I'm looking for an NTP time server that displays the current time in text form via html after entering a web address. We exclude watch pages of the type because the microprocessor chip in which it is to work cannot handle such a page.

The servers are 99% synchronised with NTP anyway. So you just need to find one that can be read from html. Or make your own. Code: JavascriptLog in, to see the code

This example is wrong because the uC will not write a javascript interpreter. On any server on the network you have access to, write yourself a short script in php echo a string with the data you are interested in (I have not met a server that does not have clock synchronisation).

And isn't it easier to implement the classic NTP. If you're going to have the answer in a string, you're probably going to trim it and convert it to inty anyway.

It is much easier to implement the classic NTP String -> int definitely easier than implementing NTP

But NTP is not that difficult. Since you have sending/receiving frames it's downhill from there. You send a frame Code: C / C++Log in, to see the code The server sends you a frame from which you have to extract Code: C / C++Log in, to see the code The rest is just splitting.

NTP as the name suggests , is a standalone protocol, and in a formal sense there is no NTP in ASCII. It is a very old protocol, from the days when resources were conserved, and among other things includes the concept of compensating for packet time of flight in networks of the time. My guess is that use in the native version gives a much smaller need than HTTP for RAM/CPU so with puncet times .... (unless the software already has a relationship with HTTP)

I use the firmware with NTP in my ESP plugged into the AVR I retrieve the time using the AT+CIPNTP command in response I get Time: 22:48:25 01/15/2016 GMT+01 All I need to do now is parse this into a struct

Is it possible to know which firmware this is? Are there any sources for it?

There is NTP, there is also SNTP. The latter protocol is simpler to implement and I suspect there are plenty of examples of how to decode data from this protocol.

I don't remember the source. Probably github.com. Type in google esp8266 firmware ntp you will find for sure. I'm happy to help if you have any questions.

NTP time server in ASCII via HTML - I am looking for a simple solution

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How can I get the current time from a server in a simple text format that a microcontroller can read without processing a full HTML page?

Use standard NTP or SNTP directly instead of trying to scrape a full HTML page, because NTP is a standalone protocol and is lighter on RAM/CPU than HTTP; SNTP is even simpler to implement [#15591742][#15591590][#15591682][#15596916] If you really need an ASCII response over web access, create your own minimal server-side script, for example a short PHP file that echoes only the current date/time as plain text, which the microcontroller can then parse [#15591249] JavaScript-based pages are not suitable here because the microcontroller will not run a JavaScript interpreter [#15591249] One example from the thread shows firmware returning a simple NTP time string like `Time: 22:48:25 01/15/2016 GMT+01`, which can then be parsed into a structure [#15596807]

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#1 15590908 09 Apr 2016 12:53

Duch__ Duch__

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Post #1
15590908 09 Apr 2016 12:53

I'm looking for an NTP time server that displays the current time in text form via html after entering a web address. We exclude watch pages of the type http://www.timeanddate.com/worldclock/poland/warsaw because the microprocessor chip in which it is to work cannot handle such a page.
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#2 15590953 09 Apr 2016 13:13

A.Gieronimo A.Gieronimo

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15590953 09 Apr 2016 13:13

The servers are 99% synchronised with NTP anyway.
So you just need to find one that can be read from html.
Or make your own.
Code: Javascript
Log in, to see the code
#3 15591249 09 Apr 2016 14:59

Anonymous Anonymous

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Post #3
15591249 09 Apr 2016 14:59

This example is wrong because the uC will not write a javascript interpreter.

On any server on the network you have access to, write yourself a short script in php

echo a string with the data you are interested in (I have not met a server that does not have clock synchronisation).
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#4 15591590 09 Apr 2016 17:01

Samuraj Samuraj

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15591590 09 Apr 2016 17:01

And isn't it easier to implement the classic NTP.
If you're going to have the answer in a string, you're probably going to trim it and convert it to inty anyway.
#5 15591625 09 Apr 2016 17:15

Anonymous Anonymous

Anonymous

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Post #5
15591625 09 Apr 2016 17:15

Samuraj wrote:
And it is not easier to implement the classic NTP.
It is much easier to implement the classic NTP
String -> int definitely easier than implementing NTP
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#6 15591682 09 Apr 2016 17:39

Samuraj Samuraj

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15591682 09 Apr 2016 17:39

But NTP is not that difficult. Since you have sending/receiving frames it's downhill from there.

You send a frame
Code: C / C++
Log in, to see the code

The server sends you a frame from which you have to extract
Code: C / C++
Log in, to see the code

The rest is just splitting.
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#7 15591742 09 Apr 2016 18:04

JacekCz JacekCz

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15591742 09 Apr 2016 18:04

NTP as the name suggests , is a standalone protocol, and in a formal sense there is no NTP in ASCII. It is a very old protocol, from the days when resources were conserved, and among other things includes the concept of compensating for packet "time of flight" in networks of the time.

My guess is that use in the "native" version gives a much smaller need than HTTP for RAM/CPU so with puncet times .... (unless the software already has a relationship with HTTP)
#8 15596807 11 Apr 2016 21:48

tomson5 tomson5

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15596807 11 Apr 2016 21:48

I use the firmware with NTP in my ESP plugged into the AVR
I retrieve the time using the AT+CIPNTP command
in response I get Time: 22:48:25 01/15/2016 GMT+01
All I need to do now is parse this into a struct
#9 15596833 11 Apr 2016 21:57

Samuraj Samuraj

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15596833 11 Apr 2016 21:57

Is it possible to know which firmware this is?
Are there any sources for it?
#10 15596916 11 Apr 2016 22:24

michalko12 michalko12

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Post #10
15596916 11 Apr 2016 22:24

There is NTP, there is also SNTP. The latter protocol is simpler to implement and I suspect there are plenty of examples of how to decode data from this protocol.
#11 15597323 12 Apr 2016 08:12

tomson5 tomson5

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Post #11
15597323 12 Apr 2016 08:12

I don't remember the source. Probably github.com. Type in google "esp8266 firmware ntp" you will find for sure. I'm happy to help if you have any questions.
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NTP time server in ASCII via HTML - I am looking for a simple solution

NTP time server in ASCII via HTML - I am looking for a simple solution

How can I get the current time from a server in a simple text format that a microcontroller can read without processing a full HTML page?

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