RN-41-SM / RN-42-SM
www.rovingnetworks.com
rn-41sm-ds 7/12/2010
Class 1 / Class 2 Bluetooth®
Socket Module
Features
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Socket module with UART interface
3.3/5V logic CMOS I/O (RS-232 as well)
Fully qualified Bluetooth 2.1/2.0/1.2/1.1 module
Bluetooth v2.1+EDR support
Low power
(8-30mA connected, 2mA idle)
UART supports baud rates from 1200 to 3Mbit
Sustained SPP data rates - 240Kbps (slave),
300Kbps (master)
HCI data rates - 1.5Mbps sustained, 3.0Mbps
burst in HCI mode
HCI mode, or SPP/DUN software stacks
available.
Embedded Bluetooth stack profiles included
(requires no host stack):
GAP, SDP, RFCOMM
and L2CAP, with SPP, DUN and HID profiles.
RS232 on board with power enable on IO pin.
Bluetooth SIG Qualified, End Product Listing
Class 1 high power amplifier (RN-41-SM only)
with on board ceramic RF chip antenna.
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Certifications: FCC, ICS, CE
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Environmentally friendly, RoHS compliant
Applications
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Cable replacement
Barcode scanners
Measurement and monitoring systems
Industrial sensors and controls
Medical devices
Asset tacking
Description
The RN-41-SM / RN-42-SM is a though hole, low
power and highly flexible Bluetooth socket module .
This module supports SPP/DUN and HCI Bluetooth
interface protocols, is simple to design in and fully
certified. With its high performance on chip antenna
and support for Bluetooth® Enhanced Data Rate
(EDR), the RN-41 / RN-42 delivers up to 3 Mbps data
rate for distances to 100M / 20M. The RN-41/RN-42
socket module is the perfect method for adding
Bluetooth wireless capability to existing products
without redesign, saving you significant time and
money.
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Block Diagram
Crystal
VCC
GND
PIO4
PIO5
PIO6
USB
UART
PCM
RF
Switch
PA
BALUN
CSR BlueCore-04
External
Flash
Memory
809 University Avenue
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Los Gatos, CA 95032
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Tel (408) 395-6539
• info@RovingNetworks.com
RN-41-SM/RN-42-SM Data Sheet
www.rovingnetworks.com
7/12/2010
Overview
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Baud rate speeds: 1200bps up to 921Kbps, non-standard baud rates can be programmed.
RN-41: Class 1 radio, 330’ (100m) distance, 12dBm output transmitter, -80dBm typical receive sensitivity
RN-42: Class 2 radio, 60’ (20m) distance, 4dBm output transmitter, -80dBm typical receive sensitivity
Frequency 2402 ~ 2480MHz,
FHSS/GFSK modulation, 79 channels at 1MHz intervals
Secure communications, 128 bit encryption
Error correction for guaranteed packet delivery
UART local and over-the-air RF configuration
Auto-discovery/pairing requires no software configuration (instant cable replacement).
Auto-connect master, IO pin (DTR) and character based trigger modes
Environmental Conditions
Parameter
Temperature Range (Operating)
Temperature Range (Storage)
Relative Humidity (Operating)
Relative Humidity (Storage)
Value
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-40 C ~ 85 C
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-40 C ~ 85 C
≤90%
≤90%
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Electrical Characteristics (RN-41-SM)
Parameter
Supply Voltage (DC)
Min
3.0
Typ.
3.3
Max.
3.3V on
Header A,
16V on
Header B
60
85
Unit
V
RX Supply Current
TX Supply Current
35
65
25
30
8
2.5
mA
mA
mA
mA
mA
mA
Average power consumption
Standby/Idle (default settings)
Connected (normal mode)
Connected (low power Sniff)
Standby/Idle (Deep sleep enabled)
250uA
Electrical Characteristics (RN-42-SM)
Parameter
Supply Voltage (DC)
Min
3.0
Typ.
3.3
Max.
3.3V on
Header A,
16V on
Header B
Unit
V
Average power consumption
Radio ON* (Discovery or Inquiry
window time)
Connected Idle (No Sniff)
Connected Idle (Sniff 100 milli secs)
Connected with data transfer
Deep Sleep Idle mode
40
25
12
45
26
mA
mA
mA
mA
uA
40
50
809 University Avenue
•
Los Gatos, CA 95032
•
Tel (408) 395-6539
• info@RovingNetworks.com
~2~
RN-41-SM/RN-42-SM Data Sheet
www.rovingnetworks.com
7/12/2010
Radio Characteristics (RN-41)
Parameter
Sensitivity @ 0.1%BER
Freq.
