User's Manual

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Frequency Agility
Incorporation of automatic ability to change operating frequency helps the radio pair avoid
disruption due to on-channel interference. FCC rules mandate that products must tolerate
occasional interference. One of the best strategies for doing so is avoidance.
Radio Control
It is desirable that integration of this module into various products be as simple as possible.
This is achieved by use of the microcontroller to manage many basic radio and network
functions.
Interface
Pin # Pin Type Description
1 GND P Ground
2 VCC P Power supply
3 SLEEP I Sleep mode input
4 SCK I SPI clock
5 SDI DI SPI data input
6 SDO DO SPI data output
7 CS I SPI chip select
8 TX DO UART Tx
9 RX DI UART Rx
10 RESET I Reset
11 INT O Interrupt request output
12 GPIO I/O May be used for standalone
applications
Electrical Specifications
Transmit Current 200mA max
Receive Current 15 mA max
Sleep Current 5 uA max
Radiated Transmit Power 22.97 dBm EIRP typical
Radiated Receive Sensitivity 50 dBuV/m typical at 40 kbits/second