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Microcontrollers are actually computers. All computers have a central processing unit (CPU) which loads the necessary programs, random-access memory (RAM) where variables can be stored and input/ output devices. But all these units are embedded in a single chip making them to be small, low-cost and low power.
Microcontrollers take control of many devices these days. Controlling of tiny devices to huge machines , computer keypads to microwave oven keypads, blinking LED devices to the large LCD theater displays, all modern automobiles are done by microcontrollers.
I will briefly discuss what is a microcontroller? How it works? Ultimately how you can begins using it with your own electronic projects.
