PAN1322
Application Note
22
Revision 1.2, 2013-12-18
Design Guide
The host application that controls eUniStone need to fulfill the control as required by the Accessory
functionality. To control the Bluetooth link using eUniStone minimal requirements must be covered
since the entire Bluetooth stack is included in eUniStone.
5.1
Accessory
An accessory can be any device that connects, sends and/or receives data to and from a remote
device. The device can be small and portable or part of a bigger system. Typical usages for an
accessory are;
Sensor
Display
Remote control
Display with buttons
Keypad
Handheld terminal
The eUniStone is specially made to support all these types of accessories/applications using the Serial
Port Profile (SPP) over Bluetooth.
5.1.1
Host Processor
The host processor in an accessory, using eUniStone, may be a really light micro-controller, FPGA or
similar but also e.g. a PC. In the below figure there is an external peripheral control and chip connected
to the host processor, this may be needed depending on the accessory functionality requirements. For
use in an iPhone application there is a need for an external chip and control functionality.
