RN-21-U Roving Networks Inc, RN-21-U Datasheet - Page 10

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

Specifications of RN-21-U

• Frequency: 2.4GHz Center
• Data Rate - Maximum: 921kBaud
• Modulation Or Protocol: FHSS
• Applications: Bluetooth v2.0
• Power - Output: 16dBm
• Sensitivity: -86dBm
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Receiving: 60mA
• Current - Transmitting: 100mA
• Data Interface: PCB, Surface Mount
• Memory Size: 8MByte Flash
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

www.rovingnetworks.com
SP,<text>
SQ,<num>
SR,<address>
SS,<text>
ST,<number>
809 University Avenue
Security pin code, 20 character maximum. Each time the device success pairs, the BT
address will be saved. Up to eight addresses can be stored on a first in first out bases.
To erase all stored pairings, reset the passkey command. You can use the same
value that is already set.
Example: SP,secretcode
Special configuration commands, num is a decimal number with the following
interpretation.
Store remote address, 12 hex digits, (6 bytes) no spaces or characters between digits
Example: SR,00A053112233
NOTE there are two special characters that can be used for the address parameter:
Service Name (1 to 20 characters ).
Example: SS,SerialPort
Configuration timer, number of seconds (range= 0 to 255 decimal) to allow remote
configuration over Bluetooth after power up in Slave Mode. In all Master modes, the
remote configuration timer is set to 0 (no remote configuration). In Trigger Master
Mode, the configuration timer is used as an idle timer to break the connection after
time expires with no characters being received.
Examples:
•
Command
Los Gatos, CA 95032
•
•
128
256
16
0
4
SR,Z will erase any stored address.
SR,I will write the last address seen using the inquiry command. This can be
helpful when you just have only one other device in range.
ST,0
ST,60
ST,255
Disable all special commands
Disable reading the values of GPIO3 and GPIO6 on power-up. This
command is used when reprogramming GPIO3 and GPIO6 from their
default configuration.
Configures the firmware to optimize for low latency data transfers
rather than throughput.
Allow for fast reconnect. This allows applications to disconnect and
reconnect back to back quickly.
Set 2 stop bit mode on the UART.
~ 10 ~
disables remote configuration
sets remote configuration to 60 seconds (default value)
enables remote configuration forever
•
Tel [phone]
sets the remote Bluetooth address to 00A053112233
service name set to “SerialPort”
rn-bluetooth-um Version 4.77 1/24/2011
sets pin code to “secretcode”
Advanced User Manual
Description
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