Description: 1. An SD (Secure Digital) card module is an expansion module used in various IoT projects to add data storage capabilities through an SD card interface. 2. Size and Shape: The module typically comes in a compact rectangular shape that fits standard SD cards, ensuring easy integration into most projects. 3. Versatility: Suitable for numerous IoT applications, including data logging, image capturing, music players, e-readers, and more. 4. Easy Interface: It offers a simple to use interface with standard 4-pin SD card connections: power (VCC), ground (GND), clock (CK), and command/data (CD). 5. High Capacity Storage: Supports various sizes of SD cards, allowing for storage capacities ranging from 2GB to over 1TB, depending on the specific project requirements. 6. Fast Data Transfer Rates: Depending on the card's class, transfer rates can be as high as 300MB/s, ensuring quick data access and processing. 7. Secure Data Protection: Utilizing Secure Digital technology, this module prov
| Specification | Details |
|---|---|
| Specification | Detail |
| Interface | SPI (Serial Peripheral Interface) or 4-bit mode |
| Flash Memory Capacity | up to 2TB (supports SDHC/SDXC and SD/UHS-I cards) |
| Read Speed | up to 50MB/s (depending on the card used) |
| Write Speed | up to 20MB/s (depending on the card used) |
| Operating Voltage | 3.3V or 5V (selectable through jumper settings) |
| Operating Temperature | -25°C to +85°C (industrial temperature range) |
| Power Consumption | typically around 10mA (depending on usage) |
| Dimensions | approximately 30mm x 45mm x 5mm |
| GPIO Pins | supports various GPIO pin configurations (e.g. for SPI I2C and other interfaces) |
| Connector Type | supports standard SD card slot (compatible with most microSD cards) |
