Created
October 17, 2019 21:40
-
-
Save pb-uk/60caf5f50b4dddfeb7c82451b3f25242 to your computer and use it in GitHub Desktop.
SimpleWiFiServer working on an Adafruit Feather ESP32
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* | |
WiFi Web Server LED Blink | |
A simple web server that lets you blink an LED via the web. | |
This sketch will print the IP address of your WiFi Shield (once connected) | |
to the Serial monitor. From there, you can open that address in a web browser | |
to turn on and off the LED on the internal LED. | |
If the IP address of your shield is yourAddress: | |
http://yourAddress/H turns the LED on | |
http://yourAddress/L turns it off | |
This example is written for a network using WPA encryption. For | |
WEP or WPA, change the Wifi.begin() call accordingly. | |
Circuit: | |
created for arduino 25 Nov 2012 | |
by Tom Igoe | |
ported for sparkfun esp32 | |
31.01.2017 by Jan Hendrik Berlin | |
ported for Adafruit Feather ESP32 | |
2019-10-17 by PBinUK | |
*/ | |
#include <WiFi.h> | |
// The following constants are #defined in Secrets.h | |
// #define SSID "ssid" | |
// #define PASSWORD "password" | |
#include "Secrets.h" | |
WiFiServer server(80); | |
void setup() | |
{ | |
Serial.begin(115200); | |
pinMode(BUILTIN_LED, OUTPUT); // set the LED pin mode | |
delay(10); | |
// We start by connecting to a WiFi network | |
Serial.println(); | |
Serial.println(); | |
Serial.print("Connecting to "); | |
Serial.println(SSID); | |
WiFi.begin(SSID, PASSWORD); | |
while (WiFi.status() != WL_CONNECTED) { | |
delay(500); | |
Serial.print("."); | |
} | |
Serial.println(""); | |
Serial.println("WiFi connected."); | |
Serial.println("IP address: "); | |
Serial.println(WiFi.localIP()); | |
server.begin(); | |
} | |
int value = 0; | |
void loop(){ | |
WiFiClient client = server.available(); // listen for incoming clients | |
if (client) { // if you get a client, | |
Serial.println("New Client."); // print a message out the serial port | |
String currentLine = ""; // make a String to hold incoming data from the client | |
while (client.connected()) { // loop while the client's connected | |
if (client.available()) { // if there's bytes to read from the client, | |
char c = client.read(); // read a byte, then | |
Serial.write(c); // print it out the serial monitor | |
if (c == '\n') { // if the byte is a newline character | |
// if the current line is blank, you got two newline characters in a row. | |
// that's the end of the client HTTP request, so send a response: | |
if (currentLine.length() == 0) { | |
// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK) | |
// and a content-type so the client knows what's coming, then a blank line: | |
client.println("HTTP/1.1 200 OK"); | |
client.println("Content-type:text/html"); | |
client.println(); | |
// the content of the HTTP response follows the header: | |
client.print("Click <a href=\"/H\">here</a> to turn the internal LED on.<br>"); | |
client.print("Click <a href=\"/L\">here</a> to turn the internal LED off.<br>"); | |
// The HTTP response ends with another blank line: | |
client.println(); | |
// break out of the while loop: | |
break; | |
} else { // if you got a newline, then clear currentLine: | |
currentLine = ""; | |
} | |
} else if (c != '\r') { // if you got anything else but a carriage return character, | |
currentLine += c; // add it to the end of the currentLine | |
} | |
// Check to see if the client request was "GET /H" or "GET /L": | |
if (currentLine.endsWith("GET /H")) { | |
digitalWrite(BUILTIN_LED, HIGH); // GET /H turns the LED on | |
} | |
if (currentLine.endsWith("GET /L")) { | |
digitalWrite(BUILTIN_LED, LOW); // GET /L turns the LED off | |
} | |
} | |
} | |
// close the connection: | |
client.stop(); | |
Serial.println("Client Disconnected."); | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment