User's Manual

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RN-24 / RN25

www.rovingnetworks.com

DS-RN24-V2 1/28/2009

809 University Avenue • Los Gatos, CA 95032 • Tel (408) 395-6539 • info@RovingNetworks.com

Class 1 Bluetooth® Super

Module

Features

• Supports Bluetooth 2.1/2.0/1.2/1.1 and

v2.0+EDR

• Embedded SPP/DUN stack support, no

host or processor stacks required

• Small-form factor 24 Pin DIP package (0.1”

pitch X 0.9” socket width)

• Accepts 4Vdc to 24Vdc power

• Serial port signals on TTL, RS- 232 and

RS-485 levels.

• RS-485 signaling with auto-direction control

(PCB rev 4 )

• UART baud rate speeds: 1200bps up to

921.6Kbps

• 9 General Purpose Input/Output Pins (4ma

source/sink) controlled via remote

commands

• 2 Channel 8 Bit AD converter (5Hz, 0-

1.8VDC )

• LEDs indicate connection and RX/TX status

• On board antenna or external SMA jack

• Low power consumption (30mA

connected,, <10mA sniff mode)

• Programmable over local UART and

remotely from any Bluetooth client

o Simple ACSII command interface

• UART (SPP or HCI) and USB (HCI only) data

connection interfaces

• Sustained SPP data rates - 240Kbps (slave),

300Kbps (master)

• Embedded Bluetooth stack profiles included

(requires no host stack): GAP, SDP,

RFCOMM and L2CAP protocols, with SPP

and DUN profile support.

Applications

• Wireless RS232/RS485 cable replacement

• Remote equipment monitoring

• Scanners, GPS and measurement systems

• Industrial sensors and controls

• Medical devices

Description

The RN24 transforms your product’s serial interface

into a wireless connection. The RN24 is a Class 1

Bluetooth radio with auto-connect and connect on RX

data features, enabling your product to transfer data

up to 100M. The RN24 accepts a wide range of

unregulated DC power. The DIP packaging with

GPIO, UART interfaces and AD converter makes it

the perfect prototyping module and allows products to

have optional Bluetooth capability when the module

is plugged in.

Block Diagram

CSR BlueCore-04

External

BALUN

Switch

Crystal

Flash

Memory

GND

VCC

USB

UART

PCM

PIO6

PIO5

PIO4

Summary of content (9 pages)

PAGE 1
RN-24 / RN25 www.rovingnetworks.com DS-RN24-V2 1/28/2009 Class 1 Bluetooth® Super Module Features • • • • • • • • • • • • • • Supports Bluetooth 2.1/2.0/1.2/1.1 and v2.0+EDR Embedded SPP/DUN stack support, no host or processor stacks required Small-form factor 24 Pin DIP package (0.1” pitch X 0.9” socket width) Accepts 4Vdc to 24Vdc power Serial port signals on TTL, RS- 232 and RS-485 levels. RS-485 signaling with auto-direction control (PCB rev 4 ) UART baud rate speeds: 1200bps up to 921.
PAGE 2
DS-RN24_V2 1/28/2009 Overview UART baud rate speeds: 1200bps up to 921Kbps, non-standard baud rates can be programmed.
PAGE 3
DS-RN24_V2 1/28/2009 Digital I/O Characteristics WARNING: Take care not to exceed the voltage limits to the VCC, TTL SERIAL, and GPIO pins. 0 negative voltage or voltage exceeding 3.30 VDC can permanently damage the device! • Use a 10KΩ series resistor on inputs • GPIO sink current is 4mA max. • Unused pins should float 2.7V ≤ VDD ≤ 3.0V Input logic level LOW Input logic level HIGH Output logc level LOW Output logic level HIGH All I/O’s (except reset) default to weakpull down Min -0.4 0.7VDD VDD-0.2 +0.
PAGE 4
DS-RN24_V2 1/28/2009 Pin Description NOTE: The Power can be applied to either pin 12, or pin 3, but NOT both. If pin 12 is powered then Pin 3 can be used as a 3.3V regulated supply output up to 200mA.
PAGE 5
DS-RN24_V2 1/28/2009 Module Dimensions 230 mil 1600 mil 320 mil 245 mil LED LED LED LED 24 1 24 2 23 2 23 3 22 3 22 4 21 4 21 5 20 5 20 6 80 mil diameter Mounting hole LED LED Keep metallic components, connectors, copper traces, and ground planes away from antenna area 1 RN24/RN25 19 6 1500 mil RN24/RN25 19 7 18 7 18 8 17 8 17 9 16 9 16 10 15 10 15 11 14 11 14 12 13 12 13 1400 mil 32 31 30 29 28 27 26 25 32 31 30 29 28 27 26 25 100 mi 110 mil
PAGE 6
DS-RN24_V2 1/28/2009 Design Concerns 1. Reset circuit. RN-24 contains a 1k pulldown, the polarity of reset is ACTIVE HIGH. A power on reset circuit with delay is OPTIONAL on the reset pin of the module. It should only be required if the input power supply has a very slow ramp, or tends to bounce or have instability on power up. Often a microcontroller or embedded CPU IO is available to generate reset once power is stable 2. Factory reset PIO4.
PAGE 7
DS-RN24_V2 1/28/2009 RN-SMA-S RN-SMA-4 1” external antenna “Stuby” 4” high performance antenna For other configurations, contact Roving Networks directly. Visit http://www.rovingnetworks.com for current pricing and a list of distributors carrying our products. Copyright © 2009 Roving Networks. All rights reserved. The Bluetooth trademark and logo are registered trademarks and are owned by the Bluetooth SIG, Inc. All other trademarks are property of their respective owners.
PAGE 8
Federal Communications Commission (FCC) Requirements This equipment has been tested and found to comply with the limits for a Class B digi tal device, pursuant to part 15 of the FCC rules. These limits are designed to provide r easonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not insta lled and used in accordance with the instructions, may cause harmful interference to r adio communications.
PAGE 9
distance of at least 20cm from all persons and must not be colocated or operating in c onjunction with any other antenna or transmitter.” This device complies with part 15 of the FCC rules. Operation is subject to the followi ng two conditions (1) This device may not cause harmful interference and (2) This device must accept any interference received, including interference that may cause undesired operation.