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/*
* Author: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
* Copyright (c) 2015 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "tm1637.h"
#include <signal.h>
#include <unistd.h>
#include <sstream>
#include <time.h>
using namespace std;
using namespace upm;
bool run = true;
void sig_handler(int signo)
{
if (signo == SIGINT)
run = false;
}
int
main(int argc, char** argv)
{
//! [Interesting]
bool point = true;
int timezone = -7; // Your UTC offset
time_t rawtime;
struct tm * gmt;
char myTime[5];
fprintf(stdout, "TM1637 Display Example\n");
signal(SIGINT, sig_handler);
TM1637 myDisplay = TM1637(0, 1); // TM1637 on pins 0 (clk) and 1 (dio)
myDisplay.write(0x39, 0x09, 0x09); // Start a box using 7-segment encoding
myDisplay.writeAt(3, ']'); // Finish box using writeAt function
sleep(3); // Wait 3 seconds
while(run)
{
time(&rawtime); // Update raw time
gmt = gmtime(&rawtime); // Get current time
int hour = (gmt) ? gmt->tm_hour : 0;
int min = (gmt) ? gmt->tm_min : 0;
// Format and store the time in 24 hour format
snprintf(myTime, 5, "%2d%02d", (hour + timezone + 24) % 24, min);
myDisplay.write(myTime); // Write to display as string
myDisplay.setColon(point ^= true); // Toggle the dots on the display
sleep(1); // Only update once every second
}
//! [Interesting]
return 0;
}
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