I'm selecting a microcontroller to process input data from other external circuits and store text data for 2 or 3 days at each storage run.
What will be the size of the stored text files?
I also need the microcontroller to be low power-consuming as I need a selected battery to supply enough power to the microcontroller to last at least 2 or 3 days.
What limitations do you have on the battery voltage/capacity?
I'm basically confused about the specifications that I need to look for in a microcontroller. From my understanding, microcontrollers are selected based on CPU speed,
Are the input data rates high and do they require lots of data processing?
ROM/other storage capacity, amount of I/O ports and A/D converters,
Do you require RS232 or other type of communication with a remote PC?
power consumption, and price.
Power consumption and price will be controlled by the requirements, as above.
Can anyone suggest any more specifications that I need to look for?