 For this Cornell ECE 5760 Hand Tracking Pong project Hanting Lu and Kedari Elety have connected a camera to an FPGA, the image is down sampled so that it is only looking at a 40 X 30 image to determine how the players are moving. “The NTSC video signal from the camera is stored in the SDRAM at the rate of the TV Decoder Line clock (TD_CLK). Data
Jiayuan Wang and Sheng Zhang from Cornell University built this Wireless Voice-Controllable Smart Home Project for their ECE 4760 Final Project. “There are two CPU in our project, ATmega328 and ATmega1284. We set up the wireless communication by two Xbee chips. One of them connects with ATmega328 working as the transmitter to transmit the signal, another one is connected with ATmega1284 to be the receiver. We pick up ATmega328
 Check out this cool 3D Printed Stepper Motor that Christopher Hawkins made. You can see in the video that it can move quite quickly and not loose any steps. This design would be idea to teach how stepper motors work. Via: Hack a Day “This is a programmable stepper motor and driver that I made out of some nails, magnet wire, neodymium magnets, a digispark microcontroller, and a 3D
Jon Wise demonstrates his Raspberry Pi 3D Printer, he is using a pen in the demo but it can use an extrude to print items. The mechanical movements leek very complex when compared to a standard XY table that is controlled using 2 stepper motors. The Pi has enough number crunching ability to get the job done though. I can’t wait to see this printing a complex shape, the
These Rave Shade – LED Glasses look like a ton of fun. They are Arduino based and use 74HC595 shift registers to light all the LEDs. At first I though it was a silly design since with a PCB sitting on your face you would not be able to see anything. But later I saw the small circles that are cut into the board which allows you to presumable see
Want to annoy IronJungle? Tweet a bunch of commands to his Twitter Robot Hand! His hand is monitoring the Twitter stream using a Raspberry PI and will act on your commands (seen below).  “A Raspberry PI monitors the tweets to @OurCatDoor. The PI’s GPIO acts as inputs to a PICAXE 18M2 which controls five servos on a robot hand. You can control the “The Hand of PI” by sending
 It sucks when you have a perfectly good piece of hardware that mechanically functions but the controller dies. This is exactly what happened to Davide Gironi from Milan Italia when his dehumidifier stop working. Instead of placing it next to the curb for garbage pickup he investigated what the issue was. Turns out the humidity switch was no longer working. He installed an AVR Atmega8 microcontroller system that
