ទស្សនាវដ្ដីអេឡិចត្រូនិចកម្ពុជា : Raspberry Pi with Arduino for Smart Home Control

Raspberry Pi with Arduino for Smart Home Control

System Diagram

Hardware Devices
1.Raspberry Pi Board + OpenWRT Boot Loader SD Card
2.Arduino UNO Board or Compatible Board
3.Relay Board
and WiFi Router with LAN Cable ,Power Supply for Raspberry Pi and Arduino Board

Wiring Diagram
Raspberry Pi Board connect to Arduino Board with Serial Communication TTL UART Port ( Rx , Tx )
If your Arduino Board use 5 Volt Supply must need level converter to Raspberry Pi Board ( Raspberry Pi board use 3 V. )
But Arduino Board use 3.3 V so, don't need use level converter.
Use Arduino Pin 0,1

Level converter use Resistor 270 ohm and 470 ohm ( 2.7K and 4.7K )

Level converter use Level Converter Module

Arduino Board to Relay Board use Digital output pin 2 - 9
But your change to other pin you want.

Software
1. OpenWRT embedded Software to create Web Server.
2. Python
3. JavaScript
4.Arduino - Python Command API by thearn ( For Arduino Board )

Raspberry Pi Web Server