First commit

.gitignore

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+led

led.cpp

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+/* led.cpp */
+#include"led.h"
+#include<iostream>
+#include<fstream>
+#include<string>
+#include<sstream>
+
+#define LED_PATH "/sys/class/leds/beaglebone:green:usr"
+
+CLED::CLED(int ledNumber){
+	this->ledNumber = ledNumber; //Solo para argumentos que sean numeros
+	std::ostringstream s;
+	s << LED_PATH << ledNumber;
+	path =std::string(s.str()); //convert to string
+}
+
+void CLED::WriteLED(std::string filename, std::string value){
+	std::ofstream fs;
+	fs.open((path+filename).c_str());
+	fs << value;
+	fs.close();
+}
+
+void CLED::RemoveTrigger(){
+	WriteLED("/trigger", "none");
+}
+
+void CLED::TurnOn(){
+	std::cout << "LED Turn On" << ledNumber << "on" << std::endl;
+	RemoveTrigger();
+	WriteLED("/brightness", "1");
+}
+
+void CLED::TurnOff(){
+	std::cout << "LED Turn Off" << ledNumber << "off" << std::endl;
+	RemoveTrigger();
+	WriteLED("/brightness", "0");
+}
+
+void CLED::BlinkLED(){
+	std::cout << "LED blinking" << ledNumber << "blinking" << std::endl;
+	WriteLED("/trigger", "timer");
+	WriteLED("/delay_on", "50");
+	WriteLED("/delay_off", "50");
+}
+
+CLED::~CLED(){
+	std::cout << "destroying LED " << path << std::endl;
+}

led.h

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+/* class LED for manage BBB leds
+ * Gustavo Mart�nez Mondrag�n 14/03/2022*/
+#ifndef LED_H
+#define LED_H
+#include<iostream>
+#include<fstream>
+#include<string>
+#include<sstream>
+
+
+class CLED{
+	private:
+		std::string path;
+		int ledNumber;
+		virtual void WriteLED(std::string filename, std::string value);
+		virtual void RemoveTrigger();
+	public:
+		CLED(int ledNumber); //class creator
+		virtual ~CLED(); //class deconstructor
+		virtual void TurnOn();
+		virtual void TurnOff();
+		virtual void BlinkLED();
+};
+
+#endif

main.cpp

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+#include"led.h"
+#include<string>
+using namespace std;
+
+int main(int argc, char* argv[]){
+	CLED led1 = CLED(3);
+	string cmd(argv[1]);
+	
+	if(argc!=2)
+		std::cout << "Incorrect number of arguments" << std::endl;
+	
+	if(cmd=="on")
+		led1.TurnOn();
+	
+	else if(cmd=="off")
+		led1.TurnOff();
+	
+	else if(cmd=="blink")
+		led1.BlinkLED();
+	
+	else
+		cout << "Invalid command" << endl;
+	
+	return 0;
+}
+

makefile

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+all: 
+	g++ main.cpp -o led led.cpp
+
+clean:
+	rm led
+
+debug:
+	g++ -g main.cpp -o led led.cpp