433MHZ SERIAL RF MODULE 1KM (HC-12 , HC12)
The HC-12 433MHz Serial RF Module is a long-range wireless communication module designed for reliable serial data transmission up to 1km in open space. Operating in the 433.4–473MHz frequency band, it supports multiple channels and transparent UART communication, making it easy to integrate with microcontrollers. With low power consumption, adjustable transmission power, and built-in MCU, it is ideal for IoT systems, remote control, and wireless sensor networks.
وحدة HC-12 433MHz Serial RF هي وحدة اتصال لاسلكي طويلة المدى تصل إلى 1000 متر في المساحات المفتوحة. تعمل ضمن نطاق التردد 433.4–473MHz وتدعم قنوات متعددة واتصال تسلسلي شفاف عبر UART. تتميز باستهلاك منخفض للطاقة وإعدادات قدرة إرسال متعددة، مما يجعلها مناسبة لمشاريع إنترنت الأشياء، والتحكم عن بعد، وشبكات الحساسات اللاسلكية.
The HC-12 433MHz Serial RF Module is a powerful wireless serial communication solution designed for long-distance data transmission between microcontrollers and embedded systems. It operates in the 433MHz ISM band (433.4–473.0MHz) and provides stable communication up to 1000 meters in open environments.
This module uses a built-in MCU and supports transparent UART communication, meaning data sent through the serial port is automatically transmitted wirelessly without additional encoding or programming. It simplifies wireless communication between devices such as Arduino, ESP8266, and other microcontrollers.
The HC-12 supports multiple channels (up to 100 channels) with a 400kHz step size, allowing flexible network configuration and reduced interference. It also offers multiple working modes (FU1, FU2, FU3) for balancing power consumption and performance.
With adjustable transmission power (up to 20dBm) and high receiver sensitivity, the module ensures stable and reliable communication even in noisy environments. Its low power consumption makes it suitable for battery-powered and remote applications.
Specifications
- Model: HC-12 433MHz Serial RF Module
- Frequency Range: 433.4 – 473.0 MHz
- Communication Distance: Up to 1000m (open space)
- Interface: UART / TTL Serial
- Supply Voltage: 3.2V – 5.5V DC
- Serial Baud Rate: 1200bps – 115200bps (default 9600bps)
- Transmit Power: -1dBm to 20dBm (adjustable)
- Receiver Sensitivity: -117dBm to -100dBm
- Channels: 100 channels (400kHz step)
- Working Modes: FU1 / FU2 / FU3
- Idle Current Consumption:
- FU1: ~80µA
- FU2: ~3.6mA
- FU3: ~16mA
- Max Transmission Current: ~100mA
- Operating Temperature: -40°C to +85°C
- Dimensions: 27.8 × 14.4 × 4 mm
- Protocol: Transparent serial communication
Applications
- Wireless sensor networks
- Remote control systems
- Arduino and microcontroller communication
- IoT data transmission
- Industrial monitoring systems
- Smart agriculture systems
- Wireless telemetry systems
- Robotics communication
- Long-range data logging
- Home automation projects