RFM70 Demo
Datasheet REV1.0
RFM70 Demo Kit User Manual
HOPE MICROELECTRONICS CO.,LTD
Add: 4/F, Block B3, East Industrial Area, Huaqiaocheng, Shenzhen, Guangdong, China
Tel: 86-755-82973805
Fax: 86-755-82973550
Email: sales@hoperf.com
trade@hoperf.com
Website: http://www.hoperf.com
Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com
RFM70 Demo
Datasheet REV1.0
General
RFM70 Demo Kit is used mainly to demonstrate the function of RFM70
FSK module, such as RF distance, and also useful for faster code
development purpose. It consists of TX DEMO and RX DEMO.
Products Introduction:
1． RFM70 DEMO
RFM TX and RX
Module
Sensitivity LED
RX LED Power Indicator
TX LED
Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com
Frequency Selection
Power Selection
ACK\No_ACK Switch
Power Switch
Model Number
Test mode / Normal
mode Rate Selection
RFM70 Demo
Datasheet REV1.0
Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com
Quick Start
Parameter Setting
Attention: RF DEMO setting has to be matching with each other for frequency
and data rate so that RF link can be established.
1、Frequency(Channel)：with Frequency select， ON=1，OFF=0
SW1 SW2 Frequency
1 1 2.483GHz
1 0 2.460GHz
0 1 2.430GHz
0 0 2.410GHZ
2、Data Rate and ACK\No_ACK switch：With Data RATE select,ACK\No_ACK
switch, ON=1，OFF=0
SW1 Data Rate
1 2M
0 1M
SW2 ACK\No_ACK switch
1 ACK
0 No_ACK
3、TX Power select：ON=1，OFF=0
SW1 SW2 Power
1 1 5dB
1 0 0dB
0 1 -3dB
0 0 -7dB
4、Test Mode select： ON=1，OFF=0
SW1 SW2 Mode
1 1 TX-Test(Carrier testing)
1 0 RX-Test(sensitivity testing)
0 1 TX(Master)
0 0 RX(Slaver)
RFM70 Demo
Datasheet REV1.0
Tel: +86-755-82973805 Fax: +86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com
How to operate
1．RFM70 DEMO
1．Select frequency, data rate, RF tx power and working mode through dip
switch.
2. Switch on power，the microcontroller will configure the RFM module
according to selected parameter.
3. RF DEMO start to send out data packets with one second interval .
4.When the Master module have one transmission, the TX LED will blink
once to indicate the transmission. If the Slaver module received the data
packets and verified to be correct, the led on receiver will blink
once,and the Slaver will reply same packet data to the Master,The TX LED
on the Slaver will blink.When the Master received the data packet and
verified to be correct,the RX LED on the Master will blink.
Carrier testing:
When the test mode select 11, the module enter into carrier test mode,
The working frequency and power of module can be measured by the spectrum
analyzer.
Sensitivity:
When the test mode select 10, the module enter into the sensitivity test
mode, the module can be directly connected signal generator,then the
receiver sensitivity will measure.
Precautions:
1．Power supply range from 1.8V—3.6V
2． Dip switch setting for TX and and RX setting must be matching with each
other.
3． Once a different setting is needed, make sure to re-power up the
system again to make the setting valid.
