Module electrical schematic diagram of Micro S D Card TF Card Read Write Module

Features

Experiment equipment:

• 1. Arduino-compatible motherboard Catduino (not familiar with open source hardware can be understood as Atmega328P MCU development board) and a mini USB cable;
• 1 x Micro SD card module;
• 1 x Samsung 2G Micro SD card;
• 1 x Arduino interface expansion board Base shield (internal link);
• 6 x female-to-female DuPont wires, used to connect the control interface of the module and the SPI interface from the Base Shield.

Experimental steps:

• 1. Insert the Base Shield directly into the Catduino motherboard, make sure that the SD card has been formatted as FAT16 or FAT32, and insert it into the SD card module.
• 2. Use 6 female-to-female DuPont wires to connect the SD card module to the SPI interface of the Base Shield
• 3. Connect Catduino with mini USB. If this motherboard is used for the first time, its USB-to-serial driver can be found from the drivers under the Arduino IDE directory.
• 4. The related programs for reading and writing the SD card can use the program that comes with the Arduino IDE, and the directory is...\Arduino-1.0\libraries\SD. Reopen the Arduino IDE, click the Open button on the toolbar, and open the CardInfo routine in SD, as shown in Figure below.

Note that the chip select signal pin should be changed to the chip select pin actually connected to the module. In this experiment Choose D10. Select the serial port and board name, and click the burn button to burn. This example shows how to read the information of the SD card, including the card type, file system type, storage capacity, and also lists the file names in the card. Click Serial Monitor to view it.