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...
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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 board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- microSD card
- A microSD card is a small removable flash memory card used to store data such as audio, images, logs or program files. Its capacity and formatting (often FAT32 or exFAT) affect how much can be stored and whether the card needs preparing before 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
Source Code
Open-source libraries, firmware & example projects for this product
Micro SD Sniffer TOL-09419
cb83797
almost 11 years ago
· 10 commits
- Hardware Adding in license file, .git files, updating directory names, readme cleanup almost 11 years ago
- Production Adding in license file, .git files, updating directory names, readme cleanup almost 11 years ago
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- .gitignore Adding in license file, .git files, updating directory names, readme cleanup almost 11 years ago
- LICENSE.md Adding in license file, .git files, updating directory names, readme cleanup almost 11 years ago
- README.md Adding in license file, .git files, updating directory names, readme cleanup almost 11 years ago
Related Tutorials
Free guides on learn.littlebird.com.au
