Created
July 12, 2017 18:53
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Code to run WiFi in AP mode while running a simple webserver at the same time on an ESP32 Feather Board from Adafruit
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#include <WiFi.h> | |
WiFiServer server(80); | |
const int LED_PIN = 13; | |
void setup() | |
{ | |
initHardware(); | |
setupWiFi(); | |
Serial.println("Starting WebServer"); | |
server.begin(); | |
Serial.println("Webserver Started"); | |
} | |
void loop() | |
{ | |
webserverLoop(); | |
} | |
void initHardware() { | |
pinMode(LED_PIN, OUTPUT); | |
Serial.begin(9600); | |
} | |
void setupWiFi() { | |
Serial.println("Setting WiFi Mode: WIFI_AP"); | |
WiFi.mode(WIFI_AP); | |
Serial.println("Starting AP..."); | |
bool success = WiFi.softAP("esp32", "12345678"); | |
if(success) { | |
Serial.println("AP Started"); | |
Serial.println(WiFi.softAPIP()); | |
} else { | |
Serial.println("AP Setup Failed"); | |
} | |
} | |
void webserverLoop() { | |
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 LED on pin 13 on.<br>"); | |
client.print("Click <a href=\"/L\">here</a> to turn the LED on pin 13 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(LED_PIN, HIGH); // GET /H turns the LED on | |
} | |
if (currentLine.endsWith("GET /L")) { | |
digitalWrite(LED_PIN, LOW); // GET /L turns the LED off | |
} | |
} | |
} | |
// close the connection: | |
client.stop(); | |
Serial.println("Client Disconnected."); | |
} | |
} | |
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