433MHz RF Wireless UART Module (HC-11 , HC11)


 The serial RF module is a low costhigh performance transparent FSK transceiver with operating at 434 MHz. It features small sizehigh output powerhigh sensitivitylong transmission distance and high communication data rate with auto set up for communication change and data receiving and transmission control. With the UART interfaceit is easy to realize the wireless data transmission with only providing the UART data. It is flexible for the users to set the UART baud ratefrequencyoutput powerdata ratefrequency deviationreceiving bandwidth etc parameters.
 This module can not work individuallyat least 2 pcs would be needed to create the communication.


  • Working frequency: 434Mhz
  • Supply voltage: 3.3V to 5VDC
  • Communication distance: 200 M Straight Line
  • Serial baud rate: 1.2Kbps to 115.2Kbps (default 9.6Kbps)
  • Receiving sensitivity: -112dBm to -95dBm
  • Transmit power: -30dBm to 10dBm
  • Interface protocol: UART/TTL
  • Operating temperature: -40? to +85?
  • Dimensions: 27.8 x 14.4 x 4mm


  • Frequency band is 434M
  • Multiple types of serial port transparent transmission modes have respective featuresand the mode is changed by command
  • Absolutely easy to use
  • Low current consumption; the idle current is 80μA3.5mA or 22mAdepending on the selected mode
  • All functions and parameters are changed by commandand can be saved in case of power failure


7.95 JD
11 JD
Out of stock

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