Hi,
I tried to install the DateTime library. But when I try to run it, I get the error message:
22: error: DateTime.h: No such file or directory In function 'void getPCtime()':
In function 'void digitalClockDisplay()':
I am running arduino16 on mac osx 10.5.8
I downloaded the datetime.zip with the library folders etc. and I extracted it in /Applications/arduino-0016/hardware/libraries
I restarted arduino software, and the library DOES show up in Sketch>Import Library (which is how I included it)
What am I doing wrong? Sorry if this is totally trivial! I couldn't find anyone else having this problem. Thanks so much!
#include <DateTime.h>
#include <DateTimeStrings.h>
#define TIME_MSG_LEN 11 // time sync to PC is HEADER and unix time_t as ten ascii digits
#define TIME_HEADER 255 // Header tag for serial time sync message
void setup(){
Serial.begin(19200);
}
void loop(){
getPCtime(); // try to get time sync from pc
if(DateTime.available()) { // update clocks if time has been synced
unsigned long prevtime = DateTime.now();
while( prevtime == DateTime.now() ) // wait for the second to rollover
;
DateTime.available(); //refresh the Date and time properties
digitalClockDisplay( ); // update digital clock
// send our time to an app listening on the serial port
Serial.print( TIME_HEADER,BYTE); // this is the header for the current time
Serial.println(DateTime.now());
}
}
void getPCtime() {
// if time available from serial port, sync the DateTime library
while(Serial.available() >= TIME_MSG_LEN ){ // time message
if( Serial.read() == TIME_HEADER ) {
time_t pctime = 0;
for(int i=0; i < TIME_MSG_LEN -1; i++){
char c= Serial.read();
if( c >= '0' && c <= '9')
pctime = (10 * pctime) + (c - '0') ; // convert digits to a number
}
DateTime.sync(pctime); // Sync DateTime clock to the time received on the serial port
}
}
}
void digitalClockDisplay(){
// digital clock display of current time
Serial.print(DateTime.Hour,DEC);
printDigits(DateTime.Minute);
printDigits(DateTime.Second);
Serial.print(" ");
Serial.print(DateTimeStrings.dayStr(DateTime.DayofWeek));
Serial.print(" ");
Serial.print(DateTimeStrings.monthStr(DateTime.Month));
Serial.print(" ");
Serial.println(DateTime.Day, DEC);
}
void printDigits(byte digits){
// utility function for digital clock display: prints colon and leading 0
Serial.print(":");
if(digits < 10)
Serial.print('0');
Serial.print(digits,DEC);
}
