emsApplication/applications/WebConfigure/example/cgiExample/LED.cpp

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2024-05-24 12:19:45 +08:00
#include "LED.h"
LED::LED(int number)
{
this->number = number;
// much easier with C++11 using to_string(number)
std::ostringstream s; // using a stream to contruct the path
s << LED_PATH << number; //append LED number to LED_PATH
path = std::string(s.str()); //convert back from stream to string
}
void LED::writeLED(std::string filename, std::string value)
{
return;
#if 0
std::ofstream fs;
fs.open((path + filename).c_str());
fs << value;
fs.close();
#endif
}
void LED::removeTrigger()
{
writeLED("/trigger", "none");
}
void LED::turnOn()
{
using namespace std;
cout << "Turning LED" << number << " on." << endl;
removeTrigger();
writeLED("/brightness", "1");
}
void LED::turnOff()
{
using namespace std;
cout << "Turning LED" << number << " off." << endl;
removeTrigger();
writeLED("/brightness", "0");
}
void LED::flash(std::string delayms = "50")
{
using namespace std;
cout << "Making LED" << number << " flash." << endl;
writeLED("/trigger", "timer");
writeLED("/delay_on", delayms);
writeLED("/delay_off", delayms);
}
void LED::outputState()
{
using namespace std;
ifstream fs;
fs.open((path + "/trigger").c_str());
string line;
while( getline(fs, line) ) cout << line << endl;
fs.close();
}
LED::~LED()
{
using namespace std;
cout << "destroying the LED with path: " << path << endl;
}