|
| 1 | +/* |
| 2 | + Web Server |
| 3 | +
|
| 4 | + A simple web server that shows the value of the analog input pins. |
| 5 | + using PortentaBreakout. |
| 6 | +
|
| 7 | + Circuit: |
| 8 | + * PortetaBreakout |
| 9 | +
|
| 10 | + created 18 Dec 2009 |
| 11 | + by David A. Mellis |
| 12 | + modified 9 Apr 2012 |
| 13 | + by Tom Igoe |
| 14 | + modified 02 Sept 2015 |
| 15 | + by Arturo Guadalupi |
| 16 | + |
| 17 | + */ |
| 18 | + |
| 19 | +#include <PortentaBreakoutCarrier.h> |
| 20 | + |
| 21 | +// Enter a MAC address and IP address for your controller below. |
| 22 | +// The IP address will be dependent on your local network: |
| 23 | +byte mac[] = { |
| 24 | + 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED |
| 25 | +}; |
| 26 | +IPAddress ip(192, 168, 1, 177); |
| 27 | + |
| 28 | +// Initialize the Ethernet server library |
| 29 | +// with the IP address and port you want to use |
| 30 | +// (port 80 is default for HTTP): |
| 31 | +EthernetServer server(80); |
| 32 | + |
| 33 | +// PortentaBreakout analogPin table |
| 34 | +breakoutPin analogPin[] = {ANALOG_A0, ANALOG_A0, ANALOG_A2, ANALOG_A3, |
| 35 | + ANALOG_A4, ANALOG_A5, ANALOG_A6, ANALOG_A7}; |
| 36 | + |
| 37 | +void setup() { |
| 38 | + |
| 39 | + // Open serial communications and wait for port to open: |
| 40 | + Serial.begin(9600); |
| 41 | + while (!Serial) { |
| 42 | + ; // wait for serial port to connect. Needed for native USB port only |
| 43 | + } |
| 44 | + Serial.println("Ethernet WebServer Example"); |
| 45 | + |
| 46 | + // start the Ethernet connection and the server: |
| 47 | + Breakout.Ethernet.begin(mac); |
| 48 | + |
| 49 | + // Check for Ethernet hardware present |
| 50 | + if (Breakout.Ethernet.hardwareStatus() == EthernetNoHardware) { |
| 51 | + Serial.println("Ethernet shield was not found. Sorry, can't run without hardware. :("); |
| 52 | + while (true) { |
| 53 | + delay(1); // do nothing, no point running without Ethernet hardware |
| 54 | + } |
| 55 | + } |
| 56 | + if (Breakout.Ethernet.linkStatus() == LinkOFF) { |
| 57 | + Serial.println("Ethernet cable is not connected."); |
| 58 | + } |
| 59 | + |
| 60 | + // start the server |
| 61 | + server.begin(); |
| 62 | + Serial.print("server is at "); |
| 63 | + Serial.println(Breakout.Ethernet.localIP()); |
| 64 | +} |
| 65 | + |
| 66 | + |
| 67 | +void loop() { |
| 68 | + // listen for incoming clients |
| 69 | + EthernetClient client = server.available(); |
| 70 | + if (client) { |
| 71 | + Serial.println("new client"); |
| 72 | + // an http request ends with a blank line |
| 73 | + boolean currentLineIsBlank = true; |
| 74 | + while (client.connected()) { |
| 75 | + if (client.available()) { |
| 76 | + char c = client.read(); |
| 77 | + Serial.write(c); |
| 78 | + // if you've gotten to the end of the line (received a newline |
| 79 | + // character) and the line is blank, the http request has ended, |
| 80 | + // so you can send a reply |
| 81 | + if (c == '\n' && currentLineIsBlank) { |
| 82 | + // send a standard http response header |
| 83 | + client.println("HTTP/1.1 200 OK"); |
| 84 | + client.println("Content-Type: text/html"); |
| 85 | + client.println("Connection: close"); // the connection will be closed after completion of the response |
| 86 | + client.println("Refresh: 5"); // refresh the page automatically every 5 sec |
| 87 | + client.println(); |
| 88 | + client.println("<!DOCTYPE HTML>"); |
| 89 | + client.println("<html>"); |
| 90 | + // output the value of each analog input pin |
| 91 | + for (int analogChannel = 0; analogChannel < 8; analogChannel++) { |
| 92 | + int sensorReading = Breakout.analogRead(analogPin[analogChannel]); |
| 93 | + Serial.println(SYSCFG->PMCR); |
| 94 | + client.print("analog input "); |
| 95 | + client.print(analogChannel); |
| 96 | + client.print(" is "); |
| 97 | + client.print(sensorReading); |
| 98 | + client.println("<br />"); |
| 99 | + } |
| 100 | + client.println("</html>"); |
| 101 | + break; |
| 102 | + } |
| 103 | + if (c == '\n') { |
| 104 | + // you're starting a new line |
| 105 | + currentLineIsBlank = true; |
| 106 | + } else if (c != '\r') { |
| 107 | + // you've gotten a character on the current line |
| 108 | + currentLineIsBlank = false; |
| 109 | + } |
| 110 | + } |
| 111 | + } |
| 112 | + // give the web browser time to receive the data |
| 113 | + delay(1); |
| 114 | + // close the connection: |
| 115 | + client.stop(); |
| 116 | + Serial.println("client disconnected"); |
| 117 | + } |
| 118 | +} |
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