Circuit Lake

Electronic Project and Circuit Collection

Alarm


AVR Camera Security System

May 21, 2009 By: admin Category: Alarm, AVR, Microcontroller, Project, Security System No Comments →

The Witness Camera is automated AVR Camera Security System that has self-recording feature and a gigabyte-class flash card as recording media. Witness camera project build because available surveillance solutions were too expensive or impractical for home use. The project system built from a VGA CMOS color camera, an microcontroller avr ATmega32, a passive-infrared (PIR) movement […]

PIC GSM SMS Alarm

May 08, 2009 By: admin Category: Alarm, Microcontroller, PIC No Comments →

PIC GSM SMS Alarm is a electronic project by trax tha has capability to sendi SMS when alarm triggered. It use Siemens GSM phone as sms sender and PIC 16F84A as main processor. The project has 5 inputs so it can send 5 different SMS messages.  Trax said that when alarm condition happens each sensor […]

Simple Motorcycle Alarm

March 20, 2009 By: admin Category: Alarm, Electronic Schematic No Comments →

If you need an alarm for your bike? then this is a simple – easy to build – transistor based motorcycle alarm could be suit with your need. This alarm will work at 12-volts but you can use 6 volt if you change the relay for 6-volt coil. It will protect your “Classic Bike” from […]

AVR Tiny Gas Detector

February 07, 2009 By: admin Category: Alarm, AVR, Project No Comments →

An ATtiny45 microcontroller controls this intelligent detection system. The hardware and firmware is optimized to implement the liquefied petroleum gas alarm for domestic or automotive use.