(GHz)
2.402
2.441
2.480
2.402
2.441
2.480
2.402
2.441
2.480
Min
-
-
-
15.0
15.0
15.0
-
-
-
-
-
-
140
140
140
140
140
140
Typ
-80
-80
-80
16.0
16.0
16.0
5
5
5
900
15
13
165
165
165
190
190
190
Max
-86
-86
-86
Bluetooth
Specification
≤
-70
Units
dBm
dBm
dBm
dBm
dBm
dBm
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
RF Transmit Power
Initial Carrier Frequency
Tolerance
20dB bandwidth for modulated
carrier
Drift (Five slots packet)
Drift Rate
f1
avg
Max Modulation
≤
15
75
75
75
1000
-
-
175
175
175
-
-
-
75
≤
1000
40
20
>140
f2
avg
Min Modulation
2.402
2.441
2.480
2.402
2.441
2.480
115
Radio Characteristics (RN-42)
Parameter
Sensitivity @ 0.1%BER
Freq.
(GHz)
2.402
2.441
2.480
2.402
2.441
2.480
2.402
2.441
2.480
Min
-
-
-
0
0
0
-
-
-
-
-
-
140
140
140
140
140
140
Typ
-80
-80
-80
2
2
2
5
5
5
900
15
13
165
165
165
190
190
190
Max
-86
-86
-86
4
4
4
75
75
75
1000
-
-
175
175
175
-
-
-
Bluetooth
Specification
≤
-70
Units
dBm
dBm
dBm
dBm
dBm
dBm
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
RF Transmit Power
Initial Carrier Frequency
Tolerance
20dB bandwidth for modulated
carrier
Drift (Five slots packet)
Drift Rate
f1
avg
Max Modulation
≤
4
75
≤
1000
40
20
>140
f2
avg
Min Modulation
2.402
2.441
2.480
2.402
2.441
2.480
115
809 University Avenue
•
Los Gatos, CA 95032
•
Tel (408) 395-6539
• info@RovingNetworks.com
~3~
RN-41-SM/RN-42-SM Data Sheet
www.rovingnetworks.com
7/12/2010
Pin Description
NOTE: The RN-41 and the RN-42 are pin and functionally compatible.
Header A
1
2
3
4
5
6
7
8
9
10
11
12
Header A
24
23
22
21
20
19
18
17
16
15
14
13
RN-41-SM/
RN-42-SM
Top View
1 2 3 4 5 6
Header B
3/5V TTL signaling
5-16 VDC power
Signals on
Header A
except pins 4, 5, 6 and 7 have the following logic levels.
Input logic level LOW is from -0.4 v to 0.8 V, input high is from 2.1 to 3.4V.
Output logic level LOW max is 0.2 and output HIGH is minimum is 2.8.
All I/O’s except reset default to weak pull down.
Header A
Pin
1
2
3
4
5
6
7
8
9
10
11
12
Name
PIO6
PIO7
RESET
RX
TX
RTS
CTS
VB2
SHUT
DOWN
PRS
VCC 3.3
GND
Description
Set BT master (HIGH=auto-master mode)
Set Baud rate (HIGH = force 9600, LOW = 115K or firmware
setting)
Active LOW reset
RS232 receive input (see note below)
RS232 transmit output (see note below)
RS232 RTS (see note below)
RS232 CTS (see note below)
Analog battery monitor signal (Not currently supported in
firmware)
Shuts down power to the entire module.
RS232 power
Short to pin 11 VCC to enable RS232
3.3V regulated power input
Ground
Default State
Input with weak pulldown
Input with weak pulldown
Input to RN41 with 1K pullup
No Connect
Active LOW
809 University Avenue
•
Los Gatos, CA 95032
•
Tel (408) 395-6539
• info@RovingNetworks.com
~4~
RN-41-SM/RN-42-SM Data Sheet
www.rovingnetworks.com
13
14
15
16
17
18
19
20
21
22
23
24
VB1
PIO8
PIO9
PIO10
PIO11
RXDB
TXDB
RTSB
CTSB
PIO2
PIO3
PIO4
Analog battery monitor signal
Status (RF data rx/tx)
IO
IO (remote DTR signal)
IO (remote RTS signal )
UART receive
UART transmit
UART RTS, goes HIGH to disable host transmitter
UART CTS, if set HIGH, disables TX transmitter
Status, HIGH when connected, LOW otherwise
Auto discovery = HIGH
Set factory defaults
7/12/2010
No Connect
Output
Input with weak pulldown
Input with weak pulldown
Input with weak pulldown
Input
Output
Output
input
Output from RN41
Input t with weak pulldown
Input with weak pulldown
Note: When connecting to the RS232 signals on header A:
You must connect pin 10 (PRS) to pin 11
(VCC). This powers the RS232 chip. Also make sure that R6 and R8 are installed (default condition).
Header B
1
2
3
4
5
6
RX
TX
RTS
CTS
VDD
GND
Receive UART
Transmit UART
RTS UART, goes HIGH to disable host transmitter
CTS UART, if set HIGH, disables transmitter
5-16 VDC
Ground
Input to module
Output from module
Tie to RTS if NOT driven
Note: To use Header B you must remove resistors R6 and R8.
Removing these resistors disconnects
the RX (header A pin 4) and CTS (header A pin 7) signals from the RS232 chip.
R6
R8
809 University Avenue
•
Los Gatos, CA 95032
•
Tel (408) 395-6539
• info@RovingNetworks.com
~5~
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