RFBee User Manual v1.1
Table of contents
1 Overview ........................................................................................................................................................................... 2
1.1 Licensing .............................................................................................................................................................. 2
1.2 Specifications........................................................................................................................................................ 2
1.3 Electrical Characteristics ...................................................................................................................................... 3
1.4 Board layout ......................................................................................................................................................... 3
1.5 Microprocessor-Atmega168 ................................................................................................................................. 3
1.6 RF Transceiver-CC1101 ....................................................................................................................................... 3
1.7 Pin layout .............................................................................................................................................................. 4
1.8 Schematic.............................................................................................................................................................. 4
2 Hardware Installation ........................................................................................................................................................ 6
3 Configuration .................................................................................................................................................................... 8
3.1 Version .................................................................................................................................................................. 8
3.2 Out of the box ...................................................................................................................................................... 8
3.3 AT Commands ...................................................................................................................................................... 8
3.3.1 AT Format: ................................................................................................................................................... 8
3.3.2 Supported commands: ................................................................................................................................ 9
3.3.3 Output format ............................................................................................................................................. 11
3.4 Broadcasting ....................................................................................................................................................... 11
4 How to update firmware .................................................................................................................................................. 12
5 Revision History ............................................................................................................................................................. 13
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1 Overview
The RFBee is a RF module providing easy and flexible wireless data transmission between devices. It is based on a AVR
Atmega168 working as a fully functional Arduino connected via SPI to a TI CC1101 RF transceiver.
Features:
Range: Indoor/Urban: up to 50m; Outdoor line-of-sight: up to 120m;
Receiver Sensitivity: -95dBm
RF Data Transmission Rate: 4,800bps; 76,800bps
Working Frequency : 868MHz & 915MHz
Communication type: Point to Point, or Point to Multipoint.
Easy-to-Use Serial Interface and rich extendable ports
Easy-to-Use AT Command: Set working mode, Serial Baud Rate, etc.
Open source Hardware and Firmware
Socket compatible with the Xbee, so you can plug it into any Xbee socket as a quick replacement.
Note: only the Rx,Tx, VCC, GND pins are identical to the Xbee. RFbees will not communicate with Xbees, so
RFbees need to be used on both ends of the wireless connection.
1.1 Licensing
This documentation is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike License 3.0.
Source code of the Atmega 168 firmware used in the RFBee is licensed under GPL/LGPL, see source code files for details.
1.2 Specifications
Specification Value
Microprocessor Atmega168
PCB size 24.38mmx32.94mmx0.8mm
Indicators No
Power supply 3.3v
IO counts 9
ADC input 7(6 multiplexing with IO)
Program interface USB
Connectivity Socket compatible with XBee
Communication Protocol Uart(TTL)
Operating Frequency Band ISM 868MHz & 915MHz
Outline Dimension 24.38mmx32.94mmx15mm
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