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79 lines
1.9 KiB
79 lines
1.9 KiB
/* led.cpp */
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#include"led.h"
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#include<iostream>
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#include<fstream>
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#include<string>
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#include<sstream>
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#define LED_PATH "/sys/class/leds/beaglebone:green:usr"
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CLED::CLED(int ledNumber){
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this->ledNumber = ledNumber; //Solo para argumentos que sean numeros
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std::ostringstream s;
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s << LED_PATH << ledNumber;
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path =std::string(s.str()); //convert to string
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}
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void CLED::WriteLED(std::string filename, std::string value){
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std::ofstream fs;
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fs.open((path+filename).c_str());
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fs << value;
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fs.close();
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}
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void CLED::RemoveTrigger(){
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WriteLED("/trigger", "none");
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}
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void CLED::TurnOn(){
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std::cout << "LED" << ledNumber << "on" << std::endl;
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RemoveTrigger();
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WriteLED("/brightness", "1");
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}
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void CLED::TurnOff(){
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std::cout << "LED" << ledNumber << "off" << std::endl;
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RemoveTrigger();
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WriteLED("/brightness","0");
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}
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void CLED::blink(){
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std::cout << "LED" << ledNumber << "blinking" << std::endl;
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WriteLED("/trigger", "timer");
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WriteLED("/delay_on", "50");
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WriteLED("/delay_off", "50");
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}
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CLED::~CLED(){
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std::cout << "destroying LED " << path << std::endl;
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}
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int main(int argc, char* argv[]){
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if(argc!=2){
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std::cout << "Para usarse es: makeLEDS <comand>" << std::endl;
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std::cout << "los comandos son on, off y blink" << std::endl;
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}
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std::cout << "Starting app" << std::endl;
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std::string cmd(argv[1]);
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// se crean 4 objetos de LED y se ponen en el array para controlar todos los LEDS.
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CLED leds[4]= {CLED(0), CLED(1), CLED(2), CLED(3) };
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for(int i=0; i<=3; i++){
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if(cmd=="on")leds[i].TurnOn();
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else if(cmd=="off")leds[i].TurnOff();
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else if(cmd=="blink")leds[i].blink();
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else{std::cout << "comando invalido" << std::endl;
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std::cout << "Para encender el LED utilice: ./leds on" << std::endl;
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std::cout << "Para apagar el LED utilice: ./leds off" << std::endl;
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std::cout << "Para hacer parpadear el LED utilice: sudo ./leds blink" << std::endl;
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}
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}
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std::cout << "programa terminado" << std::endl;
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return 0;
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}
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