Datasheet

ManualsBrandsMicrochip ManualsBluetooth ModulesBluetooth Module V2.1 4dBm

 2015 Microchip Technology Inc. DS50002328A-page 1

RN42/RN42N

Features

• Fully qualified Bluetooth

version 2.1 module, sup-

ports version 2.1 + Enhanced Data Rate (EDR)

• ASCII command interface over UART

• Postage-stamp-sized form factor:

- RN42: 13.4 x 25.8 x 2.4 mm

- RN42N: 13.4 x 20.5 x 2.4 mm

• Low-power (26 A sleep, 3 mA connected, 30 mA

transmit)

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

nection interfaces

• Sustained SPP data rates: 240 Kbps (Slave mode),

300 Kbps (Master mode)

• HCI data rates: 1.5 Mbps sustained, 3.0 Mbps burst

in HCI mode

• Embedded Bluetooth stack profiles include: GAP,

SDP, RFCOMM, L2CAP protocols, with SPP, HID,

and DUN profile support (does not require any host

stack).

• Bluetooth SIG qualified, end product listing

• Castellated SMT pads for easy and reliable PCB

mounting

• Class 2 power amplifier with on-board PCB trace

antenna (RN42) or external antenna (RN42N)

• Compliance (RN42)

- Modular Certified for the United States (FCC)

and Canada (IC)

- European R&TTE Directive Assessed Radio

Module

- Australia/New Zealand/Japan/Korea/Taiwan

- Bluetooth SIG QDID

• Integrated Crystal, Internal Voltage Regulator,

Matching Circuitry, Power Amplifier, Low Noise,

Memory Amplifier and PCB Antenna

• Easy Integration into Final Product - Minimize Prod-

uct Development, Quicker Time to Market

• Compatible with Microchip Microcontroller Families

(PIC16F, PIC18F, PIC24F/H, dsPIC33 and PIC32)

• Up to 10 meter range

Applications

• Cable replacement

• Barcode scanners

• Measurement and monitoring systems

• Industrial sensors and controls

• Medical devices

Note 1: For customer part numbers, see Section 4.0 “Ordering Information”. Information on firmware versions can be found

on the RN42/RN42N product web page and the “Bluetooth Data Module Command Reference and Advanced Information

User’s Guide”.

RN42/RN42N Module Variants

(1)

Model Antenna Firmware Description

RN42 Integral 4.77, 6.15 Class 2, 2.1+EDR, SPP profile

RN42HCI Integral N/A Class 2, 2.0+EDR, HCI over UART

RN42HID Integral 6.11 Class 2, 2.1+EDR, HID and SPP profiles

RN42U Integral N/A Class 2, 2.0+EDR, HCI over USB

RN42APL Integral 5.36, 5.43, 5.45 Class 2, 2.1+EDR, SPP & MFi profiles

RN42N External 4.77, 6.15 Class 2, 2.1+EDR, SPP profile

RN42NHCI External N/A Class 2, 2.0+EDR, HCI over UART

RN42NHID External 6.11 Class 2, 2.1+EDR, HID and SPP profiles

RN42NU External N/A Class 2, 2.0+EDR, HCI over USB

RN42NAPL External 5.36, 5.43, 5.45 Class 2, 2.1+EDR, SPP & MFi profiles

Class 2 Bluetooth

Module with EDR Support

Summary of content (26 pages)

