Circuit Lake

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I’m sure that everyone has alarm clock in their house from the simple to the elaborate, to help them get a start on the day. But you need to be there to set it. DJ Delorie has design Multifunctional Alarm Clock that has three primary features: automatic time setting on power-up, remote management and [...]

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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) [...]

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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 [...]

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 [...]

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.