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v1.6.0 to permit sending data more than 2K
### Releases v1.6.0 1. Fix severe limitation to permit sending larger data than 2K buffer 2. Add example [ATWebServer_BigData](https://github.com/khoih-prog/ESP8266_AT_WebServer/tree/master/examples/ATWebServer_BigData) to demo how to send larger data than 2K buffer 3. Modify example [AdvancedWebServer](https://github.com/khoih-prog/ESP8266_AT_WebServer/tree/master/examples/AdvancedWebServer) to demo how to send larger data than 2K buffer 4. Add new features, such as `CORS`, etc. 5. Use `allman astyle` and add `utils` 6. Update `Packages' Patches`
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‎examples/ATWebServer_BigData/ATWebServer_BigData.ino

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/****************************************************************************************************************************
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ATWebServer_BigData.ino
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For ESP8266/ESP32 AT-command running shields
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ESP8266_AT_WebServer is a library for the ESP8266/ESP32 AT-command shields to run WebServer
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Based on and modified from ESP8266 https://github.com/esp8266/Arduino/releases
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Built by Khoi Hoang https://github.com/khoih-prog/ESP8266_AT_WebServer
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Licensed under MIT license
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*****************************************************************************************************************************/
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// Credits of [Miguel Alexandre Wisintainer](https://github.com/tcpipchip) for this simple yet effective method
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// For some STM32, there is only definition of Serial in variant.h, and is used for Serial/USB Debugging
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// For example, in Nucleo-144 F767ZI original variant.h
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//
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// #define SERIAL_PORT_MONITOR Serial
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// #define SERIAL_PORT_HARDWARE Serial
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//
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// To use ESP8266/ESP32-AT, we need another Serial, such as Serial1
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// To do this, first, in corresponding variant.h, modify as follows:
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// #define SERIAL_PORT_HARDWARE Serial1
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//
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// then assign pins D0 = RX/D1 = TX to be Hardware Serial1 by putting in sketch as follows:
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//
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// #define EspSerial SERIAL_PORT_HARDWARE //Serial1
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// HardwareSerial Serial1(D0, D1);
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//
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// This must be included in defines.h for each board you'd like to use ESPSerial as Serial1
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//
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// The pin usage must be modified according to your boards.
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#include "defines.h"
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int status = WL_IDLE_STATUS; // the Wifi radio's status
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int reqCount = 0; // number of requests received
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#define WEBSERVER_PORT 80
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ESP8266_AT_WebServer server(WEBSERVER_PORT);
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// Adjust according to your board's heap size. Too large => crash
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#if (ESP8266_AT_USE_NRF528XX) || (ESP8266_AT_USE_RPIPICO)
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#define MULTIPLY_FACTOR 3.0f
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#else
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#define MULTIPLY_FACTOR 1.0f
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#endif
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// In bytes
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#define STRING_SIZE (8192 * MULTIPLY_FACTOR)
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#define BUFFER_SIZE 512
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char temp[BUFFER_SIZE];
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void createPage(String &pageInput)
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{
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int sec = millis() / 1000;
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int min = sec / 60;
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int hr = min / 60;
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int day = hr / 24;
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snprintf(temp, BUFFER_SIZE - 1,
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"<html>\
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<head>\
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<meta http-equiv='refresh' content='5'/>\
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<title>ATWebServer_BigData-%s</title>\
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<style>\
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body { background-color: #cccccc; font-family: Arial, Helvetica, Sans-Serif; Color: #000088; }\
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</style>\
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</head>\
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<body>\
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<h2>ATWebServer_BigData!</h2>\
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<h3>running on %s</h3>\
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<p>Uptime: %d d %02d:%02d:%02d</p>\
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</body>\
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</html>", BOARD_NAME, BOARD_NAME, day, hr % 24, min % 60, sec % 60);
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pageInput = temp;
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}
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String out;
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void handleRoot()
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{
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//out.reserve(STRING_SIZE);
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// clear the String to start over
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out = String();
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createPage(out);
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out += "<html><body>\r\n<table><tr><th>INDEX</th><th>DATA</th></tr>";
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for (uint16_t lineIndex = 0; lineIndex < (100 * MULTIPLY_FACTOR); lineIndex++)
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{
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out += "<tr><td>";
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out += String(lineIndex);
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out += "</td><td>";
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out += "ATWebServer_BigData_ABCDEFGHIJKLMNOPQRSTUVWXYZ</td></tr>";
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}
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out += "</table></body></html>\r\n";
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Serial.print(F("String Len = ")); Serial.println(out.length());
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server.send(200, F("text/html"), out);
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}
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void handleNotFound()
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{
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String message = F("File Not Found\n\n");
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message += F("URI: ");
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message += server.uri();
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message += F("\nMethod: ");
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message += (server.method() == HTTP_GET) ? F("GET") : F("POST");
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message += F("\nArguments: ");
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message += server.args();
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message += F("\n");
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for (uint8_t i = 0; i < server.args(); i++)
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{
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message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
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}
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server.send(404, F("text/plain"), message);
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}
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void setup()
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{
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out.reserve(STRING_SIZE);
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//Initialize serial and wait for port to open:
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Serial.begin(115200);
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while (!Serial && millis() < 5000);
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delay(200);
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Serial.print(F("\nStart ATWebServer_BigData on "));
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Serial.print(BOARD_NAME);
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Serial.print(F(" with "));
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Serial.println(SHIELD_TYPE);
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Serial.println(ESP8266_AT_WEBSERVER_VERSION);
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// initialize serial for ESP module
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EspSerial.begin(115200);
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// initialize ESP module
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WiFi.init(&EspSerial);
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Serial.println(F("WiFi shield init done"));
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// check for the presence of the shield
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if (WiFi.status() == WL_NO_SHIELD)
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{
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Serial.println(F("WiFi shield not present"));
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// don't continue
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while (true);
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}
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// attempt to connect to WiFi network
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while ( status != WL_CONNECTED)
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{
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Serial.print(F("Connecting to WPA SSID: "));
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Serial.println(ssid);
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// Connect to WPA/WPA2 network
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status = WiFi.begin(ssid, pass);
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}
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server.on(F("/"), handleRoot);
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server.on(F("/inline"), []()
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{
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server.send(200, F("text/plain"), F("This works as well"));
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});
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server.onNotFound(handleNotFound);
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server.begin();
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Serial.print(F("HTTP server started @ "));
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Serial.print(WiFi.localIP());
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Serial.print(F(", Port = "));
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Serial.println(WEBSERVER_PORT);
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}
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void loop()
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{
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server.handleClient();
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}

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