RN-21-U Roving Networks Inc, RN-21-U Datasheet - Page 13

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RN-21-U

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

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
4.3
www.rovingnetworks.com
ACTION Commands
$$$
+
C
C,<address>
CF<address>
CFI
CFR
CT<address>,<timer> Connect with TIMER. The device will NOT use or store the remote address, rather
F,1
809 University Avenue
Example: U,9600,E
Enter command mode Characters are passed as data until this exact sequence is
seen. If any bytes are seen before or after the $$$ characters in a 1 second window,
command mode will not be entered and these bytes will be passed on to other side.
NOTE: The device will only enter command mode if it is within the configuration
timer window (60 seconds from power up by default). In master mode the
configuration timer is set to zero.
The character string to enter command mode is configurable using the S$ command
Use --- exit command mode.
Local echo. Toggle local echo of RX chars in command mode. (default is off ).
Attempt to connect to the REMOTE stored address.
Connect to the address specified in hex format. The address is also stored as the
REMOTE address.
Connect and immediately go into FAST data mode. NOTE: you will not be able to
enter command mode while connected. PIO6 can still be used to disconnect. Thus
PIO6 should be held HIGH before sending this command, as lowering PIO6 will
cause a disconnect.
Connect and immediately go into FAST data mode using the LAST address found
from the Inquiry command. NOTE: you will not be able to enter command mode
while connected. PIO6 can still be used to disconnect.
Connect and immediately go into FAST data mode using the REMOTE address.
Similar to the C command but bypasses the configuration timer.
will make a connection to the <address> (REQUIRED). The device will
automatically disconnect after 7 seconds if no data is seen from UART or BT. An
optional timer value can be entered to change the timer. This value is in ¼ seconds.
So for a 30 second timer, use 120 as the value. The maximum value is 255 (64
seconds)
Go into fast data mode, ends configuration immediately.
Los Gatos, CA 95032
~ 13 ~
Tel (408) 395-6539
Exit command mode. “END” will be displayed.
Sets baudrate to 9600, parity even.
rn-bluetooth-um Version 4.77 1/24/2011
Advanced User Manual
• info@RovingNetworks.com

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