Embedded Programming with Modern C++ Cookbook

How to do it...

We are going to create a simple application that gradually changes the brightness of an LED connected to a general-purpose pin on a Raspberry Pi board:

1. In your ~/test working directory, create a subdirectory called pwm.
2. Use your favorite text editor to create a pwm.cpp file in the pwm subdirectory.
3. Let's put in the required include functions and define a function called Blink:

#include <chrono>#include <thread>#include <wiringPi.h>using namespace std::literals::chrono_literals;const int kLedPin = 0;void Blink(std::chrono::microseconds duration, int percent_on) {    digitalWrite (kLedPin, HIGH);    std::this_thread::sleep_for(            duration * percent_on / 100) ;    digitalWrite (kLedPin, LOW);    std::this_thread::sleep_for( duration * (100 ...