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https://github.com/radames/ntp_rtc_sync

RTC Clock Sync with the NTP Protocol on ESP8266 Arduino
https://github.com/radames/ntp_rtc_sync

arduino esp8266 ntp ntp-client rtc rtc-module sync sync-rtc-clock wifi

Last synced: 3 months ago
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RTC Clock Sync with the NTP Protocol on ESP8266 Arduino

Host: GitHub
URL: https://github.com/radames/ntp_rtc_sync
Owner: radames
Created: 2017-10-23T02:40:02.000Z (over 7 years ago)
Default Branch: master
Last Pushed: 2017-10-23T02:48:02.000Z (over 7 years ago)
Last Synced: 2024-10-26T22:30:55.439Z (3 months ago)
Topics: arduino, esp8266, ntp, ntp-client, rtc, rtc-module, sync, sync-rtc-clock, wifi
Language: Arduino
Homepage:
Size: 1.95 KB
Stars: 17
Watchers: 5
Forks: 3
Open Issues: 0
Metadata Files:
- Readme: README.md

# Sync RTC clock with NTP

## Libs

You must have the libs:

* [Adafruit RTCLib](https://github.com/adafruit/RTClib)
* [Arduino NTP Client](https://github.com/arduino-libraries/NTPClient)

You can install from Arduino/ Manage Libraries menu

## Wifi

Copy `WifiPass.h.config` to `WifiPass.h` and change the `ssid` and `password` to your wifi network information.

## Parameters
Change the `NTP_SERVER` to a suitable server.

```C
#define NTP_SERVER "0.us.pool.ntp.org"
```

Change the GMT time zone `GMT_TIME_ZONE` you can add a signed number

```C
#define GMT_TIME_ZONE -7
```

You can force the time sync after the first time changing the `FORCE_RTC_UPDATE` to a random number between 0-255
```C
#define FORCE_RTC_UPDATE 2
```