How to change UUID in NRFconnect SDK 2.4

[Babu venkat]

Hi,

I would like to change the followng default UUID used for following services in nus.h in NRFconnect SDk2.4.

/** @brief UUID of the NUS Service. **/

#define BT_UUID_NUS_VAL \
BT_UUID_128_ENCODE(0x6e400001, 0xb5a3, 0xf393, 0xe0a9, 0xe50e24dcca9e)

/** @brief UUID of the TX Characteristic. **/
#define BT_UUID_NUS_TX_VAL \
BT_UUID_128_ENCODE(0x6e400003, 0xb5a3, 0xf393, 0xe0a9, 0xe50e24dcca9e)

/** @brief UUID of the RX Characteristic. **/
#define BT_UUID_NUS_RX_VAL \
BT_UUID_128_ENCODE(0x6e400002, 0xb5a3, 0xf393, 0xe0a9, 0xe50e24dcca9e)

How do I change the above UUID to use  my own custom UUID in NRFconnect SDK2.4 in my application?. 

Thanks,

[Edvin]

Hello,

You could of course change the UUID directly in that file, but that means that all other samples that are using that same service and UUID will change as well.

I did a course at some point on how to create a custom BLE service with a couple of characteristics. If you'd like, you can have a look at the github we used for this:

https://github.com/edvinand/OmegaV_BLE_Course

Alternatively, I can strongly recommend the Nordic Developer Academy's course on Bluetooth Low Energy. I believe this also covers creating your own custom Nordic UART Service from scratch:

https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/

Best regards,

Edvin