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83 lines
2.2 KiB
C++
83 lines
2.2 KiB
C++
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/*
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Time Check
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Gets the time from the linino processor via Bridge
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then parses out hours, minutes and seconds for the Arduino
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using an Arduino Yún.
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created 27 May 2013
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modified 21 June 2013
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By Tom Igoe
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This example code is in the public domain.
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*/
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#include <Process.h>
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Process date; // process used to get the date
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int hours, minutes, seconds; // for the results
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int lastSecond = -1; // need an impossible value for comparison
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void setup() {
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Bridge.begin(); // initialize Bridge
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Serial.begin(9600); // initialize serial
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while(!Serial); // wait for Serial Monitor to open
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Serial.println("Time Check"); // Title of sketch
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// run an initial date process. Should return:
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// hh:mm:ss :
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if (!date.running()) {
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date.begin("date");
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date.addParameter("+%T");
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date.run();
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}
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}
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void loop() {
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if(lastSecond != seconds) { // if a second has passed
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// print the time:
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if (hours <= 9) Serial.print("0"); // adjust for 0-9
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Serial.print(hours);
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Serial.print(":");
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if (minutes <= 9) Serial.print("0"); // adjust for 0-9
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Serial.print(minutes);
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Serial.print(":");
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if (seconds <= 9) Serial.print("0"); // adjust for 0-9
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Serial.println(seconds);
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// restart the date process:
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if (!date.running()) {
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date.begin("date");
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date.addParameter("+%T");
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date.run();
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}
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}
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//if there's a result from the date process, parse it:
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while (date.available()>0) {
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// get the result of the date process (should be hh:mm:ss):
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String timeString = date.readString();
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// find the colons:
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int firstColon = timeString.indexOf(":");
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int secondColon= timeString.lastIndexOf(":");
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// get the substrings for hour, minute second:
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String hourString = timeString.substring(0, firstColon);
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String minString = timeString.substring(firstColon+1, secondColon);
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String secString = timeString.substring(secondColon+1);
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// convert to ints,saving the previous second:
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hours = hourString.toInt();
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minutes = minString.toInt();
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lastSecond = seconds; // save to do a time comparison
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seconds = secString.toInt();
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}
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}
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