Datasheet

1300 Henley Court

Pullman, WA 99163

509.334.6306

www.digilentinc.com

PmodBT2™ Reference Manual

Revised April 15, 2016

This manual applies to the PmodBT2 rev. A

DOC#: 502-214

Other product and company names mentioned may be trademarks of their respective owners.

Page 1 of 3

Overview

The PmodBT2 is a powerful peripheral module employing the Roving Networks® RN-42 to create a fully integrated

Bluetooth interface.

1 Functional Description

The PmodBT2 uses a standard 12-pin port and communicates via UART. There is a secondary SPI header on the

board for updating the RN-42 firmware if needed.

1.1 Jumper Settings

The PmodBT2 has several modes available to the user via jumper settings. JP1 through JP4 provide various modes

of operation as indicated in Table 1 below. Each jumper is active when shorted. JP1 restores the device to factor

default settings after three transitions of the jumper setting (short-to-open or open-to-short). After the third

transition, the device returns to factor default except for the Bluetooth name. The other three jumpers, JP2-JP4,

only sample in the first 500 ms of operation to allow the pins that they tie to on the RN-42 module to serve a

separate purpose later in the modules operation. JP2 enables pairing with a special device class defined by the

user in software. This may be used so that the PmodBT2 operates as a substitute for an RS232 cable. JP3 enables

auto connect to a stored address defined by the user. Finally, JP4 chooses whether to operate at the stored baud

The PmodBT2.

 Bluetooth 2.1/2.0/1.2/1.0 compatible

 Add wireless capability with this low power, Class 2

Bluetooth radio

 Supports HID profile for making accessories such as

pointing devices, etc.

 Secure communications, 128-bit encryption

 Supports Bluetooth data link to iPhone/iPad/iPod Touch

 Six different modes

 Small PCB size for flexible designs 1.5“ × 0.8” (3.8 cm × 2.0

cm)

 12-pin Pmod port with UART interface

Features include:

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300 Henley Court Pullman, WA 99163 509.334.6306 www.digilentinc.com PmodBT2™ Reference Manual Revised April 15, 2016 This manual applies to the PmodBT2 rev. A Overview The PmodBT2 is a powerful peripheral module employing the Roving Networks® RN-42 to create a fully integrated Bluetooth interface. Features include:        The PmodBT2. 1  Bluetooth 2.1/2.0/1.2/1.
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PmodBT2™ Reference Manual rate (115.2kbps default) or a baud rate of 9600 regardless of the software selected rate when shorted. For more detailed information on jumper settings and functionality, refer to the RN-42 user manual. Jumper JP1 (PIO4) JP2 (PIO3) JP3 (PIO6) JP4 (PIO7) Description Factory Default Auto Discovery/Pairing Auto Connect Baud Rate Setting (9600) Table 1. Set jumper description.
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PmodBT2™ Reference Manual In order to enter the command mode, the PmodBT2 must receive "$$$" to which it will respond "CMD". When in command mode, the module will respond to a large number of commands allowing the user to customizing the module for specific applications. In order to exit command mode, send "---" (three minus signs in a row and where stands for the carriage return character) to which the device will respond "END".