Liquids or other objects appear colored because theyreflect or transmit certain colors and in turn swallow (absorb) others. With a so-called photometer, those colors (wavelengths) can be determined, which are absorbed by liquids. The basic principle is simple: with a LED of a certain color you first shine through a cuvette filled with water or
DIY LED-photometer With Arduino for Physics or Chemistry Lessons Continue Reading
If you live with other people or have your own office you might be familiar with the problem of people randomly appearing in your room while you are working on confidential data or just have some weird stuff open on the 2nd Screen from hours ago. Also if you live with other people and you
Pc-Privacy – Arduino Automated Privacy for Your Computer Continue Reading
-This project was conducted as part of the Computational Design and Digital Fabrication seminar in the ITECH masters program.- Know someone overly extroverted and who just can’t stay quiet? This guide will show you how to create an inflatable necklace that chokes the person wearing it whenever he tries to speak… Joking! Let’s not choke
The Cold Shoulder Continue Reading
Digital signage can be useful at events to inform visitors about upcoming panels, changes in the schedule or dynamically provide information. Using LED Matrix displays for that makes the messages readable even from far away and is an eye catching feature. Features include: 2 Lines of dot matrix modules, 1 RGB Ring indicator http web
Mirolo Networked LED Matrix Display for Digital Signage Continue Reading
This tutorial walks through the process of combining Arduino sample sketches to make a working project prototype. Developing the code for your project can be the most intimidating part, especially if you haven’t done it a thousand times already. If you’re a total Arduino newbie, try my free Arduino Class right here on Instructables. Let’s dive
Mash Up Arduino Code Samples Continue Reading
This Arduino project uses an Optical Flow Sensor (ADNS3080) to capture movement. Then translate the data to move servo’s making it look as eyes are following moving object. This is not an easy build. It requires 3d printing, soldering, some general technical understanding and problem solving as this guide cannot be 100% perfect. I will
Motion Follow Animatronics Eyes Continue Reading
This instructable describes how to turn a Commodore 64 computer into a bluetooth keyboard. It involves programming a micro controller with the Arduino IDE and constructing a circuit board. Supplies you’ll need (some are optional): Commodore 64 with keyboard (remove mother board, it is not used) (2) 74HC595 shift registers (8) 1N4148 diodes (3) 220
Turn a Commodore 64 Into an IOS Bluetooth Keyboard Continue Reading
Ordinary digital cameras work by using a large array of light sensors to capture light as it is reflected from an object. In this experiment, I wanted to see whether I could build a backwards camera: instead of having an array of light sensors, I have just a single sensor; but I control each of
Using a LED Matrix As a Scanner Continue Reading
Walking a dog in the dark comes with the safety risk of motorists who don’t see you walking, we’ve had a few close shaves with drivers turning quickly into or backing out of driveways or when crossing road intersections. So why not illuminate your favorite Doggo with a rainbow of colors to get motorists attention
Doggo Walking Light Continue Reading
I´ve been looking into LED Cubes and noticed that most of them were either to complicated or to expensive. After looking at a lot of different cubes, I finally decided that my LED Cube should be: easy and simple to build affordable very stylish and extravagant After having build multiple Arduino LED Cubes, I can
Simple Arduino RGB LED Cube (3x3x3) Continue Reading
