Getting date and time from ntp server with esp8266 node mcu
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Getting Date & Time From NTP Server With ESP8266 NodeMCU ----------------------------------------------------------------------------------- Email: [email protected] linkden: www.linkedin.com/in/elaf-a-saeed-97bbb6150 facebook: https://www.facebook.com/profile.php?id=100004305557442 twitter: https://twitter.com/ElafASaeed1 github: https://github.com/ElafAhmedSaeed youtube: https://youtube.com/channel/UCE_RiXkyqREUdLAiZcbBqSg slideshare: https://www.slideshare.net/ElafASaeed Slideplayer: https://slideplayer.com/search/?q=Elaf+A.Saeed Google Scholar: https://scholar.google.com/citations?user=VIpVZKkAAAAJ&hl=ar&gmla=AJsN-F7PIgAjWJ44Hzb18fwPqJaaUmG0XzbLdzx09
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Getting date and time from ntp server with esp8266 node mcu
- 1. Internet ofThings Getting Date & Time From NTP Server With ESP8266 NodeMCU Eng. Elaf A.Saeed
- 2. The Contents • NTP Server With ESP8266 NodeMCU. • Getting Day & Time From NTP Server With ESP8266 NodeMCU. • Getting Current Day and Time from NTP Server. • Getting Current Date and Time from NTP Server.
- 3. Getting Day & Time & date From NTP Server With ESP8266 NodeMCU
- 4. NTP Server With ESP8266 NodeMCU
- 5. NTP Server With ESP8266 NodeMCU (cont.) • NTP stands for Network Time Protocol and it is a networking protocol for clock synchronization between computer systems. In other words, it is used to synchronize computer clock times in a network. • The protocol can be used to synchronize all networked devices to Coordinated Universal Time (UTC) within a few milliseconds ( 50 milliseconds over the public Internet and under 5 milliseconds in a LAN environment). • Coordinated Universal Time (UTC) is a world-wide time standard, closely related to GMT (Greenwich Mean Time). UTC does not vary, it is the same world wide.
- 6. NTP Server With ESP8266 NodeMCU (cont.) ❑NTPArchitecture • NTP uses a hierarchical architecture. Each level in the hierarchy is known as a stratum. • At the very top are high-precision timekeeping devices, such as atomic clocks, GPS or radio clocks, known as stratum 0 hardware clocks. • Stratum 1 servers have a direct connection to a stratum 0 hardware clock and therefore have the most accurate time. • Each stratum in the hierarchy synchronizes to the stratum above and act as servers for lower stratum computers.
- 7. NTP Server With ESP8266 NodeMCU (cont.) ❑How NTP Works? • NTP can operate in a number of ways. The most common configuration is to operate in client-server mode. The basic working principle is as follows: 1. The client device such as ESP8266 connects to the server using the User Datagram Protocol (UDP) on port 123. 2. A client then transmits a request packet to a NTP server. 3. In response to this request the NTP server sends a time stamp packet. 4. A time stamp packet contains multiple information like UNIX timestamp, accuracy, delay or time zone. 5. A client can then parse out current date & time values.
- 8. NTP Server With ESP8266 NodeMCU (cont.) ❑Installing the NTPClient Library • We’ll use the NTPClient library to get time. In your Arduino IDE, go to Sketch > Library > Manage Libraries. The Library Manager should open. • Search for NTPClient and install the library by Fabrice Weinber as shown in the following image.
- 9. Getting Day & Time From NTP Server With ESP8266 NodeMCU
- 10. Getting Day & Time From NTP Server With ESP8266 NodeMCU ❑NTPClient Library Time Functions • getDay() – returns an int number that corresponds to the the week day (0 to 6) starting on Sunday; • getHours() – returns an int number with the current hour (0 to 23) in 24 hour format; • getMinutes() – returns an int number with the current minutes (0 to 59); • getSeconds() – returns an int number with the current second; • getEpochTime() – returns an unsigned long with the epoch time (number of seconds that have elapsed since January 1, 1970 (midnight GMT); • getFormattedTime() – returns a String with the time formatted like HH:MM:SS;
- 11. Getting Day & Time From NTP Server With ESP8266 NodeMCU (cont.)
- 12. Getting Current Day and Time from NTP Server (cont.)
- 13. Getting Current Day and Time from NTP Server (cont.)
- 14. Getting Current Date and Time from NTP Server ❑Function that is used in Code 1. year()➔ Set or read the RTC year value. Syntax year(unsigned long year) 2. month() ➔ Set or read the RTC month value. Syntax month(unsigned long month) 3. day() ➔ Set or read the RTC day value. Syntax day(unsigned long day)
- 15. Getting Current Date and Time from NTP Server (cont.) ❑Function that is used in Code 4. minute() ➔ Set or read the RTC minute value. Syntax: minute(unsigned long minute) 5. second() ➔ Set or read the RTC second value. Syntax: second(unsigned long second) .
- 16. Getting Current Date and Time from NTP Server (cont.)
- 17. Getting Current Date and Time from NTP Server (cont.)
- 18. Getting Current Date and Time from NTP Server (cont.)
- 19. Getting Current Date and Time from NTP Server (cont.)
- 20. Thanks