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chore: nest project under Arduino/WeatherPredictor

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Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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oskarvitalii
2026-07-18 11:41:01 +07:00
co-authored by Claude Opus 4.8
parent 2e3af80188
commit 482a788f10
24 changed files with 0 additions and 0 deletions
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WeatherPredictor/rtc_time.cpp
-42
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#include <RTClib.h>
#include <time.h>
#include <ESP8266WiFi.h>
#include "config.h"
#include "rtc_time.h"
static RTC_DS3231 rtc;
bool rtcBegin() { return rtc.begin(); }
bool rtcLostPower() { return rtc.lostPower(); }
RtcTime rtcNow() {
DateTime n = rtc.now();
return RtcTime{ n.year(), n.month(), n.day(), n.hour(), n.minute(), n.second() };
}
void rtcSet(const RtcTime& t) {
rtc.adjust(DateTime(t.year, t.month, t.day, t.hour, t.minute, t.second));
}
uint32_t rtcEpoch() {
return rtc.now().unixtime();
}
bool ntpSync(int tzOffsetMin) {
// NTP servers by IP to bypass DNS (this network doesn't resolve names reliably).
// Cloudflare (162.159.200.123) and Google (216.239.35.0/.4) are stable anycast.
configTime(tzOffsetMin * 60, 0, "162.159.200.123", "216.239.35.0", "216.239.35.4");
time_t now = time(nullptr);
int tries = 0;
while (now < 1700000000 && tries < 120) { // up to ~30 s
delay(250);
now = time(nullptr);
tries++;
}
if (now < 1700000000) return false;
struct tm* lt = localtime(&now);
rtcSet(RtcTime{ (uint16_t)(lt->tm_year + 1900), (uint8_t)(lt->tm_mon + 1),
(uint8_t)lt->tm_mday, (uint8_t)lt->tm_hour,
(uint8_t)lt->tm_min, (uint8_t)lt->tm_sec });
return true;
}