Question

What is the use of the SD.h Library in Arduino?

(a) To communicate with the SD Card Module

(b) To communicate with another microcontroller

(c) To communicate with the computer

(d) To communicate with the internet

I had been asked this question in an interview for internship.

This intriguing question originated from Standard Libraries topic in chapter Arduino Programming of Arduino

Answer 1

Correct option is (a) To communicate with the SD Card Module

To elaborate: The SD.h Library in Arduino allows for communications between the Arduino Board and an SD Card Module for storage and retrieval of data. It is dependent on the sdfatlib library which works on FAT16 and FAT32 filesystems.