Page 31 and 39 of the Super Starter Manual.
The program can be found by opening the IDE software and take the following steps:
File > Examples > 01.Basics > Blink
In this lesson, you will learn how to connect an LED using the breadboard, get it to blink, and change the brightness of an LED by using different values of resistor.
(1) x Elegoo Uno R3
(1) x 5mm red LED
(1) x 220 ohm resistor
(1) x 1k ohm resistor
(1) x 10k ohm resistor
(2) x M-M wires (Male to Male jumper wires)