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RFM12B 868MHz


  • Image 1
Price:
£6.00 (inc VAT) £5.00 (exc VAT)
SKU:
RFM12B
Weight:
10.00 Grams
Shipping:
Calculated at checkout


RFM12B RF transceiver module - as used on OpenEnergyMonitor modules (emonTx, emonGLCD etc.)

 

Up to 300m transmission (100m typical indoors)

Up to 115Kbps

Up to 28 nodes per network   

Up to 250 different network groups

3 different ISM band frequencies: 433Mhz (worldwide), 868Mhz (Europe), 915Mhz (USA & Australia only) . Note: frequency of a module is set in software, for best performance the frequency set should match the intended hardware frequency of the module. 

 

Hardware

SPI interface 

2.2-3.8V supply voltage

Low power – 0.3µA standby current 

 

Antenna  

868 1/4 wave = 82.2mm
868 1/2 wave = 164.3mm
868 full wave = 345.5mm

 

Documentation 

http://openenergymonitor.org/emon/buildingblocks/rfm12b-wireless

Datasheet: http://www.hoperf.com/pro/rf/cob/RFM12B.htm

Arduino Library: https://github.com/jcw/jeelib

Lots of info on RF12B from JeeLabs (author of JeeLib): http://jeelabs.org/?s=rfm12B


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