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AsyncWebServer_SendChunked.ino
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AsyncWebServer_SendChunked.ino
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/****************************************************************************************************************************
AsyncWebServer_SendChunked.ino
For W5500 LwIP Ethernet in ESP32 (ESP32 + W5500)
AsyncWebServer_ESP32_W5500 is a library for the LwIP Ethernet W5500 in ESP32 to run AsyncWebServer
Based on and modified from ESPAsyncWebServer (https://github.com/me-no-dev/ESPAsyncWebServer)
Built by Khoi Hoang https://github.com/khoih-prog/AsyncWebServer_ESP32_W5500
Licensed under GPLv3 license
*****************************************************************************************************************************/
#if !( defined(ESP32) )
#error This code is designed for (ESP32 + W5500) to run on ESP32 platform! Please check your Tools->Board setting.
#endif
#include <Arduino.h>
#define _ASYNC_WEBSERVER_LOGLEVEL_ 4
// Enter a MAC address and IP address for your controller below.
#define NUMBER_OF_MAC 20
byte mac[][NUMBER_OF_MAC] =
{
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0x01 },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xBE, 0x02 },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0x03 },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xBE, 0x04 },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0x05 },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xBE, 0x06 },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0x07 },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xBE, 0x08 },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0x09 },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xBE, 0x0A },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0x0B },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xBE, 0x0C },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0x0D },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xBE, 0x0E },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0x0F },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xBE, 0x10 },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0x11 },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xBE, 0x12 },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0x13 },
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xBE, 0x14 },
};
// Select the IP address according to your local network
IPAddress myIP(192, 168, 2, 232);
IPAddress myGW(192, 168, 2, 1);
IPAddress mySN(255, 255, 255, 0);
// Google DNS Server IP
IPAddress myDNS(8, 8, 8, 8);
//////////////////////////////////////////////////////////
// Optional values to override default settings
// Don't change unless you know what you're doing
//#define ETH_SPI_HOST SPI3_HOST
//#define SPI_CLOCK_MHZ 25
// Must connect INT to GPIOxx or not working
//#define INT_GPIO 4
//#define MISO_GPIO 19
//#define MOSI_GPIO 23
//#define SCK_GPIO 18
//#define CS_GPIO 5
//////////////////////////////////////////////////////////
#include <AsyncTCP.h>
#include <AsyncWebServer_ESP32_W5500.h>
// In bytes
#define STRING_SIZE 50000
AsyncWebServer server(80);
int reqCount = 0; // number of requests received
#define BUFFER_SIZE 512
char temp[BUFFER_SIZE];
void createPage(String &pageInput)
{
int sec = millis() / 1000;
int min = sec / 60;
int hr = min / 60;
int day = hr / 24;
snprintf(temp, BUFFER_SIZE - 1,
"<html>\
<head>\
<meta http-equiv='refresh' content='5'/>\
<title>AsyncWebServer-%s</title>\
<style>\
body { background-color: #cccccc; font-family: Arial, Helvetica, Sans-Serif; Color: #000088; }\
</style>\
</head>\
<body>\
<h2>AsyncWebServer_SendChunked_ESP32_W5500!</h2>\
<h3>running on %s</h3>\
<p>Uptime: %d d %02d:%02d:%02d</p>\
</body>\
