The HC-11 433MHz Wireless Serial Port Module is based on the TI C1101 ultra low-power wireless transceiver IC. As well as the C1101 wireless transceiver, the module also includes a microcontroller with preprogrammed firmware (no programming required by the user) that provides seamless connection via a TTL serial UART interface.
433.4-473.0MHz operation (depending on channel)
Ultra-low power consumption (3.5mA or 22mA depending on mode) with sleep option (80μA).
10dBm output power and high sensitivity providing long range in the open environment.
3V～6V operating voltage.
Serial pass through mode to replace the serial cable (half duplex).
IO pass through modes.
3V interface with 5V tolerance.
You can set the frequency and set the address, and dozens of instructions, automatic filter
8.Small size (13.5 × 28.2mm).
255 selectable addresses
20 selectable channels
Baud rate: 9600
Module address: 0
Tx Power: 8 (10dBm)
Pin definition and Rating
|VCC||1||3.3-5V||Integrated supply with on-chip linear regulator output within 3.3V-5V|
|RXD||3||CMOS input with weak internal pull-up||UART Data INput|
|TXD||4||CMOS output,tri-stable with weak internal pull-up||UART Data INput|
|Key||5||CMOS input with weak internal pull-up||AT Mode control|