Recently Gesture controlled Laptops or computers are getting very famous. This technique is called Leap motion which enables us to control certain functions on our computer/Laptop by simply waving our hand in front of it. It is very cool and fun to do it, but these laptops are really priced very high. So in this […]
Control your Computer with Hand Gestures using Arduino Continue Reading
Have you ever found yourself running out of pins to read an array of analog sensors? Don’t worry, you’re not alone, it happens to the best of us, and there is something you can do about it. An analog / digital multiplexer like the CD74HC4067 (mux for short) can help multiply the amount of pins
Muxing Around With The CD74HC4067 + Arduino Continue Reading
For my first instructable, I’d like to present The Parking Spotter. This is not a new concept, I know. However, this build was done specifically to suit my needs/wants/materials already in my possession. Typically, a project begins with an idea, parts are then gathered, and the building commences. In my case I looked around at
Arduino Ultrasonic Parking Spotter Continue Reading
So I mentioned in an earlier Instructable that I am a teaching assistant (TA) for an introductory engineering course for biomedical engineering majors at Vanderbilt University. My main task as a TA is to re-write a few laboratory exercises that the students will be performed during the class. One of the laboratory exercises was to
DIY Arduino Pulse Sensor Continue Reading
Pyroelectric (“Passive”) InfraRed sensors: ”’What is a PIR sensor?”’ PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don’t wear out. For that reason they are commonly found in appliances and
PIR Motion Sensor Tutorial using arduino Continue Reading
Yes, this is more or less your average touchpad that one can find from inside a laptop. This model, like majority of touchpads out there operates with PS/2 standard. This means that it can be directly plugged in to a PS/2 connector and with proper drivers, function as a mouse. As it happens the PS/2
Arduino + Laptop Touchpad using arduino Continue Reading
RCtime is a function for the Arduino that finds its roots in Basic-based micro controller programming languages (such as the Basic Stamp). This function basically counts the amount of time it takes to charge a capacitor through a resistor and returns a digital value. In some sense, it is a simple hack for analog to
Arduino Basics: RCtime using arduino Continue Reading
John has been working to recover components from old power supplies and available trash electronics, in order to build controllers to power stepper motors and other mechanisms for the FabLab. Intro The Arduino microcontroller board is able to supply a current of 40mA from its output connections. These digital outputs are fixed at 5V “ON”
Controllers and Sensors using arduino Continue Reading
Overview In the first serial lab, you sent data from one sensor to a personal computer. In this lab, you’ll send data from multiple sensors to a program on a personal computer. You’ll use the data from the sensors to create a pointing-and-selecting device (i.e. a mouse). (:toc Table of Contents:) Connect the sensors Connect
Serial Duplex using an Arduino Continue Reading
About 2 years ago I picked up a ADJD-S371 color sensor from Sparkfun to work with my arduino. I spent a few days getting it to work, but finally got it going pretty well. I still get a few emails here and there asking for help with it. So I figured I would start bildr’s
Sensing color with the ADJD-S371 + Arduino Continue Reading
