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Car Reverse Horn

Car Reverse Horn

+IC1975328IC2121110987234561++++++MELODYGENERATOR+R1R3VR1C2R2C1C5C6C10C3C4R4C7C8C9LS1C11R5+12VAMPLIFIERCar Reverse Horn
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publish time: 2020-10-26
Circuit Everyday

This is a simple project called "Car Reverse Horn" that can be used as a rear Horn in a Car -- that is, when the Car is traveling in Reverse, it makes a sound.The core of the car's anti-horn circuit is the melody generator IC CIC2877 (IC1), followed by the amplifier IC and a small number of passive components.The IC1 is made of A ROM oscillator and a preamplifier, which further produces sound.

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