Install and Check the WiringPiΒΆ
wiringPi
is a C language GPIO library applied to the Raspberry Pi. It complies with GUN Lv3. The functions in wiringPi are
similar to those in the wiring system of Arduino. They enable the users
familiar with Arduino to use wiringPi more easily.
wiringPi
includes lots of GPIO commands which enable you to control all
kinds of interfaces on Raspberry Pi.
Please run the following command to install wiringPi
library.
sudo apt-get update
git clone https://github.com/WiringPi/WiringPi
cd WiringPi
./build
You can test whether the wiringPi library is installed successfully or not by the following instruction.
gpio -v

Check the GPIO with the following command:
gpio readall

For more details about wiringPi, you can refer to WiringPi.