Circuit Lake

Electronic Project and Circuit Collection

Alarm


Wireless Pool Alarm, WatchDuck

June 16, 2011 By: admin Category: Alarm, Microcontroller, Monitoring, PIC, Project No Comments →

The WatchDuck is an accelerometer-based low cost wireless pool alarm. It will give an alert when a child or an object fell into water. All operation in this project is controlled by PIC 18F23K20 microcontroller. The alarm is composed of two parts: the detector and the base station. The detector is using an accelerometer module […]

Simple Temperature Alarm

February 16, 2011 By: admin Category: Alarm, Digital, Measurement, Microcontroller, PIC, Project No Comments →

The project shows you how to build a simple temperature alarm with PIC16C84 microcontroller and a 2-line LCD display. It can be used as a temperature alarm or a thermostat – the only difference being that with an alarm an intermittent beep is produced when a limit is exceeded.

Chimney Fire Alarm Monitor

January 19, 2011 By: admin Category: Alarm, AVR, Detector, Digital, Microcontroller, Monitoring, Project No Comments →

Chimney Sentinel is remote fire alarm that can give a warning of fires caused by wood-burning appliances. The project uses a probe inserted in the chimney and a remote monitoring unit built based on PIC16F628. When a fire is detected, the device will sounds an alarm before smoke has time to reach other detectors within […]

Mini Train Stop Alarm, Station Master

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

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 […]