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AdvancedWebServer.ino
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/****************************************************************************************************************************
AdvancedWebServer.h - Dead simple web-server for Ethernet shields
For STM32 with built-in Ethernet (Nucleo-144, DISCOVERY, etc) or W5x00/ENC28J60 Ethernet
EthernetWebServer_STM32 is a library for the STM32 run built-in Ethernet WebServer
Based on and modified from ESP8266 https://github.com/esp8266/Arduino/releases
Built by Khoi Hoang https://github.com/khoih-prog/EthernetWebServer_STM32
Licensed under MIT license
Copyright (c) 2015, Majenko Technologies
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this
list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.
Neither the name of Majenko Technologies nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Version: 1.0.5
Version Modified By Date Comments
------- ----------- ---------- -----------
1.0.0 K Hoang 26/02/2020 Initial coding for STM32 with built-in Ethernet (Nucleo-144, DISCOVERY, etc) and ENC28J60
1.0.1 K Hoang 28/02/2020 Add W5x00 Ethernet shields using Ethernet library
1.0.2 K Hoang 05/03/2020 Remove dependency on functional-vlpp
1.0.3 K Hoang 22/07/2020 Fix bug not closing client and releasing socket. Add features.
1.0.4 K Hoang 23/07/2020 Add support to all STM32 boards (STM32F/L/H/G/WB/MP1) with 32K+ Flash.
1.0.5 K Hoang 16/09/2020 Add support to Ethernet2, Ethernet3, Ethernet Large for W5x00
Add support to new EthernetENC library for ENC28J60. Add debug feature.
*****************************************************************************************************************************/
/*
Currently support
1) STM32 boards with built-in Ethernet (to use USE_BUILTIN_ETHERNET = true) such as :
- Nucleo-144 (F429ZI, F767ZI)
- Discovery (STM32F746G-DISCOVERY)
- STM32 boards (STM32F/L/H/G/WB/MP1) with 32K+ Flash, with Built-in Ethernet,
- See How To Use Built-in Ethernet at (https://github.com/khoih-prog/EthernetWebServer_STM32/issues/1)
2) STM32F/L/H/G/WB/MP1 boards (with 32+K Flash) running ENC28J60 shields (to use USE_BUILTIN_ETHERNET = false)
3) STM32F/L/H/G/WB/MP1 boards (with 32+K Flash) running W5x00 shields
*/
#include "defines.h"
EthernetWebServer server(80);
const int led = 13;
void handleRoot()
{
digitalWrite(led, 1);
#define BUFFER_SIZE 400
char temp[BUFFER_SIZE];
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>AdvancedWebServer %s</title>\
<style>\
body { background-color: #cccccc; font-family: Arial, Helvetica, Sans-Serif; Color: #000088; }\
</style>\
</head>\
<body>\
<h2>Hi from EthernetWebServer!</h2>\
<h3>on %s</h3>\
<p>Uptime: %d d %02d:%02d:%02d</p>\
<img src=\"/test.svg\" />\
</body>\
</html>", BOARD_NAME, BOARD_NAME, day, hr % 24, min % 60, sec % 60);
server.send(200, "text/html", temp);
digitalWrite(led, 0);
}
void handleNotFound()
{
digitalWrite(led, 1);
String message = "File Not Found\n\n";
message += "URI: ";
message += server.uri();
message += "\nMethod: ";
message += (server.method() == HTTP_GET) ? "GET" : "POST";
message += "\nArguments: ";
message += server.args();
message += "\n";
for (uint8_t i = 0; i < server.args(); i++)
{
message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
}
server.send(404, "text/plain", message);
digitalWrite(led, 0);
}
void drawGraph()
{
String out;
out.reserve(3000);
char temp[70];
out += "<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\" width=\"310\" height=\"150\">\n";
out += "<rect width=\"310\" height=\"150\" fill=\"rgb(250, 230, 210)\" stroke-width=\"1\" stroke=\"rgb(0, 0, 0)\" />\n";
out += "<g stroke=\"black\">\n";
int y = rand() % 130;
for (int x = 10; x < 300; x += 10)
{
int y2 = rand() % 130;
sprintf(temp, "<line x1=\"%d\" y1=\"%d\" x2=\"%d\" y2=\"%d\" stroke-width=\"1\" />\n", x, 140 - y, x + 10, 140 - y2);
out += temp;
y = y2;
}
out += "</g>\n</svg>\n";
server.send(200, "image/svg+xml", out);
}
void setup(void)
{
pinMode(led, OUTPUT);
digitalWrite(led, 0);
Serial.begin(115200);
Serial.println("\nStart AdvancedWebServer on " + String(BOARD_NAME) + ", using " + String(SHIELD_TYPE));
ET_LOGWARN3(F("Board :"), BOARD_NAME, F(", setCsPin:"), USE_THIS_SS_PIN);
ET_LOGWARN(F("Default SPI pinout:"));
ET_LOGWARN1(F("MOSI:"), MOSI);
ET_LOGWARN1(F("MISO:"), MISO);
ET_LOGWARN1(F("SCK:"), SCK);
ET_LOGWARN1(F("SS:"), SS);
ET_LOGWARN(F("========================="));
#if !(USE_BUILTIN_ETHERNET || USE_UIP_ETHERNET)
// For other boards, to change if necessary
#if ( USE_ETHERNET || USE_ETHERNET_LARGE || USE_ETHERNET2 || USE_ETHERNET_ENC )
// Must use library patch for Ethernet, Ethernet2, EthernetLarge libraries
Ethernet.init (USE_THIS_SS_PIN);
#elif USE_ETHERNET3
// Use MAX_SOCK_NUM = 4 for 4K, 2 for 8K, 1 for 16K RX/TX buffer
#ifndef ETHERNET3_MAX_SOCK_NUM
#define ETHERNET3_MAX_SOCK_NUM 4
#endif
Ethernet.setCsPin (USE_THIS_SS_PIN);
Ethernet.init (ETHERNET3_MAX_SOCK_NUM);
#elif USE_CUSTOM_ETHERNET
// You have to add initialization for your Custom Ethernet here
// This is just an example to setCSPin to USE_THIS_SS_PIN, and can be not correct and enough
//Ethernet.init(USE_THIS_SS_PIN);
#endif //( ( USE_ETHERNET || USE_ETHERNET_LARGE || USE_ETHERNET2 || USE_ETHERNET_ENC )
#endif
// start the ethernet connection and the server:
// Use DHCP dynamic IP and random mac
uint16_t index = millis() % NUMBER_OF_MAC;
// Use Static IP
//Ethernet.begin(mac[index], ip);
Ethernet.begin(mac[index]);
server.on("/", handleRoot);
server.on("/test.svg", drawGraph);
server.on("/inline", []()
{
server.send(200, "text/plain", "This works as well");
});
server.onNotFound(handleNotFound);
server.begin();
Serial.print(F("HTTP EthernetWebServer is @ IP : "));
Serial.println(Ethernet.localIP());
}
void loop(void)
{
server.handleClient();
}