gsm and sd card

Dependencies:   Base64

Changes

RevisionDateWhoCommit message
3:7b76a34e07c0 2019-07-11 Sergey_K add new SD work default tip
2:16796fbfa94d 2019-07-06 Sergey_K sd card and gsm
1:441cdd24333e 2019-07-06 Sergey_K 1
0:f7e73515c3fc 2019-07-02 Sergey_K 123