WiFi and the Raspberry Pi

01 #include <ESP8266WiFi.h>
02 #include <WiFiClient.h>
03 #include <ESP8266WebServer.h>
04 #include <ESP8266mDNS.h>
05
06 const char* ssid = "........";
07 const char* password = "........";
08 MDNSResponder mdns;
09
10 ESP8266WebServer server(80);
11
12 const int led = 13;
13
14 void handleRoot() {
15   digitalWrite(led, 1);
16   server.send(200, "text/plain", "hello from esp8266!");
17   digitalWrite(led, 0);
18 }
19
20 void handleNotFound(){
21   digitalWrite(led, 1);
22   String message = "File Not Found\n\n";
23   message += "URI: ";
24   message += server.uri();
25   message += "\nMethod: ";
26   message += (server.method() == HTTP_GET)?"GET":"POST";
27   message += "\nArguments: ";
28   message += server.args();
29   message += "\n";
30   for (uint8_t i=0; i<server.args(); i++){
31     message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
32   }
33   server.send(404, "text/plain", message);
34   digitalWrite(led, 0);
35 }
36
37 void setup(void){
38   pinMode(led, OUTPUT);
39   digitalWrite(led, 0);
40   Serial.begin(115200);
41   Serial.println("ESP8266 Webserver Start");
42   WiFi.begin(ssid, password);
43   Serial.println("");
44
45   // Wait for connection
46   while (WiFi.status() != WL_CONNECTED) {
47     delay(500);
48     Serial.print(".");
49   }
50   Serial.println("");
51   Serial.print("Connected to ");
52   Serial.println(ssid);
53   Serial.print("IP address: ");
54   Serial.println(WiFi.localIP());
55
56   if (mdns.begin("esp8266", WiFi.localIP())) {
57     Serial.println("MDNS responder started");
58   }
59
60   server.on("/", handleRoot);
61
62   server.on("/inline", [](){
63     server.send(200, "text/plain", "this works as well");
64   });
65
66   server.onNotFound(handleNotFound);
67
68   server.begin();
69   Serial.println("HTTP server started");
70 }
71
72 void loop(void){
73   server.handleClient();
74 }