“In this home automation tutorial video, we will design a smart home relay module that can control 5 home appliances. This relay module can be controlled from Mobile or smartphone, IR remote or TV remote, Manual switch. This smart relay also can sense the room temperature and sunlight to turn on and off the fan and light bulb.
This smart relay has the following features:
1. Home appliances controlled by mobile Bluetooth
2. Home appliances controlled by TV Remote (Infrared)
3. Home appliances controlled by temperature & Humidity sensor automatically
4. Home appliances controlled by Dark Sensor
5. Display the LIVE temperature & Humidity reading.
6. Home appliances controlled with manual switches
7. Inbuilt Arduino so Arduino code can be uploaded to the relay module.
Supplies:Required Components for the Smart Home Projects:
1. ATMEGA328P microcontroller
2. HC05 Bluetooth Module
3. DHT11 Sensor
4. OLED Display (128 X 32)
5. 1738 Infrared Receiver
6. PC817 Optocoupler (5 no)
7. BC547 NPN Transistors (5 no)
8. 1N4007 Diodes (5 no)
9. 1N4001 Diode (1 no)
10. LEDs 5mm (6 no)
11. 22pF Capacitors (2 no)
12. 100nF (104) Capacitor (1 no)
13. 100uF Capacitor (1 no)
14. 220-ohm Resistors (10 no) (R6 to R10)
15. 1k Resistors (7 no) (R1 to R5)
16. 10k Resistors (8 no)
17. 2k (1no) & 4.7k (1no) Resistor
18. LDR (1 no)
19. 16MHz Crystal,
20. Push Buttons (8 no)
21. 5V relays (5 no)
22. Jumper (2no), connectors, IC base
23. FTDI 232 USB to Serial interface board or Arduino UNO
24. PCB”