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WebClient_ESP.ino
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WebClient_ESP.ino
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/****************************************************************************************************************************
WebClient_ESP.ino - Simple Arduino web server sample for Ethernet shield
EthernetWebServer is a library for the Ethernet shields to run WebServer
Based on and modified from ESP8266 https://github.com/esp8266/Arduino/releases
Built by Khoi Hoang https://github.com/khoih-prog/EthernetWebServer
Licensed under MIT license
*****************************************************************************************************************************/
// Important: For ESP32, check https://github.com/khoih-prog/EthernetWebServer#7-for-fixing-esp32-compile-error
// and replace cores/esp32/Server.h to avoid compile error
#include "defines.h"
char server[] = "arduino.tips";
// Initialize the Ethernet client object
EthernetClient client;
void setup()
{
Serial.begin(115200);
while (!Serial);
delay(200);
Serial.print("\nStarting WebClient_ESP on " + String(ARDUINO_BOARD));
Serial.println(" with " + String(SHIELD_TYPE));
Serial.println(ETHERNET_WEBSERVER_VERSION);
#if USE_ETHERNET_GENERIC
ET_LOGWARN(F("=========== USE_ETHERNET_GENERIC ==========="));
#elif USE_ETHERNET_ESP8266
ET_LOGWARN(F("=========== USE_ETHERNET_ESP8266 ==========="));
#elif USE_ETHERNET_ENC
ET_LOGWARN(F("=========== USE_ETHERNET_ENC ==========="));
#else
ET_LOGWARN(F("========================="));
#endif
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 defined(ESP8266)
// For ESP8266, change for other boards if necessary
#ifndef USE_THIS_SS_PIN
#define USE_THIS_SS_PIN D2 // For ESP8266
#endif
ET_LOGWARN1(F("ESP8266 setCsPin:"), USE_THIS_SS_PIN);
#if ( USE_ETHERNET_GENERIC || USE_ETHERNET_ENC )
// For ESP8266
// Pin D0(GPIO16) D1(GPIO5) D2(GPIO4) D3(GPIO0) D4(GPIO2) D8
// Ethernet 0 X X X X 0
// Ethernet2 X X X X X 0
// Ethernet3 X X X X X 0
// EthernetLarge X X X X X 0
// Ethernet_ESP8266 0 0 0 0 0 0
// D2 is safe to used for Ethernet, Ethernet2, Ethernet3, EthernetLarge libs
// Must use library patch for Ethernet, EthernetLarge libraries
Ethernet.init (USE_THIS_SS_PIN);
#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_GENERIC || USE_ETHERNET_ENC )
#elif defined(ESP32)
// You can use Ethernet.init(pin) to configure the CS pin
//Ethernet.init(10); // Most Arduino shields
//Ethernet.init(5); // MKR ETH shield
//Ethernet.init(0); // Teensy 2.0
//Ethernet.init(20); // Teensy++ 2.0
//Ethernet.init(15); // ESP8266 with Adafruit Featherwing Ethernet
//Ethernet.init(33); // ESP32 with Adafruit Featherwing Ethernet
#ifndef USE_THIS_SS_PIN
#define USE_THIS_SS_PIN 5 //22 // For ESP32
#endif
ET_LOGWARN1(F("ESP32 setCsPin:"), USE_THIS_SS_PIN);
// For other boards, to change if necessary
#if ( USE_ETHERNET_GENERIC || USE_ETHERNET_ENC )
// Must use library patch for Ethernet, EthernetLarge libraries
// ESP32 => GPIO2,4,5,13,15,21,22 OK with Ethernet, Ethernet2, EthernetLarge
// ESP32 => GPIO2,4,5,15,21,22 OK with Ethernet3
//Ethernet.setCsPin (USE_THIS_SS_PIN);
Ethernet.init (USE_THIS_SS_PIN);
#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_GENERIC || USE_ETHERNET_ENC )
#endif //defined(ESP8266)
// 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]);
// Just info to know how to connect correctly
Serial.println("=========================");
Serial.println("Currently Used SPI pinout:");
#if defined(ESP32)
Serial.print("MOSI:");
Serial.println(PIN_MOSI);
Serial.print("MISO:");
Serial.println(PIN_MISO);
Serial.print("SCK:");
Serial.println(PIN_SCK);
#else
Serial.print("SS:");
Serial.print("MOSI:");
Serial.println(MOSI);
Serial.print("MISO:");
Serial.println(MISO);
Serial.print("SCK:");
Serial.println(SCK);
#endif
Serial.print("CS/SS:");
Serial.println(USE_THIS_SS_PIN);
Serial.println(F("========================="));
Serial.print(F("Using mac index = "));
Serial.println(index);
Serial.print(F("Connected! IP address: "));
Serial.println(Ethernet.localIP());
Serial.println();
Serial.println(F("Starting connection to server..."));
// if you get a connection, report back via serial
if (client.connect(server, 80))
{
Serial.println(F("Connected to server"));
// Make a HTTP request
client.println(F("GET /asciilogo.txt HTTP/1.1"));
client.println(F("Host: arduino.tips"));
client.println(F("Connection: close"));
client.println();
}
}
void printoutData()
{
// if there are incoming bytes available
// from the server, read them and print them
while (client.available())
{
char c = client.read();
Serial.write(c);
Serial.flush();
}
}
void loop()
{
printoutData();
// if the server's disconnected, stop the client
if (!client.connected())
{
Serial.println();
Serial.println(F("Disconnecting from server..."));
client.stop();
// do nothing forevermore
while (true)
yield();
}
}