Description
The HC-12 SI4438 Wireless Serial Port Communication Module is a versatile and long-range wireless transceiver module that operates in the 433 MHz frequency band. It is commonly used for transparent data transmission between microcontrollers or systems without the need for complex wireless protocol handling. The module is based on the SI4438 chip, providing reliable and low-power communication for various applications.
Key Features:
- Wireless Frequency: 433 MHz for long-range communication.
- Long Range: Communication distance up to 1,000 meters (in open environments).
- Data Transmission: Supports transparent serial data communication at baud rates from 1,200 to 115,200 bps.
- Low Power Consumption: Low standby current (~16µA) makes it suitable for battery-powered applications.
- Adjustable Power Output: Configurable transmission power levels for optimizing range and power consumption.
- Simple Interface: Communicates with microcontrollers via standard UART interface.
- Multiple Channels: 100 communication channels to reduce interference with other devices operating in the same frequency range.
Applications:
- Wireless communication between microcontroller-based devices.
- Remote control systems for industrial and consumer electronics.
- Home automation systems for long-range sensor data transmission.
- Wireless data logging and monitoring systems.
- Internet of Things (IoT) projects requiring reliable long-distance communication.
Specification:
Parameter | Value |
---|---|
Operating Voltage | 3.2V to 5.5V DC |
Frequency Range | 433 MHz |
Communication Range | Up to 1,000 meters (in open spaces) |
Baud Rate | 1,200 to 115,200 bps |
Transmit Power | 100mW (configurable) |
Current Consumption | Transmit: ~100mA (at max power), Standby: ~16µA |
Modulation Mode | GFSK |
Number of Channels | 100 channels |
Operating Temperature | -40°C to 85°C |
Interface | UART (RXD, TXD, GND, VCC) |
Antenna Type | External antenna (SMA or wire) |
Dimensions | 27.8mm x 14.4mm |
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