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 it will compile for the ...

This example demonstrates how to use the navigation switch and detect if the SD card is inserted. The !INT pin of the GPIO expander IC (PCA9554) triggers an interrupt any time a button is pressed or ...

So here’s the thing: Arduino’s built-in memory is tiny. If you’re just blinking LEDs, no problem. But the moment you try to log data, say battery usage, temperature over time, or GPS coordinates, ...