Commit 5343b5af authored by schneider's avatar schneider
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docs: Update bluetooth overview

parent efc73761
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......@@ -7,7 +7,11 @@ Overview
UUIDs
-----
UUIDs in use by the card10:
Bluetooth uses UUIDs to identify almost everything. The Bluetooth SIG specifies a number of "short" 16-bit UUIDs for general use. A device
is free to define other "long" 128-bit UUIDs if it wants to express non-standard functionality.
The card10 defines a few non-standard UUIDs. They are prefixed with `4232`:
+--------------------------------------+-------------------------------+---------------------------------------------------------------------+
| UUID | Usage | Comment |
......@@ -18,6 +22,11 @@ UUIDs in use by the card10:
+--------------------------------------+-------------------------------+---------------------------------------------------------------------+
| 422303XX-2342-2342-2342-234223422342 | ECG Service | Allows to stream ECG measurements via BLE |
+--------------------------------------+-------------------------------+---------------------------------------------------------------------+
| 422380XX-2342-2342-2342-234223422342 | Experimental usage | To be used for development and experiments |
+--------------------------------------+-------------------------------+---------------------------------------------------------------------+
The first byte after the prefix identifies the service (e.g. `03` for ECG). The next byte is reserved for UUIDs used by the service itself.
The service uses `00` at this position. The first attribute inside the service uses `01` at this position. See the documentation of any
service for an example.
UUIDs created for the card10 generally start with `4223`, followed by one byte identifying the service (e.g. `03` for ECG). The next byte is reserved for UUIDs used by the service itself.
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