In this project we used Bluetooth module for controlling electronics/ electrical devices
we can control number of devices in this project for communicating between module and devices we could use AVR or 89s52 controller. we could use PLC also for this purpose. Normally we use DELTA make PLC in projects.
we will use WT32 or BLE113 module . we will use a android app for this purpose. from app we wills end data to receiver bluetooth which will give data to controller IC