khoih-prog
commented
4 years ago Because you're using resource-limited Mega, not powerful ESP8266, with powerful libraries to support complicated features.
Moreover, the W5x00 shields also have 2K buffer size limitation unless you change.
Try the smallest html page, then add more until it breaks. But the html page size must be much less than 2K. Must be very careful while writing code to avoid unnecessary large local vars, such as
{
String root_code = html_page; <== create big unnecessary local var.
server.send(200,"text/html",root_code);
}Start with the following code
void handleRoot()
{
server.send(200,"text/html", html_page);
}test.h
const char html_page[] = "<!DOCTYPE html><html><head><title>AVR_WM</title><style>div,input{padding:5px;font-size:1em;}input{width:95%;}body{text-align: center;}\
fieldset{border-radius:0.3rem;margin:0px;}</style></head>\
<div style=\"text-align:left;display:inline-block;min-width:260px;\"><fieldset>\
<div><label>SSID</label><input value=\"your-SSID\"id=\"id\"><div></div></div>\
<div><label>PWD</label><input value=\"your-PWD\"id=\"pw\"><div></div></div></fieldset>";and have this webpage displayed
EY789
innsbruckcreate
Hello Khoih,
I am trying to read a file test.h containing html code to send it to the web browser but shows a blank page. I am using Arduino Mega and Ethernet shield W5100 Wiznet.
include test.h
void handleRootl(){String root_code = html_page;server.send(200,"text/html",root_code);}test.h file contains:
const char html_page[] PROGMEM = R"=====(<!DOCTYPE HTML><html> ........ </html>)=====";The sketch works fine with ESP8266WebServer. Please let me know how to solve it.