PAGE 1
RN42/RN42N Class 2 Bluetooth® Module with EDR Support Features • Fully qualified Bluetooth® version 2.1 module, supports version 2.1 + Enhanced Data Rate (EDR) • ASCII command interface over UART • Postage-stamp-sized form factor: - RN42: 13.4 x 25.8 x 2.4 mm - RN42N: 13.4 x 20.5 x 2.4 mm • Low-power (26 A sleep, 3 mA connected, 30 mA transmit) • UART (SPP or HCI) and USB (HCI only) data connection interfaces • Sustained SPP data rates: 240 Kbps (Slave mode), 300 Kbps (Master mode) • HCI data rates: 1.
PAGE 2
RN42/RN42N Table of Contents 1.0 Device Overview ...........................................................................................................................................................................3 2.0 Application Information..................................................................................................................................................................7 3.0 Regulatory Approval............................................................................
PAGE 3
RN42/RN42N 1.0 DEVICE OVERVIEW FIGURE 1-1: The RN42/RN42N module is a small form factor, lowpower, class 2 Bluetooth radio that is ideal for designers who want to add wireless capability to their products without spending significant time and money developing Bluetooth-specific hardware and software. The RN42/RN42N supports multiple interface protocols, is simple to design in, and is fully certified, making it a complete embedded Bluetooth solution.
PAGE 4
RN42/RN42N TABLE 1-3: MODULE DIMENSIONS Parameter RN42 RN42N Units Size 13.4 x 25.8 x 2.4 13.4 x 20.5 x 2.4 mm Weight 0.045 0.040 oz. TABLE 1-4: RADIO CHARACTERISTICS Frequency (GHz) Min. Typ. Max. Bluetooth Specification Units 2.402 — -80 -86 ≤ -70 dBm 2.441 — -80 -86 dBm 2.480 — -80 -86 dBm 2.402 — 4 — dBm 2.441 — 4 — dBm 2.480 — 4 — dBm 2.402 — 4 — dBm 2.441 — 4 — dBm 2.480 — 4 — dBm 2.402 — 5 75 2.441 — 5 75 2.
PAGE 5
RN42/RN42N Figure 1-2 and dimensions. Figure 1-3 FIGURE 1-2: show the modules’ RN42 MODULE DIMENSIONS Top View Figure 1-4 and Figure 1-5 show the pinout and Table 1-6 describes the module’s pins. FIGURE 1-4: RN42 PIN DIAGRAM Side View 25.8 25.8 20.5 19.7 16.0 14.8 13.6 12.4 11.2 10.0 8.8 7.6 6.4 5.2 4.0 2.8 0.7 0.0 0.80mm 0.
PAGE 6
RN42/RN42N TABLE 1-6: Pin PIN DESCRIPTION Symbol Type Description 1 GND Power Ground reference 2 SPI_MOSI DI (Optional) Factory diagnostic, programming and test. See Section 2.8 “SPI Interface”. 3 GPIO6 DI Set Bluetooth master. If GPIO6 = high, module connects to the stored address. If GPIO3 = high, module enters new Discovery/Pairing mode.
PAGE 7
RN42/RN42N APPLICATION INFORMATION The following sections provide information on designing with the RN42/RN42N module, including radio interference, factory reset, solder reflow profile, connection status, and so on. 2.1 Reset Circuit The RN42/RN42N contains a weak internal pull-up to VCC, and the reset polarity is active low.
PAGE 8
RN42/RN42N FIGURE 2-2: RN42N RECOMMENDED PCB FOOTPRINT FIGURE 2-4: Top View RN42N MODULE MOUNTING DETAILS 7.3 8.9 10.5 Top View 20.0 19.7 0.70mm 2.00mm 16.0 14.8 13.6 12.4 11.2 10.0 8.8 7.6 6.4 5.2 4.0 2.8 0.7 0.0 0.80mm 0.0 1.1 2.6 3.6 4.9 6.1 7.3 8.5 9.8 10.8 12.3 13.4 Shield Pads 4 Corners 1.0 x 1.8mm Do not locate vias or surface traces under Shield Pads Note: Dimensions are in millimeters FIGURE 2-3: Example U.
PAGE 9
RN42/RN42N FIGURE 2-5: RN42 HOST PCB EXAMPLE LAYOUT RN42 RN42 Best RN42 No Copper in these areas RN42 Okay Okay Okay 2.5 External Antenna Types (RN42N) The RN42N module’s antenna pin (pin 26) provides a 50-ohm impedance to external antennas. Pin 25 can connect directly to a coaxial cable or to an antenna connector such as a U.FL or reverse polarity SMA. The PCB trace from pin 26 to the coaxial cable or connector should be less than 0.2 inches (5 mm) for minimum loss and the best impedance match.
PAGE 10
RN42/RN42N 2.7 Soldering Recommendations The RN42/RN42N wireless module was assembled using standard lead-free reflow profile IPC/JEDEC JSTD-020. The module can be soldered to the host PCB using standard leaded and lead-free solder reflow profiles.
PAGE 11
