HC-12 SI4463: Wireless Serial Transceiver - 433 MHz

Frequency: The HC-12 module operates in the 433 MHz ISM (Industrial, Scientific, and Medical) band, making it suitable for communication over relatively long distances.

Transceiver: The module is a full-duplex transceiver, which means it can both transmit and receive data. This bidirectional capability makes it suitable for two-way communication.

RF Power: The HC-12 module typically has selectable RF power settings, allowing you to adjust the transmission power to match your specific requirements and distance considerations.

UART Communication: Communication with the HC-12 module is typically done using UART (Universal Asynchronous Receiver-Transmitter) serial communication. You can send data to and receive data from the module via UART.

Operating Voltage: The module usually operates at a voltage between 3.2V and 5.5V. It is important to provide a stable power supply within this range.

Antenna: The HC-12 module typically has an onboard helical antenna, which is suitable for many applications. However, it also supports an external antenna connection, which can further improve range.

Operating Modes: The module supports various operating modes, including transparent serial mode and fixed-point wireless transmission mode. In transparent serial mode, it functions similar to a wireless UART cable, transmitting data between two devices.

Communication Range: The HC-12 module can provide communication ranges of several hundred meters or more in open areas with a clear line of sight, depending on the RF power setting and environmental factors.

Error Correction: It supports error correction and data retransmission to improve the reliability of wireless communication.

AT Commands: The module can be configured and controlled using AT commands. These commands allow you to set various parameters, such as the operating frequency, transmission power, and communication mode.

Multiple Channels: The HC-12 module supports multiple channels within the 433 MHz band, allowing multiple HC-12 modules to operate in the same vicinity without interference.

Applications: The HC-12 module is used in a wide range of applications, including remote control systems, sensor data transmission, wireless telemetry, and remote monitoring.