Protect your secret hideout from intruders with a lock that will only open when it hears the secret knock. This started out as a bit of a joke project, but turned out to be surprisingly accurate at judging knocks. If the precision is turned all the way up it can even detect people apart, even if […]
Secret Knock Detecting Door Lock Using Atmega Read More »
This portable security system is built based on Atmega644 microcontroller. It can detect intruders based on their physical presence. The system uses URM37v3.2 ultrasonic sensor which is connected to MCU through rs232 serial communication. To rotate sensor for wide coverage range, the system is equipped with Parallax servomotor. For user interface, there are LCD and keypad wired to PORTC
Ultrasonic Security System using Atmega644 microcontroller Read More »
The Lord of the Keys is password managing system that able to store many usernames and passwords inside a Java Card™ smart card (one of the most secure methods to store confidential information). Whenever a dialog box appears in an application or web browser requesting a username and password, these security features can be found on the externally attached device, which
Handy Password Managing System, Lord of the Keys using AVR ATmega168 Read More »
The Security Keypad Lock Project is a basic access control system based on ATtiny2313. It can be modified to protect just about anything. The “Code Lock” ability will allow the rightful user to deploy the platform to any property that requires simple password-protection. The “AVR” RISC microcontroller used ensures low costs. Possible applications may include: vehicle protection, electronic
AVR Security Keypad Lock using ATtiny2313 microcontroller Read More »
Microcontroller Microcontroller ‘s (MCU) is a kind of CPU (CPU) can be seen as. MIB MCUs from slower and less capable of addressing memory, but they are designed for the implementation of real-time control problems both cheaper and easier to use. The major difference between CPU and MCU are required to use external hardware. MCU, almost every time,
About Atmel and Combination Lock Application using AT90S2313 microcontroller Read More »
MMC/SD/SDHC card library This project provides a general purpose library which implements read and write support for MMC, SD and SDHC memory cards. It includes low-level MMC, SD and SDHC read/write routines partition table support a simple FAT16/FAT32 read/write implementation The circuit The circuit which was mainly used during development consists of an Atmel AVR
MMC/SD/SDHC AVR Interface using ATMega8 microcontroller Read More »
Overview The circuit shown in Figure 1 is capable of driving an LED array requiring up to several amps with a burst of flashes before coming on until power is removed. It is intended to be used as an auxiliary warning light driver. The initial burst of flashes is meant to enhance visual detection of
Attention-Getting Auxiliary Warning Light Flasher/Driver Using Atmega Read More »
An ATtiny12 controller as a timer and some switching circuitry turns the doorbell off for 10 hours at the same time each day. The string of resistors across the top of the board are series connected to make a 728 Ohm 2 watt resistor. The slide switch is used to switch the circuit between the
Door Chime Privacy Sentry using Attiny12 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 »
Introduction The design philosophy behind the JI1000 is a simple, yet powerful microcontroller based mobile security system. At the heart of the JI1000 is the Atmel AT90S4414 8-bit RISC microcontroller. We used the 4414 for this design because a microcontroller is well-suited for a security system. The basic control functions for our system include monitoring
Clifford Systems JI1000 Car Alarm System Using Atmega Read More »
