Alarm Circuit | Door Bell Circuit

More then 30 types of alarm circuit, sound circuit and Door bell projects are published; the alarm circuit provides all of the functions for burglar alarms, temperature, moisture and other type of security or general system.

Alarm circuit can be used with a variety of security systems and other systems where physical parameters such as temperature, airflow, pressure, illumination etc, are continuously monitored. A substantial change in the electrical analog of the parameter being monitored will then activate the alarm device. Because of the low battery voltage-sensing feature, this IC is particularly useful in battery-type applications.

Electronics Projects Generated sound posted in www.bestengineeringprojects.com

 

Name of the Circuit Circuit Sample
1. 12 Tones Door Bell circuit diagram of 12 doorbell tones
2. Beeper Using Timer IC NE555 beeper using timer ic ne555
3. Charging Reminder For Emergency Light circuit diagram of charging reminder for emmergency light
4. Door Bell Circuit door bell circuit
5. Double Tune Car Reverse Horn circuit diagram of double tone car reverse horn
6. Electronic Siren circuit diagram of electronics siren
7. Light and Touch Operated Music Door Bell circuit diagram of light and touch operated music bell
8. Low Power Alarm Automatic Timer circuit diagram of low power alarm with automatic timer
9. Miniature IC Organ circuit diagram of miniature ic organ
10. Multi Tone Generator circuit diagram of multi tone generator
11. Rain Sound Generator circuit diagram of rain sound generator
12. Simple Warning Alarm Circuit diagram of transistorise warning alarm
13. Simple Power Resumption Alarm circuit diagram of simple power resumption alarm
14. Steam Whistle circuit diagram of steam whistle
15. Siren Circuit siren circuit
16. Toy Siren Using CD7400 a toy siren using cd7400
17. Door Ajar Alarm Circuit door
18. Aural Metronome circuit-diagram-of-aural-metronome
19. Tune Player Using Arduino tune player using arduino
20. Electronic Siren Circuit  electronic siren circuit
21. Multi Sound Generator Circuit multi sound generator circuit
22. Car Reverse Horn Circuit circuit diagram of car reverse horn
23.  Grasshopper Sound Generator using 555 Timer IC grasshopper sound generator circuit using 555 timer ic
24. Machine Sound Generator Using 555 Timer IC circuit diagram of machine sound generator
25. Mains Trigger Musical Door Bell Circuit mains trigger door bell circuit
26. Fire Alarm Using Thermistor and NE555 circuit diagram of fire alarm using thermistor and ne555
27. Sound Operated Intruder Alarm with Flash sound operated intruder alarm with flash light
28. Sound detector circuit using op-amp 741

 

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