Custom 128bit uuid operations (write and read) in pc-ble-driver-py

RE: Custom 128bit uuid operations (write and read) in pc-ble-driver-py

Jørgen Holmefjord — Fri, 11 Mar 2022 11:22:57 GMT

Please post your question in a new ticket.

RE: Custom 128bit uuid operations (write and read) in pc-ble-driver-py

ashen — Thu, 10 Mar 2022 09:09:53 GMT

Hi Jørgen

how to discovery 128bit custom characteristic UUID?

RE: Custom 128bit uuid operations (write and read) in pc-ble-driver-py

Jørgen Holmefjord — Mon, 06 Apr 2020 12:37:39 GMT

Hi,

Attached an NUS example that works with the latest version of pc-ble-driver-py, that both supports both notifications for TX and also writes for RX.

devzone.nordicsemi.com/.../nus_5F00_collector_5F00_joh2_5F00_0.14.2.py

Best regards,
Jørgen

RE: Custom 128bit uuid operations (write and read) in pc-ble-driver-py

nagendrapilladi — Fri, 03 Apr 2020 10:16:34 GMT

I tried as per your suggestions but i got error

pc_ble_driver_py.exceptions.NordicSemiException: CCCD not found

I defined as

ACtual 128 bit UUID is :

0x80, 0x82, 0xca, 0xa8, 0x41, 0xa6, 0x40, 0x21, 0x91, 0xc6, 0x56, 0xf9, 0xb9, 0x54, 0xcc, 0x34]

SUOTA_MEMD_UUID = BLEUUIDBase(
    [0x80, 0x82, 0x00, 0x00, 0x41, 0xa6, 0x40, 0x21, 0x91, 0xc6, 0x56, 0xf9, 0xb9, 0x54, 0xcc, 0x34])
NUS_SUOTA_MEMD_UUID = BLEUUID(0xcaa8, SUOTA_MEMD_UUID)



and added as

self.adapter.driver.ble_vs_uuid_add(SUOTA_MEMD_UUID) in open function

self.adapter.enable_notification(conn_handle = new_conn, uuid = NUS_SUOTA_MEMD_UUID) 

in

def connect_and_discover(self)




i got error CCCD not found  This char is only Read and write attributes only


please support how to read and write operations on ACtual 128 bit UUID  .

RE: Custom 128bit uuid operations (write and read) in pc-ble-driver-py

Jørgen Holmefjord — Fri, 03 Apr 2020 09:14:02 GMT

Hi,

I posted the instructions for adding and writing 128-bit UUIDs in pc-ble-driver-py a couple of years ago. The examples may have changed a bit since then, but the principle should be the same.

Best regards,
Jørgen