Circuit Lake

Electronic Project and Circuit Collection

Alarm Related Resources




Mini Train Stop Alarm, Station Master

December 04, 2010 By: admin Category: Alarm, AVR, Microcontroller, Project No Comments →

train stop remainder

The Station Master is a small key ring sized alarm that uses an accelerometer to track your movement. The device will gently vibrate and let you know when you’ve reached your stop and it’s time to disembark from the train. Using a simple one button interface the user can set an alarm for the right [...]

Home Alarm Security System

September 24, 2010 By: admin Category: Alarm, Detector, PIC, Project, Security System No Comments →

simple secure home alarm

This simple, secure and cheap home security system is activated and deactivated by little Rolling Code transmitter. The security system is equipped with two sounder, internal with piezo speaker and AG8 external sounder, a microprocessor controlled external sounder with a built in strobe and rich of features (silent installation,two flash settings, optional sounder settings (multi-sweep [...]


AVR Tiny Gas Detector

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

AVR Tiny Gas Detector

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.