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Disconnect after 5 seconds during second connect with NUS service

Dear experts,

The following is my development environment:-

a. Using the PCA10040 development board,

b nRF UART 2.0 Anadroid application on my Nokia 6.0 mobile.

c. ble_app_uart, Nordic Uart Service example from the link:- C:\Nordic Semiconductor\examples\ble_peripheral\ble_app_uart\pca10040\s132\ses

d. Softdevice S132.

3. BLE mode:- BLE Peripheral.

After loading the S132 hex and the application hex, I am able to discover the device in my nRF UART 2.0 app when I press connect button. Once I select the BT device from the list, it gets connected...which is good. Next I am able to send data using ble_nus_data_send() from the development board. I can also send data from the Android app by typing in the text window, press "SEND" and the data seen on the UART/USB interface connected to the developmen board on the PC/Laptop hyperterminal.

So far all is good...

Next I disconnect by pressing the "DISCONNECT" button on the Android App. I can see that the LED on the development board is bliinking every 2 seconds that means it is adverttisement mode. In the next 2-5 seconds, I again press "CONNECT" button, able to discover the development board, press the item and the message COnnected appeats on the Android APp. But in the next 5 seconds, I see that the device gets immediately disconnected as I see the message "DISCONNECTED" on the android app. Only if I POR the development board, I can repeat the connection and disconnection....second connection always fails!!!!! Can you help to fix this problem? My intention is to support back-to-back connection  to different or same  BLE peripherals one at a time, send data, disconnect and want to repeat the cycle. Please help!!!!

Thanks & regards
Sandeep Suresh 

Parents Reply
  • ssuresh said:

    3. nRF UART 2.0 is the simplest android app and we have integrated all of the features now. Other than this problem, there isn't any other failing test case. Hence please help to fix this to move forward on this.



     But did you try the toolbox application? It contains a nRF Uart app that is more recently updated then nRF Uart 2.0 which hasn't been updated in years.

    regards

    Jared

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