Instead of using keys and codes for security this device that Ankur Thakkar, Darshan Shah and Saisrinivasan Mohankumar built as part of their ece4760 Final Project uses gestures to grant access. The system uses IR sensors to determine the movement of a persons hand within the detection area, after you train the unlock pattern you can simply repeat the pattern to activate the device. I think a small miniature
Z LeHericy shows us how he used a WickedLasers Spyder Arctic 3 laser to do some laser etching. This hand held laser is very powerful at 2 watts but it isn’t much compared to real laser etching machines such as the one that was used to make the etched orange, this one for example is 60 watts. The result of the leather etching is quite nice but I am
Check out the Electric Scooter MK-1 Build Log, Dane from transistor-man.com has done some cold weather testing and it looks like it works quite well! “The electrical layout for the MK 1 scooter is fairly straightforward. Everything starts from the 12S 4p cylindrical battery module. A Cooper Bussman 120A circuit breaker sits between the battery and the rest of the scooter. Note that, while there are a number of
This Infrared Eye-Tracking Computer Mouse uses some interesting methods of creating a eye controlled computer mouse. The intent is the you would be able to ditch the desk mouse and simply put on a pair of glasses. The system would be a self contained battery operated system that doesn’t have you tethered to your computer with a cable. “We have a pair of 3-D printed glasses with plastic lenses.
Parallax just completed their Hack the Halls Contest. Ben Kenobi made a project called How the Grinch Stole Christmas, the user aims a laser at a Christmas scene and shoots things up. Sensors detect if a hit was made and gives the player some feedback. Looks like fun! “Materials – I picked up a few cheap Christmas decorations at the dollar store and walmart as well as cotton balls,
This spinning motor makes for a great Christmas tree decoration, best of all it doesn’t need to be plugged in. The creator is hoping for a 100 year run time! Not sure if it will last that long since most batteries have an internal discharge rate that will kill it in a handful of years without powering anything but this motor is running from home made Crystal Cells. The
In this project by Ben Harben an Arduino monitors some motion sensors which will activate as people walk by some trees on the sidewalk. The Arduino plays a tune using the Wave Shield and lights the appropriate tree using a power switch tail. It looks and works great, hopefully there aren’t any mischievous kids in the area who want some free electronic parts!
