The HC-12 433 SI4463 Wireless Serial Module is a low-power, long-range transceiver based on the Si4463 chip with a working frequency of 433MHz. Its specifications include a 3.2V to 5.5V operating voltage, a maximum 20dBm transmit power, and a transmission distance of up to 1km in open space. It uses a simple UART serial interface, supports adjustable data rates up to 115200 bps, and comes with a spring antenna but can also use an external antenna socket.

Key Features

• Frequency: 433MHz (working frequency band: 433.4–473.0MHz)
• Operating Voltage: 3.2V–5.5V
• Transmit Power: 100mW (20dBm)
• Transmission Distance: Up to 1000 meters (1km) in open space
• Serial Interface: UART (TTL level)
• Data Rate: Adjustable up to 115200 bps
• Antenna: Onboard spring antenna, with an option for an external antenna via a socket
• Operating Temperature: -40°C to +85°C
• Supply Current: Approximately 16mA (transmitting) and 17.5mA (receiving)
• Dimensions: 27.8mm x 14.4mm x 4mm (approximate, including antenna seat)
• Modes: Transparent and fixed-point transmission modes
• Compatibility: Works with microcontrollers like Arduino and Raspberry Pi

Package Includes:

1 x HC-12 433 SI4463 Wireless Serial Module