Description
About the circuit:
The circuit uses the timer IC, a condenser mic. The mic is used to convert the sound signal into electrical signal. These signals are amplified by transistor T1 and given to the IC the output of IC1 is from pin number3 which is used as reference input of transistor T2 which is used to drive the relay.
With a clap a relay will be energized and will remain on as per setting of VR1.The minimum time for which it would remain on is two minutes and maximum is five minutes, which is sufficient for a toy car. If the on time of relay is to be increased then the value of C3 will be increased and delay wants to decrease then the value of C3 should be less.
It can be operated on 6V to 12V DC after changing the relay according to required voltage.
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