// // FILE: XMLWriterEthernet.ino // AUTHOR: Rob Tillaart // VERSION: 0.1.0 // PURPOSE: demo XML writer for EthernetClient // DATE: 2020-04-24 // URL: // #include #include #include byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; IPAddress ip( 192, 168, 1, 177); const int EthernetPIN = 10; EthernetServer server(80); // change to your config char httpRequest[40]; uint8_t reqCnt; //////////////////////////////////////////////////////////////////// // // HTTP HELPER CODE // void HTTP_header(EthernetClient* cl, const char *contentType, bool keepAlive = false, int refresh = 5) { cl->println("HTTP/1.1 200 OK"); cl->print("Content-Type: "); cl->println( contentType ); cl->println("Connection: "); cl->println(keepAlive ? "keep-alive":"close"); cl->println("Refresh: "); cl->println(refresh); cl->println(); } //////////////////////////////////////////////////////////////////// // // Based upon webServer example demo // void setup() { Serial.begin(115200); Serial.println(__FILE__); // Ethernet.init(pin) to configure the CS pin Ethernet.init(EthernetPIN); Ethernet.begin(mac, ip); if (Ethernet.hardwareStatus() == EthernetNoHardware) { Serial.println("No hardware found"); while (1); } if (Ethernet.linkStatus() == LinkOFF) { Serial.println("Cable is not connected."); Serial.println("Connect cable"); } while (Ethernet.linkStatus() == LinkOFF); // wait for cable server.begin(); Serial.print("ServerIP: "); Serial.println(Ethernet.localIP()); } void loop() { // listen for incoming clients EthernetClient client = server.available(); if (client) { Serial.print("\n\n "); // an http request ends with a blank line boolean currentLineIsBlank = true; reqCnt = 0; while (client.connected()) { if (client.available()) { char c = client.read(); Serial.write(c); // collect HHTP request here.. if (reqCnt < 39) { httpRequest[reqCnt++] = c; httpRequest[reqCnt] = 0; } // if you've gotten to the end of the line (received a newline // character) and the line is blank, the http request has ended, // so you can send a reply if (c == '\n' && currentLineIsBlank) { if (strstr(httpRequest, "1.xml")) { // send a standard http response header HTTP_header(&client, "text/xml", true, 5); XMLWriter XML(&client); // XML body XML.header(); XML.comment("XMLWriterTest.ino\nThis is a demo of a simple XML lib for Arduino", true); // use of {} to get indentation that follows the XML (sort of) // it adds no code size, but improves readability a lot XML.tagOpen("Arduino", "42"); { XML.tagOpen("Ports"); { AnalogPorts(XML, "before"); DigitalPorts(XML); AnalogPorts(XML,"after"); } XML.tagClose(); } XML.tagClose(); break; } if (strstr(httpRequest, "2.xml")) { // send a standard http response header HTTP_header(&client, "text/xml", true, 5); XMLWriter XML(&client); // XML body XML.header(); XML.comment("XMLWriterTest.ino\nThis is a demo of a simple XML lib for Arduino", true); // use of {} to get indentation that follows the XML (sort of) // it adds no code size, but improves readability a lot XML.tagOpen("Arduino", "102"); { Weather(XML); Weather2(XML); DataTypes(XML); } XML.tagClose(); break; } // default page is simple HTML // send a standard http response header HTTP_header(&client, "text/html", true, 5); client.println(""); client.println(""); client.println(""); client.println("Demo XML writer"); client.println(""); client.println(""); client.println("

Demo XML writer for EthernetClient

"); client.println("

Get XML 1.

"); client.println("

Get XML 2.

"); client.println(""); client.println(""); break; } if (c == '\n') { Serial.print(" "); // you're starting a new line currentLineIsBlank = true; } else if (c != '\r') { // you've gotten a character on the current line currentLineIsBlank = false; } } } // give the web browser time to receive the data delay(1); client.stop(); Serial.println(""); } } //////////////////////////////////////////////////////////////////// // // XML CODE // void Weather2(XMLWriter xw) { xw.comment("The weather in South Africa"); for (int i = 0; i < 10; i++) { xw.tagStart("Weather"); xw.tagField("Date", "20131106"); xw.tagField("Time", "1:42"); xw.tagField("Temp", "23.4"); xw.tagField("Humi", "50%"); xw.tagField("Rain", "10mm"); xw.tagField("Sun", "40"); xw.tagEnd(); } } void Weather(XMLWriter xw) { xw.comment("The weather in Nebraska"); xw.tagOpen("Weather"); xw.writeNode("Date", "20131106"); xw.writeNode("Time", "11:42"); xw.writeNode("Temp", "23.4"); xw.writeNode("Humi", "50%"); xw.writeNode("Rain", "10mm"); xw.writeNode("Sun", "40"); xw.tagClose(); } void AnalogPorts(XMLWriter xw, const char* name) { char buffer[24]; xw.comment("The analog ports are multiplexed"); xw.tagOpen("Analog", name); xw.writeNode("Analog0", itoa(analogRead(A0), buffer, 10)); xw.writeNode("Analog1", analogRead(A1)); xw.writeNode("Analog2", (5.0 * analogRead(A2)) / 1023); // default nr decimals = 2 xw.writeNode("Analog3", (5.0 * analogRead(A2)) / 1023, 3); xw.tagClose(); } void DigitalPorts(XMLWriter xw) { char buffer[24]; xw.comment("The digital ports are not multiplexed"); xw.tagOpen("Digital"); xw.writeNode("D1", itoa(digitalRead(1), buffer, 10)); xw.writeNode("D13", digitalRead(13)); xw.tagClose(); } void DataTypes(XMLWriter xw) { xw.comment("Testing dataTypes I"); xw.tagOpen("Datatypes"); xw.writeNode("BoolT", 1 == 1); xw.writeNode("BoolF", 1 == 0); xw.writeNode("BIN", 42, BIN); xw.writeNode("DEC", 42, DEC); xw.writeNode("HEX", 42, HEX); xw.writeNode("OCT", 42, OCT); xw.tagClose(); xw.comment("Testing dataTypes II"); for (int i = 0; i < 3; i++) { xw.tagStart("dataTypes"); xw.tagField("BoolT", 1 == 1); xw.tagField("BoolF", 1 == 0); int x = analogRead(A0); xw.tagField("BIN", x, BIN); xw.tagField("DEC", x, DEC); xw.tagField("HEX", x, HEX); xw.tagField("OCT", x, OCT); xw.tagEnd(); } } // -- END OF FILE --