HC-12 SI4438/4463 Wireless Module Long-Distance 433M Wireless Serial Port Module UART InterfaceItem NO.: HC-12

HC-12 SI4438/4463 Wireless Module

Module Overview:

The HC-12 wireless serial communication module is a new generation of multi-channel embedded wireless data transmission module, with a wireless operating frequency range of 433.4-473.0MHz and the ability to set multiple channels in steps of 400KHz, totaling 100. The maximum transmission power of the module is 100mW (20dBm), with a reception sensitivity of -116dBm at 5000bps air baud rate, and a communication distance of 1000 meters in open areas.

The module adopts a hole packaging method and can be soldered with patches. The module size is 27.4mm * 13.2mm * 4mm (including antenna cap, excluding spring antenna), which is very convenient for customers to embed into the application system. There is a PCB antenna base ANT1 on the module, and users can choose one of the antennas according to their usage requirements.

The module contains an MCU internally, so users do not need to program the module separately. Various transparent transmission modes only need to send and receive serial port data, making it convenient to use. The module adopts multiple serial port transparent modes, and users can choose using AT commands according to their usage requirements. The average operating current in idle state for four modes FU1, FU2, FU3, and FU4 is 3.6mA and 80 respectively μ A. 16mA and 16mA, with a maximum operating current of 100mA (under full power transmission state)

Module Features:

1. Long distance wireless transmission (in open ground 1000 meters/FU4 mode, with an airborne baud rate of 2.500bps)

2. Operating frequency range (433.4-473.00MHz, up to 100 communication channels)

3. Maximum 100mW (20dBm) transmission power (8 power levels can be set)

4. Four working modes to adapt to different application scenarios

5. Built in MCU for communication with external devices through serial port

6. Unlimited number of bytes sent at once (FU1/FU3 mode)

7. The module supports one-to-one, one-to-many, and many-to-many connection transparent transmission

Module Parameters:

● Model: HC-12

● Communication interface: UART 3.3V-5V TTL level

● Operating voltage: 3.2-5.5V

● Communication level: 3.3V/5V level

● Transmission power: 20dBm (MAX)

● Reference distance: 1000m

● Module size: 27.4 * 13.2 * 4mm

● Operating frequency range: 433.4-473.00MHz

● Antenna interface: spring antenna/antenna socket

● Operating humidity: 10% -90%

● Operating temperature: -25 ℃ -+75 ℃