on those skills in this lesson. Ultrasonic
Ultrasonic Distance Sensor in Arduino With Tinkercad Continue Reading
In this project I will show you how I combined an Arduino Nano, a current sensor, an LCD, a rotary encoder and a couple of other complementary components in order to create an adjustable constant load. It features a constant current and power mode and can handle a maximum of 30V and 20A if your
DIY Adjustable Constant Load (Current & Power) Continue Reading
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 there was a lot to improve. First off, as an artist, I wanted the container for the candle to look amazing. Or at least better than the old cardboard box I
*IMPROVED* Smart LED Candle: Reactive to Sound and Aesthetically Pleasing Continue Reading
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, and let’s face it, building the thing is a lot more fun than taking pictures of it. It took
KEEP COOL WITH THIS OPEN SOURCE AVR FAN CONTROLLER Continue Reading
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 far you’ve already learned to control LEDs with Arduino’s analog output, and to read a potentiometer, which is another type of variable resistor, so we’ll build on those skills in this lesson.
Light Sensor (Photoresistor) With Arduino in Tinkercad Continue Reading
