It is a pretty common first project to use an Arduino (or similar) to blink an LED. Which, of course, brings taunts of: you could have used a 555! You can, of course, also use any sort of ...

1. Run Arduino. 2. Open the LED blink example sketch: File > Examples > 1.Basics > Blink. You should see a window like in Figure 2. 3. Choose Tools > Board, then select your board, like in Figure 3.

The latest version of the Arduino is the Arduino Uno (Revision 3). For this tutorial ... and after a second or so, an LED on the board should start slowly blinking. The image below points out ...

The Julia programming language is a horrible fit for a no-frills microcontroller like the ATMega328p that lies within the classic Arduino ... manages to blink an LED slowly.

In this article I will add some simple Arduino LED projects starting with basic ones like how to turn on an LED, blinking, and more. Every step will have the code, the schematic, photos of the project ...