170bdd104f
Large change that removes the duplicated MIT notice withe a spdx tag Signed-off-by: Thomas Ingleby <thomas.ingleby@intel.com>
79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
/*
|
|
* Author: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
|
|
* Copyright (c) 2018 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: MIT
|
|
*/
|
|
|
|
#include <iostream>
|
|
#include <string>
|
|
#include <signal.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
#include "mraa/common.hpp"
|
|
#include "mraa/led.hpp"
|
|
|
|
// Define min and max brightness
|
|
#define LED_ON 255
|
|
#define LED_OFF 0
|
|
|
|
// This boolean controls the main loop
|
|
volatile bool should_run = true;
|
|
|
|
// Interrupt signal handler function
|
|
void
|
|
sig_handler(int signum)
|
|
{
|
|
if (signum == SIGINT) {
|
|
std::cout << "Exiting..." << std::endl;
|
|
should_run = false;
|
|
}
|
|
}
|
|
|
|
// Main function
|
|
int
|
|
main()
|
|
{
|
|
// Perform a basic platform and version check
|
|
if (mraa::getPlatformType() != mraa::INTEL_UP2) {
|
|
std::cout << "This example is meant for the UP Squared board." << std::endl;
|
|
std::cout << "Running it on different platforms will likely require code changes!" << std::endl;
|
|
}
|
|
|
|
if (mraa::getVersion().compare("v1.9.0") < 0) {
|
|
std::cout << "You need MRAA version 1.9.0 or newer to run this sample!" << std::endl;
|
|
return 1;
|
|
}
|
|
|
|
// Register handler for keyboard interrupts
|
|
signal(SIGINT, sig_handler);
|
|
|
|
// Define our LEDs
|
|
std::string led_names[] = {"red", "green", "yellow", "blue"};
|
|
int led_no = sizeof(led_names)/sizeof(led_names[0]);
|
|
mraa::Led **leds = new mraa::Led*[led_no];
|
|
|
|
// Initialize them
|
|
for (int i = 0; i < led_no; i++) {
|
|
leds[i] = new mraa::Led(led_names[i].c_str());
|
|
}
|
|
|
|
// Blink them in order and pause in-between
|
|
while (should_run) {
|
|
for (int i = 0; i < led_no; i++) {
|
|
leds[i]->setBrightness(LED_ON);
|
|
usleep(200000);
|
|
leds[i]->setBrightness(LED_OFF);
|
|
}
|
|
usleep(200000);
|
|
}
|
|
|
|
// Cleanup and exit
|
|
for (int i = 0; i < led_no; i++) {
|
|
delete leds[i];
|
|
}
|
|
delete [] leds;
|
|
return 0;
|
|
}
|