3.2.9 RNBD GPIO Based Connection Setup

The RNBD451 device has BT Status indication 1 and BT Status indication 2 pins which can be used to indicate GPIO based connection status. This feature can be useful in the scenario were the host MCU can verify the BT connection status by monitoring the status indication pins other than monitoring the connect message in the serial UART prints.

Ble Status Indication Pin Table:

PIN Mapping Between RNBD BLE Status 1 & 2 Pins with PIC18F47Q10:

Table 3-4. 
Pin FunctionalityRNBD Pin NumberPIC18F47Q10 Pin Number
Ble Status Indication 1PB3PA6
Ble Status Indication 2PB7PA5
  1. Selecting GPIO Based Connection for Both Basic Data Exchange & Transparent UART Application

  2. Pin Selection for Status Indication 1 & 2 Pins under Pin Grid View:

  3. Pins Setting under Project Resource:

    By Default Start High, Pullup, checks will be selected for Status Indication Pin 1 & 2

    Uncheck the Start High, Pullup checks as shown in the below Picture

    Make sure Status Ind1 & Status Ind2 pins are configured with Sense Both Edges as shown below