Audio and Siren Circuit

Practical with Sound Circuits :


Musical Bell : This Project uses UM66 for Musical notes generation and is amplified with a transistor and gives melody sound with a speaker.


Four Tone Siren : Produces four different sound that is Police siren, Fire engine sound, Ambulance and Machine g un effect with the help of single IC.

FM Transmitter : Simple FM Transmitter Circuit for receiving sound in FM radio. Transmission range is about 30 meters.

Fire Alarm : Simple Circuit for detection of fire. Simple and Mini

© 2020 by Arduino Projects, Ranchi

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