What is MRAA and UPM? MRAA (mraa.io) – pronounced ‘em rah’ is the hardware abstraction layer in Arduino Create* for Linux* based platforms. It is an open source project, and it supports ...

(basic wiring, pinout, and output signal) Adding Arduino to your rotary encoder Now that your rotary encoder hardware is up and running it’s time to tell your Arduino what to do with the encoder ...

For those just getting to grips with basic digital electronics, it can be daunting, however. For those just starting out, [陳亮] put together a handy guide to building the core of an Arduino ...

Of course, knowing the basics of Arduino is only half the battle; if you want to get to the fun stuff you'll have to learn how to code it as well.