RN-21 Roving Networks Inc, RN-21 Datasheet - Page 19

• Manufacturer Part Number: RN-21
• Description: MODULE BLUETOOTH 2.0/EDR CLASS1
• Manufacturer: Roving Networks Inc

Specifications of RN-21

• Frequency: 2.4GHz
• Data Rate - Maximum: 921kBaud
• Modulation Or Protocol: Bluetooth v2.0+EDR, Class 1 & 2
• Applications: Bluetooth v2.0
• Power - Output: 15dBm
• Sensitivity: -80dBm
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Receiving: 35mA
• Current - Transmitting: 65mA
• Data Interface: PCB, Surface Mount
• Memory Size: 8MB Flash
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Wireless Frequency: 2.402 GHz to 2.48 GHz
• Interface Type: USB, UART, PCM
• Data Rate: 921.6 Kbps
• Modulation: FHSS
• Operating Voltage: 3.3 VDC
• Antenna: Chip
• Board Size: 21.8 mm x 12.5 mm x 2 mm
• Operating Temperature Range: - 40 C to + 85 C
• Security: 128 bit Encryption
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 740-1006

6
6.1 Alternate Profile Selection
6.2 Using PIO as Modem Control Signals
Profile Settings and Features
www.rovingnetworks.com
will be returned. Leading zeroes will not be displayed. The value of GY may not match the value in the O
command due how the value is used as described above
The default profile is Serial Port Profile (SPP). The firmware also supports the DUN profile in both master
and slave modes.
To change the profile, use the “S~,<num>” command.
The most common use of DUN profile is to enable a BT client to connect to a dialup modem. For this mode,
use profile 1 (DUN DCE) via command “S~,1” . You may also want to set the Class Of Device so that
clients can recognize the device as a Bluetooth modem. The correct COD for a Bluetooth modem is
0x040210. This can be set using the commands below:
“SC,0004”
“SD,0210”
A new option available with version 4.74 firmware allows connection to Either SPP or DUN (but not both at
the same time) Both Services are displayed when a host discovers services, and either one can be chosen
and connected to. It is also possible to connect using SPP profile, disconnect, and then connect using DUN
profile.
The Firefly and RN-XX modules have the ability to replicate the required modem control hardware signals
automatically once a connection is made. These signals are transferred outside the data channel (using
RFCOMM control channels) and are automatically updated. The default SPP profile (profile=0) does NOT
drive these signals or report back inputs. If DUN or MDM profiles are enabled (profile =1,2, or 3), the
following signals are automatically driven and received.
Inputs: (read and sent back over Bluetooth to the remote host), Inputs are ACTIVE LOW.
PIO3 = DCD ( switch 2)
<num>
809 University Avenue
0
1
2
3
4
SPP
DUN -DCE
DUN-DTE
MDM SPP
SPP and DUN-DCE
Profile
•
Los Gatos, CA 95032
PIO6 = DSR (switch 3)
Default , no modem control
Slave or gateway
Master or client
With modem control signals
Multi-profile
~ 19 ~
•
Tel [phone]
Comments
PIO7 = CTS (switch 4).
rn-bluetooth-um Version 4.77 1/24/2011
Advanced User Manual
• [e-mail]