Embedded Programming with Modern C++ Cookbook

How to do it...

We will create an application that blinks an LED connected to the Raspberry Pi board using a new libgpiod API:

1. In your ~/test working directory, create a subdirectory called gpiod.
2. Use your favorite text editor to create a gpiod.cpp file in the gpiod subdirectory.
3. Put the code for the application into the rtc.cpp file:

#include <chrono>#include <iostream>#include <thread>#include <gpiod.h>#include <gpiod.hpp>using namespace std::literals::chrono_literals;const int kLedPin = 17;int main (void){  gpiod::chip chip("gpiochip0");  auto line = chip.get_line(kLedPin);  line.request({"test",                 gpiod::line_request::DIRECTION_OUTPUT,                  0}, 0);  while (true) {    line.set_value(1);    std::cout << "ON" << std::endl; std::this_thread::sleep_for(500ms); ...