Example Code for Raspberry Pi-Drive LED

Last revision 2026/01/24

This article provides a comprehensive guide on controlling an LED using a Raspberry Pi and the WiringPi library, including installation steps, a wiring diagram, and sample code for LED blinking.

Software Preparation

Install WiringPi Library

> sudo apt-get update
> sudo apt-get install git-core
> sudo git clone git://git.drogon.net/wiringPi
> cd wiringPi
> ./build

for test

> gpio -v
> gpio readall

Wiring Diagram

connect pic

Sample Code

#this is linux shell script
#blink.sh using wiringPi library

PIN=6
gpio mode $PIN out
while true;
do
gpio write $PIN 1
sleep 1
gpio write $PIN 0
sleep 1
done

Result

example

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