🗣️ Voice-Controlled Appliances

Hey Google, turn on the lights. Emulate a smart home device using an ESP32.

📋 Overview

By pretending to be a Belkin Wemo smart plug or using a cloud service like Sinric Pro, the ESP32 can connect directly to Amazon Alexa or Google Assistant.

What you'll learn: Third-party IoT cloud integrations, voice command parsing, and AC relay control.

Estimated time: 2-3 hours. Difficulty: ⭐⭐⭐ Intermediate.

🧩 Components Needed

Component	Specification	Qty	Notes
ESP32 Development Board	WiFi	1
Relay Module	5V	1
Appliance	e.g., Desk Lamp	1	USE CAUTION WITH AC VOLTAGE

📖 Step-by-Step Tutorial

Create IoT Account

Configure Tokens

Enter your Wi-Fi credentials and the API keys/Device IDs from your IoT platform into the sketch.

Wire Relay

Connect the relay to an ESP32 GPIO pin (e.g., GPIO 13).

Link Account

Open the Alexa or Google Home app and link your IoT account to discover the new device.

💡

FauxmoESP emulates Philips Hue / Wemo devices locally (no cloud needed) but only works with Alexa. For Google Assistant, you must use a cloud broker like Sinric.

💻 Code / Configuration

voice_lights.ino

INO

// Voice Controlled Lights (Sinric Pro conceptual)
#include <WiFi.h>
#include <SinricPro.h>
#include <SinricProSwitch.h>

#define WIFI_SSID         "YOUR_SSID"
#define WIFI_PASS         "YOUR_PASS"
#define APP_KEY           "YOUR_APP_KEY"
#define APP_SECRET        "YOUR_APP_SECRET"
#define SWITCH_ID         "YOUR_DEVICE_ID"
#define RELAY_PIN         13

bool onPowerState(const String &deviceId, bool &state) {
  Serial.printf("Device %s turned %s\r\n", deviceId.c_str(), state?"on":"off");
  digitalWrite(RELAY_PIN, state ? HIGH : LOW);
  return true;
}

void setup() {
  Serial.begin(115200);
  pinMode(RELAY_PIN, OUTPUT);
  WiFi.begin(WIFI_SSID, WIFI_PASS);
  while(WiFi.status() != WL_CONNECTED) delay(500);

  SinricProSwitch& mySwitch = SinricPro[SWITCH_ID];

⭐Reviews & Ratings

—

0 reviews

5★

4★

3★

2★

1★

...

Loading reviews...