Control 4 electrical appliances using ESP32, Alexa, and a 4-channel relay module.
- Voice control using Amazon Alexa
- Control up to 4 devices
- Works with Sinric Pro
- LOW-trigger relay support
- Beginner friendly
| Relay Pin | ESP32 GPIO |
|---|---|
| IN1 | GPIO 14 |
| IN2 | GPIO 27 |
| IN3 | GPIO 26 |
| IN4 | GPIO 25 |
| VCC | 5V (VIN) |
| GND | GND |
- ESP32 Dev Board
- 4-Channel Relay Module
- Sinric Pro Account
- Arduino IDE
- Replace WiFi credentials in code
- Add your Sinric Pro App Key & Secret
- Add Device IDs
- Upload to ESP32
This project is licensed under the MIT License.
🎥 YouTube Tutorial: https://youtu.be/eHmvbZXSIWw