RN42/RN42N 2.10 Application Schematic Figure 2-7 shows an example application circuit. This schematic is for the RN-42-EK development tool. For details on how to connect RN42/RN42N to a microcontroller, see Section 1.1 “MCU Interface”. FIGURE 2-7: EXAMPLE APPLICATION CIRCUIT M1 RN42 Module 3.3V VDD UART_TX GND UART_RX 0 SPI _SS 22 PI O4 21 PI O5 20 PI O3 19 PI O2 470 Connection Status D2 R3 PI O8 Red LED 470 18 17 Activity 16 CT S 15 RT S 14 TX D 13 RX D U1 TC1185 3.
PAGE 12
RN42/RN42N 3.0 REGULATORY APPROVAL This section outlines the regulatory information for the RN42 module for the following countries: • • • • • • • • United States Canada Europe Australia New Zealand Japan Korea Taiwan 3.1 United States The RN42 module has received Federal Communications Commission (FCC) CFR47 Telecommunications, Part 15 Subpart C “Intentional Radiators” modular approval in accordance with Part 15.212 Modular Transmitter approval.
PAGE 13
RN42/RN42N 3.1.2 RF EXPOSURE All transmitters regulated by FCC must comply with RF exposure requirements. KDB 447498 General RF Exposure Guidance provides guidance in determining whether proposed or existing transmitting facilities, operations or devices comply with limits for human exposure to Radio Frequency (RF) fields adopted by the Federal Communications Commission (FCC). From the FCC Grant: Power Output listed is conducted. This module must be installed by the OEM or OEM integrator.
PAGE 14
RN42/RN42N 3.3 Europe The RN42 module is an R&TTE Directive assessed radio module that is CE marked and has been manufactured and tested with the intention of being integrated into a final product. The RN42 module has been tested to R&TTE Directive 1999/5/EC Essential Requirements for Health and Safety (Article (3.1(a)), Electromagnetic Compatibility (EMC) (Article 3.1(b)), and Radio (Article 3.2) and are summarized in Table 3-1: European Compliance Testing. A Notified Body Opinion has also been issued.
PAGE 15
RN42/RN42N TABLE 3-1: RN42 EUROPEAN COMPLIANCE TESTING Certification Standards Article Laboratory Safety EN 60950-1:2006+A11:2009+A1:2010+A12:2011 [3.1(a)] Health EN 62479:2010 EMC EN 301 489-1 V1.9.2 (2011-09) [3.1(b)] Worldwide Testing Services (Taiwan) Co., Ltd. EN 301 489-17 V2.2.1 (2012-09) Radio EN 300 328 V1.8.1 (2012-06) Notified Body Opinion 3.4 Australia The Australia radio regulations do not provide a modular approval policy similar to the United States (FCC) and Canada (IC).
PAGE 16
RN42/RN42N 3.6 Japan The RN42 module has received type certification and is labeled with its own technical conformity mark and certification number as required to conform to the technical standards regulated by the Ministry of Internal Affairs and Communications (MIC) of Japan pursuant to the Radio Act of Japan. Integration of this module into a final product does not require additional radio certification provided installation instructions are followed and no modifications of the module are allowed.
PAGE 17
RN42/RN42N The user’s manual should contain below warning (for RF device) in traditional Chinese: 3.8.2 HELPFUL WEB SITES National Communications Commission (NCC): http://www.ncc.gov.tw  2015 Microchip Technology Inc.
PAGE 18
RN42/RN42N 4.0 ORDERING INFORMATION Table 4-1 provides ordering information for the RN42 module. TABLE 4-1: ORDERING INFORMATION(1) Part Number(1) Firmware(2) Description RN42-I/RM 6.15 Class 2, 2.1+EDR, SPP profile RN42-I/RM615 6.15 Class 2, 2.1+EDR, SPP profile RN42-I/RM477 4.77 Class 2, 2.1+EDR, SPP profile RN42HCI-I/RM N/A Class 2, 2.0+EDR, HCI over UART RN42HID-I/RM 6.11 Class 2, 2.1+EDR, HID and SPP profiles RN42U-I/RM N/A Class 2, 2.0+EDR, HCI over USB RN42APL-I/RM 5.
PAGE 19
RN42/RN42N APPENDIX A: REVISION HISTORY Revision A (January 2015) This is the initial released version of the document in the Microchip format. This replaces Roving Networks RN42/RN42N Data Sheet.  2015 Microchip Technology Inc.
PAGE 20
RN42/RN42N NOTES: DS50002328A-page 20  2015 Microchip Technology Inc.
PAGE 21
RN42/RN42N THE MICROCHIP WEB SITE CUSTOMER SUPPORT Microchip provides online support via our WWW site at www.microchip.com. This web site is used as a means to make files and information easily available to customers.
PAGE 22
RN42/RN42N NOTES: DS50002328A-page 22  2015 Microchip Technology Inc.
PAGE 23
RN42/RN42N PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO.
PAGE 24
RN42/RN42N NOTES: DS50002328A-page 24  2015 Microchip Technology Inc.
PAGE 25
Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature.
PAGE 26
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