SD cards can be accessed with two modes. The first is the SDIO mode, which is what cameras, laptops, and other card readers use. The second mode is SPI mode. SPI is slower, but much, much simpler.

This is a example Code for the Arduino to controll a Micro SD Card Module - Releases · MootSeeker/Micro-SD-Card-Module-for-Arduino ...

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A maker developer has squeezed an Arduino onto an SD card. He was inspired by Intel’s Edison compute module and he tried to go one better. The result is the SDuino, an ATMega328P processor-based ...

Let’s do something crazy: Let’s combine an Arduino Pro Mini (or compatible) with a BMP180 air pressure and an SD card module, and explore long-term infrasound level recording. Log in here as a ...

The camera used in the module is an OV5640 – 5MP camera sensor with a JPEG encoder built-in. It has a 72-degree field of view and an auto-focus motor. The board uses Adafruit’s PyCamera code, and ...

[Kevin] attached a MicroSD breakout board to an Arduino-compatible clone. When the clone starts up, it searches the SD card for a file called ‘program.hex.’ ...