PCF8593 RTC examples

hello,
i looking examples of sketches pcf8593 real time clock.
there few libraries on web find , seem old version of arduino , can't them work.  none have example sketches.

anyone have working sketch pcf8593?

roger

https://github.com/kbrowder/pcf85xx-arduino/blob/master/src/examples/pcf8593/pcf8593.cpp

code: [select]

/**
* \author kevin browder
* \copyright gnu public license.
**/
#include "pcf8593.h"
#include "../../pcf85xxrtc.h"
#include "arduino.h"
#include "stream.h"
#include <time.h>

void setup() {
    serial.begin(9600);
    serial.println("started");
    pcf85xx::getdefaultrtc()->reset();
    setsyncprovider( pcf85xx::getdefaulttime );
}

void loop() {
    char str[256];
    snprintf(str, 256, "%04u-%02u-%02ut%02u:%02u:%02u", year(), month(),
           day(), hour(), minute(), second());
    serial.println(str);
    delay(5000);
}


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