Posted January 8, 2012 by Chris

“A Digital Voltmeter (DVM) is one of the first things you need if you’re building electronics projects. Most of us have one. But what if you need more than one? Enter the Arduino. If you have an Arduino that can drive an LCD, you’ve got a multi-channel voltmeter!”

Posted January 7, 2012 by Chris

“The protocol is very simple between OpenCV and Arduino: the program transmits one integer per line through the serial connection (using the USB connection or a RS232 port). Each integers gives the position (in microseconds) to where the servo should move.”

Posted January 6, 2012 by Chris

“The main goals of this project was to learn Verilog, to learn about buses and to create a platform for future projects which require the parallelism and/or exact timing of an FPGA combined with the ease of programming of a general purpose PC. An example of a future project is a programmable function generator. At the command of an application running on the PC, the FPGA can generate square waves or PWM signals to feed into a device under test.”

Posted January 5, 2012 by Chris

“Using an ATmega 2560 and therefore the heart of Arduino, we have developed a remote control with GSM. This allows to control 2IN/2OUT, DTMF key, gate control and GSM thermostat activated remotely. The control is simple to use, thanks to the availability of several libraries that allow you to do anything to the Arduino; if there is not really a specific library, you can modify an existing one.”

Posted January 4, 2012 by Chris

“A simple Atmel microcontroller runs the high-level state machine that integrates simple sensor data and dictates behaviour of the motors and latches. Simple electrical relays (right side) act between the microcontroller and high-power electromechanical components.”

Posted January 3, 2012 by Chris

“The final Micro-controller I decided to use on the final product was a ATMEGA8. In the first post I used an ATMEGA8515. For several reasons I decided not to use this one in the final product. Firstly, it’s a 40 pin package. I do not need that many I/O lines. It draws more power. And finally, I need that one for my studies at uni. So an ATMEGA8 was used.”

Posted January 2, 2012 by Chris

“Photographers want total control of all aspects of a camera such as exposure, shutter speed and aperture size. However, some breathtaking pictures require the photographer to be separated from the camera, and thus there is a need for remote access and currently such commercial solutions are very limited.”

Posted January 1, 2012 by Chris

“An RFID reader is a device which is used to communicate with RFID tags by receiving and transmitting signals. These signals use radio waves for wireless communication. RFID tag is applied to products, individuals or animals to identify and track them. The identification is done through a unique serial number. This topic covers the interfacing of a passive RFID system with AT89C51.”

Posted December 31, 2011 by Chris

Happy New Year 2012

Posted December 30, 2011 by Chris

“For our final project, we designed and built an RFID-based proximity security system for use with Cornell Identification cards, which have been RFID-embedded since fall of 2003. The idea for this project was sort of spawned from our general interest in RFID technologies and the near-simultaneous occurance of Lab 2 and the antiquated lock system at our fraternity house breaking.”