![]() #include // required by SD #include // required for SD card #define SDSS1pin 53 // on the UNO the Sparkfun SDSS pin is 8 !!! #define SDSS2pin 13 // on the UNO the Sparkfun SDSS pin is 8 !!! File anyFile // for logging day records File entry File root String fileName = "anyFile. script to deminstrate 2 x 16 LCD and 2 x SD card. In fact more than 2 SD cards can be attached this way as long as the CS pins are connected to different pins. Launch the Acronis True Image OEM application and click Clone Disk. When switching back to the first SD card, do a digitalWrite(13, HIGH) before the SD.begin(53).Īlso make sure to close any open files fileName.close() when data has been written to a file before switching to the other SD card. Note: Acronis True Image Activation key included with select Kingston products. However, by doing a digitalWrite(53, HIGH) before the SD.begin(13), the first one is de-selected and the other SD card will be selected. ![]() ![]() In the sketch, only one SD card can be open at the same time, SD.begin(53). Note that the SD cards need 3.3 Volt as VCC but they cab handle 5V on the logical pins (or at least the ones I used). I suspect it is impossible to clone the card completely, > including serial number.snip Larry, you did. > serial number of the SD card, so just backing up the data isn't > enough. The CID number is valuable because software developers. SD number 2, CS pin is connected to 13 (or any other unused digital pin). The CID number is a unique card identifier number that is unique to the card itself. ![]() SD number 1, CS (chip-select) pin is connected to 53 and Attached the 2 SD cards as per standard instructions except for 1 pin: Also want to be able to copy a file from one SD card to another. Wanted to write 2 SD cards from one Arduino (Mega or other) with the SD library. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |