PBI-M2 ZERO - pi4j

출처 : ORANGE PI ZERO PIN · Issue #333 · Pi4J/pi4j · GitHub

pi4 다운로드

$ wget http://get.pi4j.com/download/pi4j-1.2-SNAPSHOT.zip

pi4 압축풀기

$ unzip pi4j-1.2-SNAPSHOT.zip

LED 제어

소스

import com.pi4j.io.gpio.GpioController;
import com.pi4j.io.gpio.GpioFactory;
import com.pi4j.io.gpio.GpioPinDigitalOutput;
import com.pi4j.io.gpio.PinState;
import com.pi4j.io.gpio.RaspiPin;

public class LEDDemo {

	public static void main(String[] args) throws InterruptedException {
		
		// GPIO controller
		final GpioController gpio = GpioFactory.getInstance();
		
		// 14번 핀 모드 변경
		GpioPinDigitalOutput myLed = gpio.provisionDigitalOutputPin(RaspiPin.GPIO_25, // PIN NUMBER
				"My LED", // PIN FRIENDLY NAME (optional)
				PinState.LOW); // PIN STARTUP STATE (optional)
		
		// LED 켜기
		myLed.setState(PinState.HIGH);

		// 5초 대기
		Thread.sleep(5000);

		// LED 끄기
		myLed.setState(PinState.LOW);

		// GPIO controller 리스스 반환
		gpio.shutdown();
	}
}

컴파일

$ javac -cp .:pi4j-1.2-SNAPSHOT/lib/* -d . LEDDemo.java

실행

$ sudo java -cp .:pi4j-1.2-SNAPSHOT/lib/* -Dpi4j.linking=dynamic LEDDemo