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I am currently learning bluetooth and know android connect bluetooth device, it needs uuid for read / write or more. But I don't know what does uuid mean such as "0000fff4-0000-1000-8000-00805f9b34fb", but I found it can use in get blood pressure value. But is it the standard of Bluetooth? And, it has website to search the uuid and the usage and characteristic?

I cannot find it in the Bluetooth website.

I hope to know what is uuid in the Bluetooth device, and is it standard or not? Or does it need according to the device factory provide?

Thanks.

CPP_is_no_STANDARD
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Siu On YAM
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  • Read https://stackoverflow.com/questions/60017350/bluetooth-gatt-service-uuid-overview/60100785#60100785 to get an overview of UUIDs – Nipo Jul 27 '22 at 11:23

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The website of the Bluetooth SIG has a specification of all assigned numbers available. You can find all predefined UUIDs in their 16-bit UUID Numbers Document (direct link). The 16-bit UUID for the Blood Pressure Service would be 0x1810, so no, your UUID is not a standard address.

You can find more information about the Blood Pressure Service and how to use it and other services in the specification list.

Michael Kotzjan
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