can we able to send the message using uuid

RE: can we able to send the message using uuid

bjorn-spockeli — Wed, 06 Nov 2019 07:53:45 GMT

You set a read-only characteristic value on the peripheral to a unique identifier, e.g. a number or string. Then once a central have connected to it, it can read this characteristic to identify the peripheral.

RE: can we able to send the message using uuid

ps_anu — Wed, 06 Nov 2019 07:23:44 GMT

Thanks bjorn , I am going with bluetooth address .How to pass the data using bluetooth address , any sample structure or code ?

RE: can we able to send the message using uuid

ps_anu — Tue, 05 Nov 2019 12:30:43 GMT

Hi bjorn,

i didn't get this line .. can you explain me some brief " some other unique identifier that can be read out from a characteristic to identify the peripheral."

Thanks

pspavi

RE: can we able to send the message using uuid

bjorn-spockeli — Mon, 04 Nov 2019 18:34:22 GMT

A Bluetooth Device does not have a device UUID, but its the services/characteristics/ descriptors that it populates its GATT table with. So if you if want to send data to a specific peripheral amongst several other peripherals that have the same services/characteristics, then you will need to either use the Bluetooth address or some other unique identifier that can be read out from a characteristic to identify the peripheral.

RE: can we able to send the message using uuid

bjorn-spockeli — Mon, 04 Nov 2019 13:29:07 GMT

See our BLE Multi-link Example.

RE: can we able to send the message using uuid

ps_anu — Mon, 04 Nov 2019 12:18:28 GMT

i want to add multiple devices and want to send the data using uuid of specific device

RE: can we able to send the message using uuid

bjorn-spockeli — Mon, 04 Nov 2019 12:11:47 GMT

I suggest you read through this tutorial

https://devzone.nordicsemi.com/nordic/short-range-guides/b/bluetooth-low-energy/posts/ble-services-a-beginners-tutorial

Best regards

Bjørn