Alarms & Indicators based mini projects

Index:

1.Timed Burglar Alarm
2.Beeper
3.Big Ben Sound
4.Car anti theft wireless alarm
5.Water Level Indicator with alarm
6.Power supply failure alarm
7.Rain Alarm
8.Melody generator for greeting cards
9.Frost Alarm or Cold Activated Switch by IC 741
10.Event Failure Alarm By IC Timer 7555
11.Gate Alarm by IC 4011
12.Simple Fuse Monitor Alarm

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Battery-project

Index:

1.Gel Cell Charger, I
2.Battery Booster
3.ALKALINE CHARGER
4.Temperature Controlled NICD Charger by IC LM311
5.Battery Monitoring By LM324

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