Almost every program you write will use loops, or repeating statements. Computers don't get bored or distracted, so they can run the same code over and over with no trouble. Depending on what type of loop you use, you can have something repeat forever

Arduino - Blinking LED - LEDs are small, powerful lights that are used in many different applications. To start, we will work on blinking an LED, the Hello World of microcontrollers.

The Stepper Motors therefore are manufactured with steps per revolution of 12, 24, 72, 144, 180, and 200, resulting in stepping angles of 30, 15, 5, 2.5, 2, and 1.8 degrees per step. The stepper motor can be controlled with or without feedback.