4 Functions of a microcontroller. 1. Input. Input is the information that is given to the microcontroller to process. 2. Processing. After receiving input the microcontroller then processes that info. It then reacts in the manner which it was programmed.
3. Output. After processing the info, the microcontroller then sends that info to an output port. Where it then proforms its duty. 4. Communication. Communication is the final step,the end result. This is how the product connects with the user. By giving the user what he/she wanted.
The Microcontroller is the “brain” behind the whole shabang .