Can't Send data - Different UUID

[berk]

Hello,

We are using ble_app_uart example for both central and peripheral. We can succesfully send and receive data.

We deleted the is_UUID_present control. And then we change the UUID of the peripheral, the connection was succesfull but we can't send data. If the UUID is same for both side there is no problem. But we want to send and receive data with different UUID devices.

Also we tried Nordic app for Android and there was no problem at all with different UUID.

[Jørgen Holmefjord]

Why would you use different UUIDs on the two devices? How should they know how to communicate with each other? The UUIDs are used to distinguish specific service/characteristics/descriptors (attributes).