SparkFun
SparkFun microSD Sniffer
The SparkFun microSD Sniffer lets you tap into the SPI traffic between a microSD card and its host device for debugging or reverse engineering. Insert one en...
The SparkFun microSD Sniffer lets you tap into the SPI traffic between a microSD card and its host device for debugging or reverse engineering. Insert one end into a standard microSD socket and plug a microSD card into the onboard socket — all SPI signals are then broken out to an 8-pin 0.1″ pitch header for connection to a logic analyser or microcontroller.
Key Features
- SPI Bus Sniffer – Passthrough design lets you monitor all microSD SPI traffic
- 8-Pin Breakout Header – 0.1″ (2.54 mm) pitch for easy connection to logic analysers
- Inline Design – Sits between the host socket and microSD card transparently
- Standard microSD Form Factor – Compatible with any standard microSD slot
Ideal For
- Debugging SPI communication with SD cards
- Reverse engineering SD card protocols
- Logic analyser capture of microSD traffic
- Embedded systems development and testing
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- microSD card
- A microSD card is a small removable memory card used to store files such as audio tracks. For this product, the card is where the sound files live, so its capacity and formatting can affect how many sounds you can use.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
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Brands
Prototyping & Wiring
SparkFun microSD Sniffer Schematic
Schematic · 80.9 KB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 575.3 KB · Click any page to view full size
Resources & Downloads
Guides, code examples, and more
Related Tutorials
Free guides on learn.littlebird.com.au
