GitHub - head-labs/sd-card-library: An Implementation of the Arduino/Sparkfun SD Card Library for the Spark Core
![WR-CRD Micro SD Card Connector Hinge 8 pins | Electromechanical Components | Würth Elektronik Product Catalog WR-CRD Micro SD Card Connector Hinge 8 pins | Electromechanical Components | Würth Elektronik Product Catalog](https://www.we-online.com/catalog/media/o33063v209%20Family_05_SMT_ZIF_Horizontal_p294_WR-FPC_6871xx182122_4C.jpg)
WR-CRD Micro SD Card Connector Hinge 8 pins | Electromechanical Components | Würth Elektronik Product Catalog
![mr.mobiles: Understanding Mobile Phones Removable Memory Card Pinouts - For Memory Card Problems and Failure Repair mr.mobiles: Understanding Mobile Phones Removable Memory Card Pinouts - For Memory Card Problems and Failure Repair](http://3.bp.blogspot.com/_8JZhVVmpICU/TH_Pxa19MHI/AAAAAAAAApg/pgSppwx0gY8/s280/SD+card+pinout.jpg)
mr.mobiles: Understanding Mobile Phones Removable Memory Card Pinouts - For Memory Card Problems and Failure Repair
problem with interfacing SDIO with STM32 (F103RET6) without additional board using direct connection to 9 pin SD-CARD
![How to do pulling up or down correctly when interfacing a microSD card? - Electrical Engineering Stack Exchange How to do pulling up or down correctly when interfacing a microSD card? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/izQKT.png)