Car Reverse Horn Circuit Diagram. Here is a simple circuit that will produce a musical horn when ever your car is in reverse gear the circuit uses two ics for the operation voltage regulator 7805 ic1 and musical tone generator um66 ic2. Car reverse horn circuit diagram.
The circuit is using two ics which are a lm78l05 voltage regulator ic and a um66 melody ic. One of the timers is wired as an astable multivibrator to generate the tone and the other is wired as a monostable multivibrator. Whenever user reverses its car brake switch gets connected to power supply and circuit will get power supply for its working.
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.
The circuit is using two ics which are a lm78l05 voltage regulator ic and a um66 melody ic. Simple when the car will be in reverse gear the brake switch will become activated and supply power to this horn circuit hence the circuit starts generating a melody. The ic1 reduces the car battery voltage to 5v. This car reverse horn circuit can be used with any vehicle having 12v battery.
