Introduction We designed a multi-zone fire alarm system with a VT100-compatible user interface. The system is microprocessor controlled using the Mega32 microprocessor. The system communicates to the VT100-compatible user interface via a RS232 connection. A fire is detectable by a number of fire detection devices in each of as many as eight zones. High-level Design […]
Multi-Zone Fire Alarm System Using Mega32 Microprocessor Read More »
Easy Input is a head-controlled keyboard and mouse input device for disabled users. The system uses accelerometers to detect the user’s head tilt in order to direct mouse movement on the monitor. The clicking of the mouse is activated by the user’s eye blinking through a reflective sensor. The keyboard function is implemented by allowing
Head-Controlled Keyboard And Mouse using ATmega32 Read More »
Introduction A polygraph (often and incorrectly called a ‘lie detector’) is a machine which plots in real time several human biological signals such as pulse rate, galvanic skin resistance (GSR), blood pressure, and breathing rate. This machine, in conjunction with a certified examiner, is then used to analyze a subject’s stress during interrogation with the
DIY Polygraph Mask using ATmega32 Read More »
I. Introduction This project is a portable battery-powered video game based on the 1984 cult classic PC game “Rogue”. I designed a hardware-based roguelike video game because I am a long-time Rogue addict and thought it would be cool to make a portable plug-and-play imitation. The project involved some basic hardware setup, including a Sega
A Portable Battery-Powered Roguelike Video Game using ATmega32 Read More »
New version released ! V2.45 (Check version list for details) This construction is based on HappyJTAG Idea, to implement JTAG interface into target avr system and debug it remotly via USB, without specific JTAGICE hardware. All job is done by PC softraware. HappyJTAG version is easy , but not powerfull enough.There is barriere with performance,
HappyJTAG2 – JTAG AND SPI AVR8 interface using ATmega32 Read More »
Overview Here at the Transistor, we love the Arduino platform, so we decided to make our own Arduino Clone. The Minimalist Arduino is designed for use in permanent or custom circuits on solderless breadboards, stripboard, or custom PCBs. It contains only the bare minimum parts required for building the Arduino platform. The schematic for the
Minimalist Arduino using ATMega328P microcontroller Read More »
AVR SED1520 Library This is a C-library for avr-gcc/avr-libc to access SED1520-based graphics-LCDs. The modules used to develop the library only support “write to LCD”, read-modify- write on the display RAM is not possible. So this Library uses a “framebuffer” which holds the display-content in the AVR’s SRAM. For a 122*32 pixel display around 500
Interfacing Atmel AVR with Graphics Liquid Crystal Displays using ATmega32 Read More »
I. Introduction The Cornell University Airmouse Initiative is a motion sensing glove with buttons on it that plugs into your computer to function as a mouse. Many tasks that are performed on the computer require the use of both a keyboard on the mouse, and many people find it frustrating and awkward to have to
Air-Mouse using ATmega32 microcontroller Read More »
Introduction We have created a real-time, multithreaded, preemptive operating system called kaOS for the Atmel Mega32 microcontroller, which loads and executes programs from a Secure Digital or MMC card.We wrote this OS and created the SD/MMC card reader as a final project for Cornell’s ECE 476 class taught by Professor Bruce Land. Our reason for
kaOS operating system and loader using ATmega32 Read More »
Introduction and Motivations: For our final project, we designed and built (and exhaustively tested) 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
RFID security system using ATmega32 microcontroller Read More »
