ESP8266 Community Forum

- Thu Dec 17, 2015 5:31 pm #36674 How many bytes I can send/receive with post method using ESP8266WebServer?
I am using Arduino 1.6.5 environment; 2.0.0 ESP8266 library.

- Thu Dec 17, 2015 5:41 pm #36676 The chunk size buffering is 1460 bytes, but this is all managed under the hood. You can still send a huge data stream, it will chunk it into those smaller packet. For example, if you have an JPEG image stored in the Flash as a PROGMEM constant from your sketch and send it using send_P() function, it can be 64K or even more, depending of the size of the Flash. There are also streamFile() function to stream from SDCard or SPIFFS files. For receiving, there is no much limit there too, except that you need to store the data received somewhere, again probably to SDCard or SPIFFS too.

- Thu Dec 17, 2015 5:52 pm #36677 I am sending/receiving configuration data for my project (flashed}. It counts 320 variables.
Names of vars are short (e.g. a1-a320). All are 16bites integers.
Not all is writen, depends on how many chars are transmited.

- Thu Dec 17, 2015 6:59 pm #36681 So, it should be pretty easy...