“42mm Nema 17 stepper motor L bracket（with Screw）” has been added to your cart. View cart

SPI Interface SD Card Module

Description
Reviews (0)

SPI Interface SD Card Module is a simple and widely used breakout board that allows a microcontroller to read from and write to a standard SD card. It uses the Serial Peripheral Interface (SPI) protocol for communication, which is supported by virtually all microcontrollers, including Arduino and Raspberry Pi. This module is essential for applications that require non-volatile data logging, such as weather stations, data recorders, or projects that need to store large amounts of configuration data or images.
Description
The module contains a voltage regulator, a level shifter, and a slot for a standard or micro SD card. The level shifter is crucial because most SD cards operate at 3.3V, while many popular microcontrollers (like some Arduino models) use a 5V logic. The level shifter ensures safe communication by converting the voltage levels between the two devices. The SPI protocol is a four-wire interface:
* MOSI (Master Out, Slave In): Data sent from the microcontroller to the SD card.
* **MISO (Master In, Slave Out): Data sent from the SD card to the microcontroller.
* SCK (Serial Clock): The clock signal for synchronizing data transfer.
* **CS (Chip Select): A pin used by the microcontroller to select the SD card.
Specifications
* Operating Voltage: Typically 5V or 3.3V. The module itself usually has a 3.3V regulator to power the SD card.
* Interface: SPI (Serial Peripheral Interface).
* Card Support: Supports standard SD cards and micro SD cards.
* Data Pins:
* VCC (Power)
* GND (Ground)
* CS (Chip Select)
* SCK (Serial Clock)
* MOSI (Master Out, Slave In)
* MISO (Master In, Slave Out)
* On-board Features:
* 3.3V Voltage Regulator: Provides the required power for the SD card.
* Logic Level Shifter: Converts 5V signals to 3.3V and vice-versa, allowing it to work with both 5V and 3.3V microcontrollers.
* Standard Pin Headers: Designed for easy connection to breadboards or jumper wires.