btP2P代表的是Bluetooth P2P。该软件实现的是手机上的蓝牙功能-btP2P represent Bluetooth P2P. The software is the Bluetooth-enabled mobile phones

Circuit connections of this project are very simple. Bluetooth module’s Rx and Tx pins are directly connected to the Tx and Rx pins of Microcontroller. Three 5 volt relays are used as a switch for turning On and Off the home appliances running on AC