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I am trying to get data from Blood Pressure Measurement characteristic. How to get data from it, Pulse Rate for example? Thanks anyway.

Aaron Skomra
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Sergey Sheleg
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  • There are many examples of how to perform a BLE Read Characteristic operation. You have to access a specific service in the GATT Server with a corresponding characteristic which are typically defined by UUIDs. Then you have to perform a BLE Read operation on a specific characteristic. Then the received value from the external device will be triggered in the public void onCharacteristicRead() method in BLE Callback operation. You can find more information here: https://developer.android.com/guide/topics/connectivity/bluetooth-le.html – Osman Esen Jan 12 '15 at 16:37
  • yes. it works for many characteristics, but not on Blood Pressure Measurement. – Sergey Sheleg Jan 13 '15 at 16:55
  • what exactly did you try? what did not work? – Ifor Jan 16 '15 at 16:10
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    Hello there, Check the service with UUID - 00001810-0000-1000-8000-00805f9b34fb, subscribe to the characteristic with id - 00002a35-0000-1000-8000-00805f9b34fb. Now I am searching a way to parse the info from this characteristic. – sunlover3 Dec 20 '16 at 09:19

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In order to parse the values from the characteristic, you can get the value of the characteristic as a byte array. Each byte in the array corresponds to a different value.

My device returned blood pressure values in mmHg and I found that the systolic value was at index 1, the diastolic value was at index 3, and the heart rate was at index 14. After converting these values to integers, I was able to see the same values to what the blood pressure monitor showed.

Jeff Sham
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    That's nice but is that actually documented anywhere? Wireshark has a decoder in its packet dumper but they must have gotten their info from *somewhere*. – Matthias Urlichs Feb 25 '21 at 09:22
  • Similar to my situation. Im getting systolic pressure on 1st index, diastolic on 3rd and pulse on 7th but unfortunately I cant find any CONCRETE specification for this byte array values :/ – west44 Aug 27 '22 at 11:48