Today I will make a LED chaser using raspberry pi.
Step 1: Things That Are Required
1) Raspberry pi
2) 10x LED's
4) Jumper wires
Step 2: GPIO Pins
Before beginning lets get some idea about GPIO pins in raspberry pi.
GPIO stands for General-Purpose Input/Output. These pins are a physical interface between the Raspberry pi and the outside world.
There are 40 pins on the Raspberry pi (26 pins on previous models), and they provide various different functions.