WeMOS Simpel Server
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| WeMOS WiFi Processor | |
|---|---|
| WeMOS | Server Connection - Simpel Server - Flere SSID - ESP8266 - Watchdog - Interrupt |
| Anvendelse | LED-eksempel - AD-eksempel - Mail - POST metode - Web Publicering |
Dette eksempel tager udgangspunkt i et eksempel fundet ved esp8266learning.com[1].
Formålet er at reducere koden, så den viser det helt basale.
Samlet kode
#include <ESP8266WiFi.h>
const char* ssid = "ssid name";
const char* password = "ssid password";
WiFiServer server(80);
void setup() {
Serial.begin(115200);
delay(10);
// Connect to WiFi network
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
// Start the server
server.begin();
// Print the IP address
Serial.print("Use this URL : ");
Serial.print("http://");
Serial.print(WiFi.localIP());
Serial.println("/");
}
void loop() {
// Check if a client has connected
WiFiClient client = server.available();
if (!client) {
return;
}
// Wait until the client sends some data
Serial.println("new client");
while(!client.available()){
delay(1);
}
// Read the first line of the request
String request = client.readStringUntil('\r');
client.flush();
// Return the response
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println(""); // do not forget this one
client.println("<!DOCTYPE HTML>");
client.println("<html>");
client.println("<h1>Hello World</h1>");
client.println("</html>");
delay(1);
}Server Connection
Som beskrevet i WeMOS Server Connection forbindes til Wifi og der sættes en server op. Det er primært i setup() det sker:
void setup() {
Serial.begin(115200);
delay(10);
// Connect to WiFi network
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
// Start the server
server.begin();
// Print the IP address
Serial.print("Use this URL : ");
Serial.print("http://");
Serial.print(WiFi.localIP());
Serial.println("/");
}Connection response
Der registreres i loop() om der kommer en henvendelse, og hvis der gør, så sendes en simpel respons, der består af "Hello World" i et H1-tag:
void loop() {
// Check if a client has connected
WiFiClient client = server.available();
if (!client) {
return;
}
// Wait until the client sends some data
Serial.println("new client");
while(!client.available()){
delay(1);
}
// Read the first line of the request
String request = client.readStringUntil('\r');
client.flush();
// Return the response
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println(""); // do not forget this one
client.println("<!DOCTYPE HTML>");
client.println("<html>");
client.println("<h1>Hello World</h1>");
client.println("</html>");
delay(1);
}