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LEDPhotoSpectrum.cc
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LEDPhotoSpectrum.cc
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/*
* Tool for automating the process of turning on all available LEDs one by one and
* measuring the spectrum of each LED and taking the picture of each using the camera.
* -c & -s flags are added to skip spectrum measurement or capturing of photograph
*/
#include <iostream>
#include <fstream>
#include <serial.h>
#include <boost/program_options.hpp>
#include <data.h>
#include <pr655.h>
#include "lpm.h"
#include "cfg.h"
int main(int argc, char **argv) {
namespace po = boost::program_options;
std::string arduinoDevFile;
std::string pr655DevFile;
bool pictureFlag = true;
bool spectrumFlag = true;
device::pr655 meter;
po::options_description opts("IRIS LED Photo Spectrum Tool");
opts.add_options()
("help", "Supported Arguments/Flags")
("arduino", po::value<std::string>(&arduinoDevFile), "Device file for Aurdrino")
("pr655", po::value<std::string>(&pr655DevFile), "Device file for pr655 Spectrometer")
("c", "Specify this flag to skip capturing of photographs from camera")
("s", "Specify this flag to skip measurement of spectrometer");
po::variables_map vm;
po::store(po::command_line_parser(argc, argv).options(opts).run(), vm);
po::notify(vm);
if(vm.count("c")) {
pictureFlag = false;
}
if(vm.count("s")) {
spectrumFlag = false;
}
if(vm.count("help")) {
std::cout << opts << std::endl;
return 0;
} else if(vm.count("arduino")) {
std::cout << "Opening Arduino Device File" << std::endl;
device::lpm lpm = device::lpm::open(arduinoDevFile); //connect to arduino
if(spectrumFlag) {
if(vm.count("pr655")) {
std::cout << "Opening pr655 Device File" << std::endl;
meter = device::pr655::open(pr655DevFile); //connect to pr655
} else {
std::cout << "Error: Specify pr655 device file" << std::endl;
return -1;
}
}
/*
* build the <LED Pin, Wavelength> map from YAML Config file
*/
const lpm::cfg store = lpm::cfg::default_cfg();
const std::map<uint8_t, uint16_t> ledMap = store.lpm_leds();
/*
* build the <LED wavelength,PWM> map from YAML Config file
*/
const std::map<uint16_t, uint16_t> ledPwmMap = store.lpm_pwm();
std::cout << "Traversing and printing the map; generated from LED PIN & Wavelength YAML Config File: " << std::endl;
for(auto elem : ledMap) {
std::cout << "pin: " << unsigned(elem.first) << " -- Wavelength: " << unsigned(elem.second) << "nm \n";
}
std::cout << std::endl << "Starting Process for all available LEDs..." << std::endl << std::endl;
std::map<uint16_t, spectral_data> spectrumData;
std::ofstream errorOut("data/error.txt");
for(auto elem : ledMap) {
std::cout << "$: Turning on " << unsigned(elem.second) << "nm LED on pin " << unsigned(elem.first) << " with PWM: " << ledPwmMap.at(elem.second) <<std::endl;
/*
* Turn on LED
*/
lpm.led(elem.first, ledPwmMap.at(elem.second));
std::cout << "---------------------------------------" << std::endl;
std::cout << "From arduino after turning LED on: " << std::endl;
lpm.receiveArduinoOutput(); //print stream from arduino
std::cout << "---------------------------------------" << std::endl << std::endl << std::endl ;
/*
* Time delay of 1 sec
*/
usleep(1000000);
if(pictureFlag) {
/*
* Take the picture
*/
std::cout << "$: Capturing Photograph from Camera" << std::endl;
lpm.shoot();
std::cout << "---------------------------------------" << std::endl;
std::cout << "From arduino after taking picture " << std::endl;
lpm.receiveArduinoOutput(); //print stream from arduino
std::cout << "---------------------------------------" << std::endl << std::endl << std::endl ;
/*
* Time delay of 1 sec
*/
usleep(1000000);
}
if(spectrumFlag) {
/*
* Measure the Spectrum
*/
std::cout << "$: Measuring the spectrum" << std::endl;
std::string prefix = "# ";
try {
bool could_start = meter.start();
if (! could_start) {
std::cerr << "Could not start remote mode" << std::endl;
meter.stop();
return -1;
}
meter.units(true);
bool could_measure = meter.measure();
device::pr655::cfg config = meter.config();
spectral_data data = meter.spectral();
if(could_measure) {
spectrumData.insert( std::pair<uint16_t , spectral_data>(elem.second, data) );
} else {
std::cout << ">>: Unable to measure spectrum of " << unsigned(elem.second) << "nm LED on pin " << unsigned(elem.first) << " with PWM: " << ledPwmMap.at(elem.second) <<std::endl;
errorOut << ">>: Unable to measure spectrum of " << unsigned(elem.second) << "nm LED on pin " << unsigned(elem.first) << " with PWM: " << ledPwmMap.at(elem.second) <<std::endl;
}
} catch (const std::exception &e) {
std::cerr << e.what() << std::endl;
}
meter.stop();
/*
* Time delay of 1 sec
*/
usleep(1000000);
}
/*
* Reset the LED
*/
std::cout << "$: Resetting the LED" << std::endl;
lpm.reset();
std::cout << "---------------------------------------" << std::endl;
std::cout << "From arduino after resetting" << std::endl;
lpm.receiveArduinoOutput(); //print stream from arduino
std::cout << "---------------------------------------" << std::endl << std::endl << std::endl ;
/*
* Time delay of 1 sec
*/
usleep(1000000);
}
if(spectrumFlag) {
std::ofstream fout("data/spectral.txt");
fout << "led,";
for(auto elem : spectrumData) {
spectral_data temp = elem.second;
for (size_t i = 0; i < temp.data.size(); i++) {
fout << temp.wl_start + i * temp.wl_step ;
if(i != (temp.data.size() -1) ) {
fout << ",";
}
}
break; // just to print top header line in dump file
}
fout << std::endl;
for(auto elem : spectrumData) {
fout << unsigned(elem.first) << ",";
spectral_data temp = elem.second;
for (size_t i = 0; i < temp.data.size(); i++) {
fout << temp.data[i] ;
if(i != (temp.data.size() -1) ) {
fout << ",";
}
}
fout << std::endl;
}
/*
* Closing Streams
*/
errorOut.close();
fout.close();
}
} else {
std::cout << "Not Enough Arguments. call --help for help" << std::endl;
}
return 0;
}