Electronic horn for car / Rosaniza Ismail and Tengku Mohd Azhar Tengku Ahmad

Horn is an apparatus, usually use in a car, which makes a loud and short warning sound.
This project describes the constructional and working details of and electronic horn This electronic horn is primarily designed for the use of car. It can also be used effectively as a novel doorbell. The electronic horn is not like a normal car horn because it produces a two-note modulated sound output The circuit involves digital and analogue concept. The components involved in our project are timer IC, audio amplifier IC, zener diodes, resistors, capacitors and loudspeaker.