It’s the ‘Hello World’ of computer design, and it’s at least as complex as blinking a LED with an Arduino ... A little code burned onto an EEPROM, and then I’ll actually have something ...

Run Arduino. 2. Open the LED blink example sketch ... Connect your desired sensor and run the code. Check the FAQs on the Arduino* IDE Troubleshooting and FAQ guide. Try searching the forums ...

Blink does one thing — it blinks a built-in LED on the Arduino. There's a description of the sample in the comment at the top of the editor window and online. In code, comments are notes ...