</html>", ARDUINO_BOARD, ARDUINO_BOARD, day, hr % 24, min % 60, sec % 60);
pageInput = temp;
}
void handleNotFound(AsyncWebServerRequest *request)
{
String message = "File Not Found\n\n";
message += "URI: ";
message += request->url();
message += "\nMethod: ";
message += (request->method() == HTTP_GET) ? "GET" : "POST";
message += "\nArguments: ";
message += request->args();
message += "\n";
for (uint8_t i = 0; i < request->args(); i++)
{
message += " " + request->argName(i) + ": " + request->arg(i) + "\n";
}
request->send(404, "text/plain", message);
}
String out;
void handleRoot(AsyncWebServerRequest *request)
{
out.reserve(STRING_SIZE);
// clear the String to start over
out = String();
createPage(out);
out += "<html><body>\r\n<table><tr><th>INDEX</th><th>DATA</th></tr>";
for (uint16_t lineIndex = 0; lineIndex < 500; lineIndex++)
{
out += "<tr><td>";
out += String(lineIndex);
out += "</td><td>";
out += "ESP32_W5500_AsyncWebServer_SendChunked_ABCDEFGHIJKLMNOPQRSTUVWXYZ</td></tr>";
}
out += "</table></body></html>\r\n";
AWS_LOGDEBUG1("Total length to send in chunks =", out.length());
AsyncWebServerResponse *response = request->beginChunkedResponse("text/html", [](uint8_t *buffer, size_t maxLen,
size_t filledLength) -> size_t
{
size_t len = min(maxLen, out.length() - filledLength);
memcpy(buffer, out.c_str() + filledLength, len);
AWS_LOGDEBUG1("Bytes sent in chunk =", len);
return len;
});
request->send(response);
}
void setup()
{
Serial.begin(115200);
while (!Serial && millis() < 5000);
delay(200);
Serial.print("\nStart AsyncWebServer_SendChunked on ");
Serial.print(ARDUINO_BOARD);
Serial.print(" with ");
Serial.println(SHIELD_TYPE);
Serial.println(ASYNC_WEBSERVER_ESP32_W5500_VERSION);
AWS_LOGWARN(F("Default SPI pinout:"));
AWS_LOGWARN1(F("SPI_HOST:"), ETH_SPI_HOST);
AWS_LOGWARN1(F("MOSI:"), MOSI_GPIO);
AWS_LOGWARN1(F("MISO:"), MISO_GPIO);
AWS_LOGWARN1(F("SCK:"), SCK_GPIO);
AWS_LOGWARN1(F("CS:"), CS_GPIO);
AWS_LOGWARN1(F("INT:"), INT_GPIO);
AWS_LOGWARN1(F("SPI Clock (MHz):"), SPI_CLOCK_MHZ);
AWS_LOGWARN(F("========================="));
///////////////////////////////////
// To be called before ETH.begin()
ESP32_W5500_onEvent();
// start the ethernet connection and the server:
// Use DHCP dynamic IP and random mac
uint16_t index = millis() % NUMBER_OF_MAC;
//bool begin(int MISO_GPIO, int MOSI_GPIO, int SCLK_GPIO, int CS_GPIO, int INT_GPIO, int SPI_CLOCK_MHZ,
// int SPI_HOST, uint8_t *W5500_Mac = W5500_Default_Mac);
//ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST );
ETH.begin( MISO_GPIO, MOSI_GPIO, SCK_GPIO, CS_GPIO, INT_GPIO, SPI_CLOCK_MHZ, ETH_SPI_HOST, mac[index] );
// Static IP, leave without this line to get IP via DHCP
//bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = 0, IPAddress dns2 = 0);
//ETH.config(myIP, myGW, mySN, myDNS);
ESP32_W5500_waitForConnect();
///////////////////////////////////
server.on("/", HTTP_GET, [](AsyncWebServerRequest * request)
{
handleRoot(request);
});
server.on("/inline", [](AsyncWebServerRequest * request)
{
request->send(200, "text/plain", "This works as well");
});
server.onNotFound(handleNotFound);
server.begin();
Serial.print(F("AsyncWebServer is @ IP : "));
Serial.println(ETH.localIP());
}
void heartBeatPrint()
{
static int num = 1;
Serial.print(F("."));
if (num == 80)
{
Serial.println();
num = 1;
}
else if (num++ % 10 == 0)
{
Serial.print(F(" "));
}
}
void check_status()
{
static unsigned long checkstatus_timeout = 0;
#define STATUS_CHECK_INTERVAL 10000L
// Send status report every STATUS_REPORT_INTERVAL (60) seconds: we don't need to send updates frequently if there is no status change.
if ((millis() > checkstatus_timeout) || (checkstatus_timeout == 0))
{
heartBeatPrint();
checkstatus_timeout = millis() + STATUS_CHECK_INTERVAL;
}
}
void loop()
{
check_status();
}