Monday, September 28, 2009

AR -media -Inglobe Technologies

I found a lot of apps. at AR-media site. I liked the one where you could create 3D models with Google sketch up and view them real time via AR plugins.


Link:
http://www.inglobetechnologies.com/en/projects.php

Video:



Cynergy Labs: Project Maestro

This is an extension of Johnny chung lee's wii hack...


Video:

Total Immersion - Demo 2007

Augmented Reality GIS Maps

ARhrrrr on NVidia Tegra - Georgia Tech & SCAD Atlanta

The Future is Wild by T-Immersion

Another AR application


Link:
http://fiw.t-immersion.com/

Nissan Cube Augmented reality brochures

Here is Augmented reality to your doorstep. Just download the application and print the brochure.
Hold it in front of the webcam and enjoy !!

Link:
http://nissan.t-immersion.com/

Video:

Johnny Chung Lee

I think the name says it all. His wiimote hack proved a thing or two about household hacks. 
Just go ahead and watch his video.


Johnny Lee-
Links:
http://johnnylee.net/
http://www.ted.com/talks/johnny_lee_demos_wii_remote_hacks.html


Video:








Wiimote Trials

This is one method by which i connected Wiimote to PC using Bluetooth. All you need is a bluetooth dongle,a software like- Blue Soleil and of course a Wiimote!
You can find BlueSoleil (trial version) here (*Note: BlueSoleil SDK is also available!! )-
Link:
http://www.bluesoleil.com/download/Default.aspx
 Those of you who want to go further and explore various possibilities of wiimote, here is are some essentials: Some of the APIs are available in the Google code link below. Also follow the second link to find codes suitable to you.
Link:
http://code.google.com/p/wiimote-api/downloads/list
http://dundee.cs.queensu.ca/wiki/index.php/Wiimote_API's


Ill put up few more interesting Wii hacks!!


Images:









AVR ISP Programmer

Here is a simple programmer for Atmel AVR Microcontroller which i built. All it requires is a Tristate bi-directional buffer [74 245] and a programming software like PonyProg or AVRDude.


Here are the links: Various Programmers 6-pin ISP and 10-pin ISP
http://www.ladyada.net/make/usbtinyisp/
http://electronics-diy.com/avr_programmer.php
http://blog.savel.org/2007/03/24/ispdownload-cable/
http://www.scienceprog.com/avr-isp/
http://www.kmitl.ac.th/~kswichit/IspPgm30a/ISP-Pgm30a.html


PonyProg:
http://www.lancos.com/prog.html


AVR Dude
http://savannah.nongnu.org/projects/avrdude/


Images:












Wednesday, September 16, 2009

8x8 LED Matrix on Development Board

I found this interesting LED matrix where all sorts of experiments can be done. Here is demo where i switch between the LEDs one by one. The operation of these is explained in the sites below.


Link:
http://www.lcdinterfacing.info/Dot-Matrix-Display.php
http://www.8051projects.net/lcd-interfacing/lcd-programming.php


The LED matrix used in the demo is Bi-color Matrix with Red and Green.
Pin-outs:
*Pin-outs may vary. Hence check all pins by toggling 3V (say, Button Cell) among all possible combinations.
*NEVER USE 5V directly to any LED or the LEDs will burn out. ALWAYS Use 5V in series with 680 Ohm or 1k Ohm.


The pins below are the ground pins and on the left are for Enable:
Red pins- Red LED anode
Black pins- Red LED cathode
Green pins- Green LED anode
Blue pins- Green LED cathode




My Video:








Thursday, September 10, 2009

7-segment Display on Development board

Here is video where i run the &-seg display via a 8051 controller.
The controller sends BCD to 7447 which inturn displays it on the 7-Seg.

Video:

Monday, September 7, 2009

uC Development Board








The 7 segment displays are Common Anode configuration. The 7-Seg can be directly accessed or can be triggered by BCD input given to IC 7447 [BCD to 7-Seg Driver].
Apart from this all other extra features can be added to suit your applications.
I used M-seal to stick all the circuits on to the board. Looks messybut better than to drill holes for each board and screw them and keeps the other side smooth!!
I completed this 18 months ago and took me 4 days to complete and cost me around
Rs.700.

Videos:

Images: