2016-202G Microchip Technology Inc. DS50002489G-page 31
RN4870/71
7.0 SUPPORTED SERVICES
The RN4870 supports two built-in GATT services:
• Device information public service
• UART transparent private service, which handles
data streaming function
In addition to the above predefined private services, the
RN4870 provides the ability to create private services.
If the services are supported on both end points of a
Bluetooth Low Energy connection, such as Central and
Peripheral devices, data can be exchanged. For
example, two RN4870 modules can define a custom
(private) service with their own unique characteristics.
Data can be exchanged easily via Command API.
Private services are not registered with the Bluetooth
SIG, and therefore, not inter-operable with other
Bluetooth Low Energy devices unless the device
implements the private service. An example of a built-
in private service is the Transparent UART. For an
example on how to create a custom service using the
RN4870, refer to “RN4870/71 Bluetooth
®
Low Energy
Module User’s Guide” (DS50002466).
RN4870 allows custom-defined services for up to five
public and four private services. Each custom-defined
service allows up to eight custom-defined characteris-
tics. All service definitions are saved in on-board
Nonvolatile Memory (NVM), where the user must set up
the module only once.
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