Voice-Controlled Home Automation: Control Your Lights with ESP32 and Google AssistantVoice-Controlled Home Automation: Control Your Lights with ESP32 and Google Assistant

// Voice-Controlled Light with ESP32 + Google Assistant
// Roborear – Shahrear Abedin Bhuiyan

#include <WiFi.h>
#include <SinricPro.h>
#include <SinricProSwitch.h>

// ---------- WiFi Credentials ----------
#define WIFI_SSID     "Your_SSID"      // Your home Wi-Fi name
#define WIFI_PASS     "Your_Password"  // Your Wi-Fi password

// ---------- Sinric Pro Credentials ----------
#define APP_KEY       "your-app-key-here"        // From Sinric Pro dashboard
#define APP_SECRET    "your-app-secret-here"     // From Sinric Pro dashboard
#define DEVICE_ID     "your-device-id-here"      // Your device ID

// ---------- Relay Pin ----------
#define RELAY_PIN     26

// ---------- LED State ----------
bool ledState = false;

// ---------- Power State Handler ----------
bool onPowerState(String deviceId, bool state) {
  Serial.printf("Device: %s turned %s\r\n", deviceId.c_str(), state ? "ON" : "OFF");
  ledState = state;
  digitalWrite(RELAY_PIN, !state);  // Note: HIGH = relay OFF (depending on your module)
  return true;
}

// ---------- WiFi Event Handler ----------
void setupWiFi() {
  WiFi.begin(WIFI_SSID, WIFI_PASS);
  Serial.print("Connecting to Wi-Fi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\nWi-Fi connected");
  Serial.print("IP Address: ");
  Serial.println(WiFi.localIP());
}

// ---------- Sinric Pro Setup ----------
void setupSinricPro() {
  SinricProSwitch &mySwitch = SinricPro[DEVICE_ID];
  mySwitch.onPowerState(onPowerState);
  
  SinricPro.begin(APP_KEY, APP_SECRET);
  Serial.println("Sinric Pro connected");
}

// ---------- Setup ----------
void setup() {
  Serial.begin(115200);
  
  // Relay pin as output
  pinMode(RELAY_PIN, OUTPUT);
  digitalWrite(RELAY_PIN, HIGH);  // Start with relay OFF
  
  setupWiFi();
  setupSinricPro();
}

// ---------- Loop ----------
void loop() {
  SinricPro.handle();
}