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#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESPAsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include "LittleFS.h"
// Replace with your network credentials
const char* ssid = "REPLACE_WITH_YOUR_SSID";
const char* password = "REPLACE_WITH_YOUR_PASSWORD";
// Create AsyncWebServer object on port 80
AsyncWebServer server(80);
// Create a WebSocket object
AsyncWebSocket ws("/ws");
// Set LED GPIO
const int ledPin1 = 12;
const int ledPin2 = 13;
const int ledPin3 = 14;
String message = "";
String sliderValue1 = "0";
String sliderValue2 = "0";
String sliderValue3 = "0";
int dutyCycle1;
int dutyCycle2;
int dutyCycle3;
// Initialize LittleFS
void initFS() {
if (!LittleFS.begin()) {
Serial.println("An error has occurred while mounting LittleFS");
}
Serial.println("LittleFS mounted successfully");
}
// Initialize WiFi
void initWiFi() {
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
Serial.print("Connecting to WiFi ..");
while (WiFi.status() != WL_CONNECTED) {
Serial.print('.');
delay(1000);
}
Serial.println(WiFi.localIP());
}
void handleWebSocketMessage(void *arg, uint8_t *data, size_t len) {
AwsFrameInfo *info = (AwsFrameInfo*)arg;
if (info->final && info->index == 0 && info->len == len && info->opcode == WS_TEXT) {
data[len] = 0;
message = (char*)data;
if (message.indexOf("1s") >= 0) {
sliderValue1 = message.substring(2);
dutyCycle1 = map(sliderValue1.toInt(), 0, 100, 0, 1023);
Serial.println(dutyCycle1);
}
if (message.indexOf("2s") >= 0) {
sliderValue2 = message.substring(2);
dutyCycle2 = map(sliderValue2.toInt(), 0, 100, 0, 1023);
Serial.println(dutyCycle2);
}
if (message.indexOf("3s") >= 0) {
sliderValue3 = message.substring(2);
dutyCycle3 = map(sliderValue3.toInt(), 0, 100, 0, 1023);
Serial.println(dutyCycle3);
}
}
}
void onEvent(AsyncWebSocket *server, AsyncWebSocketClient *client, AwsEventType type, void *arg, uint8_t *data, size_t len) {
switch (type) {
case WS_EVT_CONNECT:
Serial.printf("WebSocket client #%u connected from %s\n", client->id(), client->remoteIP().toString().c_str());
break;
case WS_EVT_DISCONNECT:
Serial.printf("WebSocket client #%u disconnected\n", client->id());
break;
case WS_EVT_DATA:
handleWebSocketMessage(arg, data, len);
break;
case WS_EVT_PONG:
case WS_EVT_ERROR:
break;
}
}
void initWebSocket() {
ws.onEvent(onEvent);
server.addHandler(&ws);
}
void setup() {
Serial.begin(115200);
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
pinMode(ledPin3, OUTPUT);
initFS();
initWiFi();
initWebSocket();
// Web Server Root URL
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(LittleFS, "/index.html", "text/html");
});
server.serveStatic("/", LittleFS, "/");
server.on("/currentValue1", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(200, "/text/plain", String(sliderValue1).c_str());
});
server.on("/currentValue2", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(200, "/text/plain", String(sliderValue2).c_str());
});
server.on("/currentValue3", HTTP_GET, [](AsyncWebServerRequest *request){
request->send(200, "/text/plain", String(sliderValue3).c_str());
});
// Start server
server.begin();
}
void loop() {
analogWrite(ledPin1, dutyCycle1);
analogWrite(ledPin2, dutyCycle2);
analogWrite(ledPin3, dutyCycle3);
ws.cleanupClients();
}
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