Human mobility is higher, so that almost all activities conducted outside the home.By utilizing the phone lines, home or office lighting systems can be controlled fromelsewhere during a phone facilities. This tool makes it easy for users to turn on orturn off the lights.By using the DTMF receiver, this tool will work if you've heard a dial tone with thetelephone receiver, where the receiver can generate a unique frequency, so thelighting can be controlled.Telephone frequencies generated will be converted into binary, which is thenconnected to the controller circuit of RS flip flop loads and relays.
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