Arduino blinking led code Next, delay for some time. If you don't have the optional parts written below, you can do this tutorial without them. 1 int led = 13; LED Blink. The IDE should open the code to blink the builtin LED automatically. Photograph of blinking LED using Arduino Blink LED with Arduino - Photograph by CircuitsToday Video of blinking LED with Jan 26, 2022 · LED Blink and Fade with Arduino. Jul 1, 2017 · LED (generic) 1. CODE Comments: //Project -- blink a LED Any line of code that has “//” put before it will not be compiled by the complier. CODE. LED Blinking Arduino – Blink an External LED. The Arduino LED blinking control project is the easiest project for beginners learning Arduino programming.