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The serial RF module is a low cost, high performance transparent FSK transceiver with operating at 434 MHz. It features small size, high output power, high sensitivity, long transmission distance and high communication data rate with auto set up for communication change and data receiving and transmission control. With the UART interface, it 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 rate, frequency, output power, data rate, frequency deviation, receiving bandwidth etc parameters. This module can not work individually, at least 2 pcs would be needed to create the communication. Please also note that this module do not work with the 433Mhz Serial RF Transmitter Module HC-12. Please solder the Antenna as below:
Frequency band is 434M
Multiple types of serial port transparent transmission modes have respective features, and the mode is changed by command
Absolutely easy to use
Low current consumption; the idle current is 80μA, 3.5mA or 22mA, depending on the selected mode
All functions and parameters are changed by command, and can be saved in case of power failure
Working frequency: 434Mhz
Supply voltage: 3.3V to 5VDC
Communication distance: 1m to 40m indoor
Serial baud rate: 1.2Kbps to 115.2Kbps （default 9.6Kbps）