RN-21-U Roving Networks Inc, RN-21-U Datasheet - Page 2

• 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

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Appendix A: Bluetooth Evaluation Board ....................................................................................................... 27
Appendix B: Command Quick Reference ....................................................................................................... 30
Appendix C: Factory Default Settings ............................................................................................................ 32
Appendix D: Firmware Revision History ....................................................................................................... 33
1.1
3
3.1
3.2
3.3
3.4
1.2
4.1
4.2
4.3
4.4
5.1
5.2
5.3
5.4
5.5
6.1
6.2
7.1
7.2
7.3
7.4
7.5
10.1
10.2
10.3
Power Terminals .......................................................................................................................................... 27
Default LED status ...................................................................................................................................... 27
Introduction ............................................................................................................................................... 3
Modes of Operation ................................................................................................................................... 4
Command Reference ................................................................................................................................. 8
Power Management ................................................................................................................................. 16
Profile Settings and Features ................................................................................................................... 19
Design Concerns ...................................................................................................................................... 21
Common Problems and Questions .......................................................................................................... 23
Discovery and Connection ...................................................................................................................... 24
www.rovingnetworks.com
Serial Adapter Configuration ............................................................................................................... 25
809 University Avenue
Making a Connection ........................................................................................................................ 3
Configuration .................................................................................................................................... 4
Command Mode vs. Data mode ....................................................................................................... 5
Local Configuration (via serial port) ................................................................................................ 5
Remote Configuration (via Bluetooth) ............................................................................................. 5
Using DIP switches and PIO for Configuration ............................................................................... 6
SET Commands ................................................................................................................................ 8
GET Commands ............................................................................................................................. 12
CHANGE Commands ..................................................................................................................... 12
ACTION Commands ...................................................................................................................... 13
GPIO Commands ............................................................................................................................ 15
Optimizing Inquiry (Discovery) and Page (Connection) Windows ............................................... 16
SNIFF mode .................................................................................................................................... 17
Enabling Deep Sleep ....................................................................................................................... 17
Disabling Output Drivers ................................................................................................................ 18
Lowering Transmit Power .............................................................................................................. 18
Alternate Profile Selection .............................................................................................................. 19
Using PIO as Modem Control Signals ............................................................................................ 19
Hardware Signals ............................................................................................................................ 21
Hardware Connections and Power .................................................................................................. 21
LED Status ...................................................................................................................................... 22
Optimizing for Latency or Throughput .......................................................................................... 22
Limitations of 7 Bit Data Mode ...................................................................................................... 22
Serial interface hardware flow control ............................................................................................ 25
Dip Switch Settings ........................................................................................................................ 26
Instant Cable Replacement ............................................................................................................. 26
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rn-bluetooth-um Version 4.77 1/24/2011
Advanced User Manual
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