The Arduino Operating System

WGPIOhile Arduino and its libraries are the quickest way to interface with a sensor and blink an LED, sometimes you shouldn’t have to write and compile code to do something exceptionally simple. [Oliver] realized most of the overly simple functions of a microcontroller could be done from a command line running on that microcontroller and came up with the MiniPirate, the Arduino command line tool.

The MiniPirate is just a sketch compiled on the Arduino that allows pins to be set high or low, set a PWM value, or reading and writing I2C bytes. It’s basically an extremely slimmed down version of the Bus Pirate meant for extremely simple modifications of circuits and peripherals.

[Oliver] demos his MiniPirate by taking a DS1307 real-time clock, wiring up the I2C bus, and writing values to set the time. It’s a very simple implementation meaning he needs to write everything in hex, but it’s still easy enough to find a use in many other projects.

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