Micro SD Socket

Type	Data Storage
Function	Large external storage

See 💾Selecting an SD card

Description:

The TID tolerance of commercial SD cards varies greatly depending on the charge-storage mechanism and NVM controller used by the card. In general, flash memory fabricated for single-level cells has greater TID thresholds than devices built with multi-level cells. Supported by findings from Kingsbury et al.,

Datasheet(s):

PyCubed Schematic:

PyCubed Board:

Located on the bottom side

Example Code:

'''
List the folders/files in the root of the sd card
'''
from pycubed import cubesat
import os

print(os.listdir('/sd'))

In python, it's convenient to use a with statement when accessing files because once the with statement is finished, the file is automatically closed.

'''
Print-out a file on the sd card line by line
'''
from pycubed import cubesat

with open('/sd/test.txt', 'r') as f:
	for line in f:
		print(line)

The 'a+' argument allows us to append the file, creating it if it doesn't already exist

'''
Append a file, create the file if it doesn't exist.
After appending, close, reopen, and read the contents.
'''
from pycubed import cubesat

with open('/sd/test.txt', 'a+') as f:
	f.write('hello world')

with open('/sd/test.txt', 'r') as f:
	for line in f:
		print(line)