Automatic room light control using infrared sensors for presence detection and Bluetooth for remote LED activation.
Smart Room device project uses infrared sensors to turn on the room light when someone enters and off when they leave. It also includes Bluetooth control: sending ‘a’ turns on an LED bulb, and ‘b’ turns it off. This setup makes it easy to manage lighting both automatically and remotely for convenience and energy savings.
Components:
- Arduino Uno – 1
- IR Sensors (e.g., PIR sensors) – 2
- Bluetooth Module (e.g., HC-05 or HC-06) – 1
- Relay Module – 1
- AC Bulb (or Lamp) – 1
- Jumper Wires – Several
- Breadboard – Optional
- Power Supply – For Arduino and relay
Connections:
Arduino to IR Sensors:
- IR Sensor 1:
- VCC to 5V
- GND to GND
- Signal pin to digital pin 2
- IR Sensor 2:
- VCC to 5V
- GND to GND
- Signal pin to digital pin 3
Arduino to Bluetooth Module (HC-05/HC-06):
- Bluetooth TX to Arduino RX (pin 0)
- Bluetooth RX to Arduino TX (pin 1)
- Bluetooth VCC to 5V
- Bluetooth GND to GND
Arduino to Relay Module:
- Relay IN to digital pin 13
- Relay VCC to 5V
- Relay GND to GND
Relay Module to AC Bulb:
- Common (COM) to one terminal of the bulb
- Normally Open (NO) to the live wire from the power source
- Other terminal of the bulb to neutral wire from the power source
Contact us at:
STEMROBO Technologies Private Limited
Toll Free: 1800-120-500-400
Email: sales@stemrobo.com
Website: www.stemrobo.com
