DTMF decoder here is used to controll 8 type of electrical instruments via telephone line,
you can switch ON or OFF your home appliances from any where in the world
the circuit is shown in the pics it has two sections which is control relays and decoder circuit
after getting dial tone you can enter number to select your appliance to switch ON or OFF
INDUSTRY UTILIZATION :
- can be widely used at home to control electrical as well as electronic equipments from anywhere in world
- In industries it is useful for security check,management of automatic processes.
- can be used as ECS
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