Chat freely about anything...

User avatar
By Sirquil
#76937 Some browser HTTP Requests to ESP8266 Web Server are timing out; is there a way to correct? There are no sleep commands in"NTP_Time-Synced_Web_Interface."

Have Googled sleep commands. Confused on how to apply; what would be used in the case of a web server to trigger a GPIO pin?

Website having some requests needing reloading:

Weather data logger and Web Server with no real time clock, NTP based clock time-syncing ESP8266.
(64.19 KiB) Downloaded 20 times
User avatar
By btidey
#76945 I think it will help if you can say a bit more about what server requests are being done.

I can't find any server.on set ups which would normally be used to configure the requests the server will respond to. Likewise I can't see any server.handleClient calls which gives the server the opportunity to respond to requests.

It looks like the server is just supporting readFile in a polled fashion. Is that right? One then needs to know how often the readFile is being called.

It might be worth considering using the FSBrowser method for supporting reading Files on the server.

Personally I don't like the strategy of splitting a giant ino across lots of ino files. Although this may seem to be a modular approach, in reality it is still a giant ino file but with the disadvantage that it is trickier to search for stuff. I think it is easier to understand if the code is modularised in the form of libraries or classes.
User avatar
By Sirquil
#76947 Brower requests are handled by listen function. All of the tabs to the right of "NTP_Time-Synced_Web_Interace.ino" are functions. Once the server has a GET request it is evaluated according if conditionals. Server requests for Weather, SdBrowse, and Graphs all occasionally take longer and timeout -- on the 1st request of a browser session; however, request can be reloaded okay. After the first request pages load quickly.

Weather page is created dynamically and produced after reading BME280 sensor.

I am a hobbyist/programmer, self taught and only recently learned of the ESP8266 Web servers.

Response time from server is 1 to 2 seconds; file downloads are very fast using readFile function.

I just started using tabbed compiling; I do see your point regarding searching for something.

User avatar
By btidey
#76954 OK. I can see you are doing your own server parsing in listen. Lack of response is going to be either a problem in listen itself or that listen is not called often enough.

I am not sure why you have chosen this route to the server side handling. It seems a bit complex and complexity leads to behaviour more difficult to understand.

The method used in many cases for server side handling is to define server.on handlers in setup and then just call server.handleClient regularly within the loop. This will automatically call the requisite handlers when GET or POST requests are received. One can also have a catch all server.onNotFound to handle requests not catered for in other server.on

For example

server.on(("/Weather", handleWeatherData); in setup
server.handleClient(); in loop

will call the void handleWeatherData function when a request to /Weather is made. This function can end up just doing a
server.send(200, "text/html", response);

Any number of server.on can be put into setup which then modularises the code quite effectively.