Merge pull request #2 from nliviu/sntp

Add sntp sync

Author: cpq

fs/init.js

@@ -1,30 +1,41 @@
 load('api_ds3231.js');
 load('api_timer.js');
+load('api_events.js');
 
-let DS3231_I2C_addresss = 0x68 ; 
+let DS3231_I2C_addresss = 0x68;
 
 // Initialize DS3231 library
 let rtc = DS3231.create(DS3231_I2C_addresss);
 
-let setRtcDate = function(date, month, year) {
+let setRtcDate = function (date, month, year) {
 	rtc.setTimeDate(date);
 	rtc.setTimeMonth(month);
 	rtc.setTimeYear(year);
 };
 
-let setRtcTime = function(hours, minutes, seconds) {
+let setRtcTime = function (hours, minutes, seconds) {
 	rtc.setTimeSeconds(seconds);
 	rtc.setTimeMinutes(minutes);
 	rtc.setTimeHours(hours);
 };
 
-setRtcDate(15,09,17);
-setRtcTime(23,55,00);
+setRtcDate(15, 09, 17);
+setRtcTime(23, 55, 00);
 
-Timer.set(1000 /* milliseconds */, true /* repeat */, function() {
-	print('Time: ', rtc.getTimeHours(), ':', rtc.getTimeMinutes(), ':', rtc.getTimeSeconds() );
+Timer.set(1000 /* milliseconds */, true /* repeat */, function () {
+	print('Time: ', rtc.getTimeHours(), ':', rtc.getTimeMinutes(), ':', rtc.getTimeSeconds());
 	print('Date: ', rtc.getTimeDate(), '-', rtc.getTimeMonth(), '-', rtc.getTimeYear(), ' Day of the week -', rtc.getTimeDayOfTheWeek());
 }, null);
 
-
-
+function timeChangedHandler(ev, evdata, userdata) {
+	let now = ffi('char *update_time(void)')();
+	print('timeChangedHandler - now:' + now);
+	let now_obj = JSON.parse(now);
+	setRtcDate(now_obj.day, now_obj.month, now_obj.year);
+	setRtcTime(now_obj.hour, now_obj.minute, now_obj.second);
+}
+
+// 
+// Add handler for MGOS_EVENT_TIME_CHANGED
+// https://github.com/cesanta/mongoose-os/blob/1508fece2cf563b15ea52ba453487195332439e3/fw/include/mgos_event.h#L101
+Event.addHandler(Event.SYS + 3, timeChangedHandler, null);

mos.yml

@@ -18,6 +18,9 @@ tags:
 filesystem:
   - fs
 
+sources:
+  - src
+
 libs:
   - origin: https://github.com/mongoose-os-libs/js-demo-bundle
   - origin: https://github.com/mongoose-os-libs/arduino-ds3231

src/main.c

@@ -0,0 +1,12 @@
+#include "mgos.h"
+
+const char *update_time(void) {
+  time_t now = time(NULL);
+  struct tm *t = localtime(&now);
+  static char buf[128];
+  struct json_out jsout = JSON_OUT_BUF(buf, sizeof(buf));
+  json_printf(&jsout, "{year:%d,month:%d,day:%d,hour:%d,minute:%d,second:%d}",
+              t->tm_year - 100, t->tm_mon + 1, t->tm_mday, t->tm_hour,
+              t->tm_min, t->tm_sec);
+  return buf;
+}