2.3 Part Three: Bluetooth Click Module

The RN4678 Bluetooth Click module connects to the PIC through the RTS, CTS, RXD, TXD, RST, and SW_RST pins. The CTS and TXD pins are configured as input pins while the RTS, RXD, RST, and SW_RST pins are configured as output pins. The Click module shares the 3.3V power line and the ground pins, both pins, with the PIC. Figure 2-3 shows the connections made between the RN4678 Bluetooth Click module and the PIC for both the desk and door modules.