SPBT2532C2AT datasheet(21/48 Pages) STMICROELECTRONICS

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SPBT2532C2.AT

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B.3

Overview

This chapter gives a basic overview of the abSerial interface. For further information, please

refer to the abserial user guide.

B.4

abSerial interface overview

abSerial is a cable replacement application that provides point-to-point communication

between two Bluetooth devices. A serial port is used to communicate with a host device

through an AT command interface as shown below.

Figure 10.

Communications between hosts

abSerial provides the following basic features:

●

Point-to-point connection – abSerial only supports a connection with one device at a

time.

●

Optional MultiPoint applications are available upon request

●

Serial port profile – SPP is supported with abSerial for both Client and Server

application.

●

Optional dial up networking – DUN profile support for Client applications (DUN Server

is not currently supported).

●

Optional OBEX profiles are available upon request

●

Command and bypass modes – it is possible to switch between command and bypass

(data transmit/receive) modes during an active connection

●

Security – Bonding and data encryption provides a secure link between two devices.

●

Multiple device bonding – special security keys can be exchanged with multiple devices

to allow different devices to securely connect with abSerial.

●

Power conservation – use of the sniff feature to minimize power consumption.

●

Variable baud rates – the serial port can be configured for the following baud rates:

1200, 2400, 4800, 9600, 19.2k, 38.4k, 57.6k, 115.2k (default), 230.4k, 460.8k, 921.6k

AT Cmds

Host

Device

Bluetooth

Device

Bluetooth

Device

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