Oxitone 1000M - Page 17

Oxitone 1000M
User Manual Rev. 1.
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Page 17 of 39
6.1.1 BLE Roles:
BLE roles are split into pre-connection and post-connection.
Pre-connection
At startup the Oxitone 1000M is either a peripheral or a central.
 A peripheral advertises itself and waits for a central to connect to it.
 A central scans for other devices, a central is usually a smartphone PC.
After a peripheral makes a connection it's called a slave, after a central makes a connection it's
called a master.
Post connection
After a BLE connection has been established, devices can be either a client or a server.
 A client accesses remote resources, a client is usually the master (host).
 A server has a local database of resources (profiles/services/characteristics), if provides
resources to the remote client. A server is usually a slave.
A client sends read and write operations to the server, and the server responds with data.
A server can send data to the client without a read/write request using indicate and notify
operations.
Oxitone 1000M has the role of a peripheral (server/slave).
3
Amount of oxygen in your blood (functional oxygen saturation of arterial
hemoglobin)
98 % System is monitoring OK
98 % System is not monitoring (value is grayed-out)
4
Your pulse rate. Pulse rate is the number of times your heart beats per minute.
65 System is monitoring OK
65 System is not monitoring (value is grayed-out)
5
Signal strength indicator
Relative signal strength