The HC-12 44382A is a long-range, high-power 433MHz wireless transceiver module based on the Si4463 RF chip. Designed for reliable, low-latency serial communication, it offers transparent data transmission over distances up to 1 kilometer or more in open areas. Ideal for Arduino, microcontroller projects, IoT, telemetry, remote sensing, and industrial control systems.

Key Features:

• Long Range Communication – Up to 1000 meters in open space with a clear line of sight
• 433MHz Frequency – License-free ISM band, suitable for global use in many applications
• High Power Output – Up to 100mW (20dBm) RF transmission power
• Transparent Serial Transmission – Plug-and-play UART communication, no protocol overhead
• Adjustable Baud Rate & Channels – Multiple channels and communication parameters configurable via AT commands
• Full-Duplex Serial – Simple TX/RX operation with real-time data handling
• Compact Design – Fits easily into embedded and portable systems

Specifications:

• Model: HC-12 44382A
• Frequency: 433.4 MHz to 473.0 MHz (selectable)
• Modulation: GFSK
• Communication Range: Up to 1000 meters (in open, interference-free conditions)
• Transmission Power: ≤ 100mW (20dBm)
• Sensitivity: -117 dBm (at 5000bps)
• Operating Voltage: 3.2V to 5VDC
• Current Consumption: 100mA (transmit), 16mA (receive), 22µA (sleep)
• Serial Interface: UART (TTL level)
• Baud Rate: 1200 to 115200 bps (default 9600 bps)
• Channel Count: 100 channels (spacing 400KHz)
• AT Commands: Supported (for configuration)
• Antenna Interface: IPEX/U.FL connector or solder pad
• Working Temperature: -40°C to +85°C

Applications:

• Remote control systems
• Wireless data acquisition (sensors/telemetry)
• Industrial automation and robotics
• Agricultural field monitoring
• Home automation (IoT nodes)
• Point-to-point or point-to-multipoint wireless networks