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Home » Categories » Alarm circuits » Other alarm circuits (Moisture alarm,Fridge door alarm,Frost alarm...
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remote control and Intruder detector
This transmitter is designed to work with the next circuit as a remote control transmitter/receiver. It is only a single channel and you could once get multi-channel chips for the whole job.
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test
test123
---947
Tower Light Alarm Circuit
Accurate tower light monitoring is a serious matter, and great care can be taken to install a thorough and automatic monitoring system. Designing a system to provide a single-lamp failure can quickly fill several status channels on a facility\'s tran
---811
UltraSonic Radar
This is a very interesting project with many practical applications in security and alarm systems for homes, shops and cars.
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Voice Activated Alarm Clock
The rationale of our idea is to provide an additional convenience for routine activities that many people have to face every night; that is, setting their alarm clocks! The alarm clock we implement will feature a voice activated alarm setting compon
---906
water level detector
PIC based water level detector.low power consumtion.
---988
Water Level Indicator with alarm
This circuit not only indicates the amount of water present in the overhead tank but also gives an alarm when the tank is full.
---155
Water seepage alarm
Water seepage alarm with 2 transistor
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Wire Loop Alarm
This circuit is a simple wire loop alarm that can be used in doorways, hallways, or any other place the tripwire will be broken by intruders. The circuit has a built in siren, but it can be replaced by a relay to drive an external siren, commercial a
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