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SD Card Library Photon Compat An Implementation of the Arduino/Sparkfun SD Card Library for the Particle Photon. This library is a fork of the Spark Core SD library. The code has been modified so that ...

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.

So, in short, destroy your SD cards if you have any dirty info on them and keep your eyes peeled for ultra-small, ultra-fast Arduino hacks.

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 ...

Now that his BootDrive project is nearing completion, he’s ready to give every Arduino the ability to program another Arduino over an SD card.