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https://github.com/esp8266/Arduino.git
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51c2a1437b
This commit adds W5500 W5100 and ENC28j60 drivers from @njh with credits They are available in libraries/ An example is added in W5500 examples directory plus: * Extract dhcp server from lwip2 and add it to the core as a class. It must always be present, it is linked and can be called by fw on boot. So it cannot be stored in a library. * ethernet: static or dhcp works * PPPServer: example * bring WiFi.config() to the lwIP generic interface (argument reorder common function) * move hostname() from WiFI-STA to generic interface * remove non readable characters from dhcp-server comments * dhcp-server: magic_cookie is part of bootp rfc * fixes from https://github.com/d-a-v/W5500lwIP/issues/17 * enable lwip_hook_dhcp_parse_option() * +ethernet tcp client example in w5500 library examples
103 lines
2.4 KiB
C++
103 lines
2.4 KiB
C++
/*
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This sketch establishes a TCP connection to a "quote of the day" service.
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It sends a "hello" message, and then prints received data.
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*/
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#include <SPI.h>
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#include <W5500lwIP.h>
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//or #include <W5100lwIP.h>
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//or #include <ENC28J60lwIP.h>
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#include <WiFiClient.h> // WiFiClient (-> TCPClient)
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#include <ESP8266WiFi.h> // ESP8266WiFiClass::preinitWiFiOff()
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const char* host = "djxmmx.net";
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const uint16_t port = 17;
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using TCPClient = WiFiClient;
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#define CSPIN 16 // wemos/lolin/nodemcu D0
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Wiznet5500lwIP eth(CSPIN);
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void preinit() {
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// (no C++ in function)
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// disable wifi
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ESP8266WiFiClass::preinitWiFiOff();
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}
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void setup() {
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Serial.begin(115200);
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SPI.begin();
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SPI.setClockDivider(SPI_CLOCK_DIV4); // 4 MHz?
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SPI.setBitOrder(MSBFIRST);
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SPI.setDataMode(SPI_MODE0);
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eth.setDefault(); // use ethernet for default route
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if (!eth.begin()) {
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Serial.println("ethernet hardware not found ... sleeping");
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while (1) {
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delay(1000);
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}
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} else {
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Serial.print("connecting ethernet");
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while (!eth.connected()) {
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Serial.print(".");
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delay(1000);
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}
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}
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Serial.println();
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Serial.print("ethernet IP address: ");
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Serial.println(eth.localIP());
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}
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void loop() {
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static bool wait = false;
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Serial.print("connecting to ");
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Serial.print(host);
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Serial.print(':');
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Serial.println(port);
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TCPClient client;
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if (!client.connect(host, port)) {
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Serial.println("connection failed");
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delay(5000);
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return;
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}
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// This will send a string to the server
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Serial.println("sending data to server");
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if (client.connected()) {
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client.println("hello from ESP8266");
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}
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// wait for data to be available
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unsigned long timeout = millis();
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while (client.available() == 0) {
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if (millis() - timeout > 5000) {
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Serial.println(">>> Client Timeout !");
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client.stop();
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delay(60000);
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return;
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}
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}
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// Read all the lines of the reply from server and print them to Serial
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Serial.println("receiving from remote server");
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// not testing 'client.connected()' since we do not need to send data here
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while (client.available()) {
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char ch = static_cast<char>(client.read());
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Serial.print(ch);
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}
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// Close the connection
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Serial.println();
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Serial.println("closing connection");
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client.stop();
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if (wait) {
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delay(300000); // execute once every 5 minutes, don't flood remote service
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}
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wait = true;
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}
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