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- /*
- WiFiEsp example: WebServer
- A simple web server that shows the value of the analog input
- pins via a web page using an ESP8266 module.
- This sketch will print the IP address of your ESP8266 module (once connected)
- to the Serial monitor. From there, you can open that address in a web browser
- to display the web page.
- The web page will be automatically refreshed each 20 seconds.
- For more details see: http://yaab-arduino.blogspot.com/p/wifiesp.html
- */
- #include "WiFiEsp.h"
- // Emulate Serial1 on pins 6/7 if not present
- #ifndef HAVE_HWSERIAL1
- #include "SoftwareSerial.h"
- SoftwareSerial Serial1(6, 7); // RX, TX
- #endif
- char ssid[] = "Twim"; // your network SSID (name)
- char pass[] = "12345678"; // your network password
- int status = WL_IDLE_STATUS; // the Wifi radio's status
- int reqCount = 0; // number of requests received
- WiFiEspServer server(80);
- void setup()
- {
- // initialize serial for debugging
- Serial.begin(115200);
- // initialize serial for ESP module
- Serial1.begin(9600);
- // initialize ESP module
- WiFi.init(&Serial1);
- // check for the presence of the shield
- if (WiFi.status() == WL_NO_SHIELD) {
- Serial.println("WiFi shield not present");
- // don't continue
- while (true);
- }
- // attempt to connect to WiFi network
- while ( status != WL_CONNECTED) {
- Serial.print("Attempting to connect to WPA SSID: ");
- Serial.println(ssid);
- // Connect to WPA/WPA2 network
- status = WiFi.begin(ssid, pass);
- }
- Serial.println("You're connected to the network");
- printWifiStatus();
-
- // start the web server on port 80
- server.begin();
- }
- void loop()
- {
- // listen for incoming clients
- WiFiEspClient client = server.available();
- if (client) {
- Serial.println("New client");
- // an http request ends with a blank line
- boolean currentLineIsBlank = true;
- while (client.connected()) {
- if (client.available()) {
- char c = client.read();
- Serial.write(c);
- // 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) {
- Serial.println("Sending response");
-
- // send a standard http response header
- // use \r\n instead of many println statements to speedup data send
- client.print(
- "HTTP/1.1 200 OK\r\n"
- "Content-Type: text/html\r\n"
- "Connection: close\r\n" // the connection will be closed after completion of the response
- "Refresh: 20\r\n" // refresh the page automatically every 20 sec
- "\r\n");
- client.print("<!DOCTYPE HTML>\r\n");
- client.print("<html>\r\n");
- client.print("<h1>Hello World!</h1>\r\n");
- client.print("Requests received: ");
- client.print(++reqCount);
- client.print("<br>\r\n");
- client.print("Analog input A0: ");
- client.print(analogRead(0));
- client.print("<br>\r\n");
- client.print("</html>\r\n");
- break;
- }
- if (c == '\n') {
- // 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(10);
- // close the connection:
- client.stop();
- Serial.println("Client disconnected");
- }
- }
- void printWifiStatus()
- {
- // print the SSID of the network you're attached to
- Serial.print("SSID: ");
- Serial.println(WiFi.SSID());
- // print your WiFi shield's IP address
- IPAddress ip = WiFi.localIP();
- Serial.print("IP Address: ");
- Serial.println(ip);
-
- // print where to go in the browser
- Serial.println();
- Serial.print("To see this page in action, open a browser to http://");
- Serial.println(ip);
- Serial.println();
- }
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