HC-12 Wireless Transceiver Modules 433Mhz are wireless serial port communication modules, It is based on SI4463 RF chip, it has built in microcontroller, and can be configured using AT commands, Maximum output power is 100mW (20dBm) and receiver sensitivity differs from -117dBm to -100dBm, depending on transmission speed. It accepts 3.2V-5.5V and can be used with 3.3V and 5V UART voltage devices (3.3V safe).

Specification

• Working frequency: 433.4MHz to 473.0MHz


• Supply voltage: 3.2V to 5.5VDC


• Communication distance: 1,000m in the open space


• Serial baud rate: 1.2Kbps to 115.2Kbps?default 9.6Kbps?


• Receiving sensitivity: -117dBm to -100dBm


• Transmit power: -1dBm to 20dBm


• Interface protocol: UART/TTL


• Operating temperature: -40? to +85?


• Dimensions: 27.8mm x 14.4mm x 4mm


• Long-distance wireless transmission (1,000m in open space/baud rate 5,000bps in the air)


• Working frequency range (433.4-473.0MHz, up to 100 communication channels)


• Maximum 100mW (20dBm) transmitting power (8 gears of power can be set)


• Three working modes, adapting to different application situations.


• Built-in MCU, performing communication with external device through serial port.


• The number of bytes transmitted unlimited to one time.