This tutorial will guide you, How to blinking LED in raspberry Pi gpio
First install git core
Then download wiringPi
Then change directory to wiringPi
Then build
Then create new ledblink.c file and type your program
press Control+X to save file
Then compile your program
once program compiled without error, then build your program
Connect led to GPIO 17 pin as per circuit
Now led blinking with 1000 ms delay
