Circuit Lake

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This vehicle security system built using Atmel’s Atmega8 AVR microcontroller, Analog Device’s low cost acceleration sensor ADXL311JE and Dallas semiconductor’s DS1973 iButton. The circuit powered by small battery power supply which is integrated with the unit.

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This laser tripwire project allows you to twittering and grab an image from a webcam or execute any command in a bash script when someone crossing the tripwire. The project construction is simple, you just need to position Laser pointer and LDR in a fixed position, then bounce the laser to the LDR with [...]

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This AVR AT90S2313 based project modifies a home’s existing doorbell to become a hidden keyless entry system. The doorbell will operate normally unless a secret code is entered via the doorbell button. When the secret code is entered, the doorbell does not ring and the garage door is opened.

This credit card transaction system with RSA encryption project powered by microcontroller AVR AT90S4414. It takes credit card input from the terminal and sends it to the server controller, which buffers it, and outputs it to the server PC monitor when necessary or requested. The hardware project consists of two Atmel AT90S4414 controllers (client and [...]

CodeLock is AVR based electronic combination lock. This security system use microcontroller AT90S2313 or ATtiny2313 as main chip. If the code is entered in the correct sequence, then after 1 second the relay and the electric striker (in the door) switch on for 1 second and then switch off again. You can modify the code [...]

The electronic lock SmartCard4 is Security system project based on AVR AT90S2313, similar chip with ATtiny2313. Rudi Slejkovec uses Baskom AVR to compile the code. The advantage from this project is it has small physic, easy to make and use.

Checkpoint Charlie is a security system that features an effective access control terminal based on LPC2138 microcontroller. The project uses Java Card smart card for user-authentication program and performs a challenge-response scheme using a symmetric cryptographic algorithm for optimum reliability. Activity at the terminal is logged and can be transmitted remotely via an RS-232 interface. [...]