When selecting a microcontroller we have basic factors you need to put into consideration, as stated below:
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Find out the number of input/output pins that are going to be required for the application.
What interfaces are going to be required? For instance, if PWM is needed, you will have to consider microcontrollers that have PWM outputs like the PIC17C42.
Take note of the size of the memory that is required for the task.
How fast the instructions need to be processed is also a key factor to consider.
How many events will require interrupts in your task?
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