A 4-Channel Clap Activated Switch for Smart Homes

Sometimes we do not turn off the applications we use due to laziness, which results in the electrical waste because those applications stay switched on. In order to minimize the effort required by us to control all applications we use. This paper presents the design of a clap activated switch device that will serve well in different phono-controlled applications, providing inexpensive key it will control four switches using a single device. This involves the design of various sages consisting of the pickup transducer, low frequency, audio low power and low noise amplifier, A decade counter IC, special transistor and edge triggering network for low audio frequency.