有关KM7805电源模块的设计使用！~！！！共享了啊-the KM7805 Power Module design! ~! ! ! Sharing the ah!

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