SDcard

loadfile()

The loadfile(filename, buffer, len) method loads the named file.

Parameters	Description
filename	The name of the file to read.
buffer	A pointer to a place in memory where file data will be stored.
len	The length of the buffer in bytes.

Returns: An integer representing the length of the buffer in bytes.

isInserted()

The isInserted() method returns the status of the SD Card.

Returns: true if an SD card is inserted into the brain. false if it is not.

size()

The size(filename) method returns the size in bytes of the named file.

Parameters	Description
filename	The name of the file to check.

Returns: An integer representing the size of file in bytes.

savefile()

The savefile(filename, buffer, len) method saves a bytearray into a named file.

Parameters	Description
filename	The name of the file to write.
buffer	A pointer to a place in memory where file data will be stored.
len	The length of the buffer in bytes.

Returns: An integer representing the length of the buffer in bytes.

appendfile()

The appendfile(filename, buffer, len) method appends data into a named file.

Parameters	Description
filename	The name of the file to write.
buffer	A pointer to a place in memory where file data will be stored.
len	The length of the buffer in bytes.

Returns: An integer representing the length of the buffer in bytes.

exists()

The exists(filename) method returns if the named file exists on the sd card.

Parameters	Description
filename	The name of the file to check.

Returns: true if file exists. false if it does not exist.