HC-12 433Mhz 44382A Long Range Wireless RF Transceiver Module

Description:

This is a high power, long range and easy to use RF wireless transceiver module based on the popular SI4463 IC. It works at the 433 MHz comes with an external spring antenna and can work in ranges upto 600 meters (requires stable power supply, low data rate and low surrounding interference with line of sight). This is one the cheapest and easiest modules to do wireless communications using Arduino, Raspberry Pi and other micro controllers. Libraries and sample codes are available for Arduino and Raspberry Pi which will make it easier for you to start using the wireless module. Use it to do bidirectional communication between devices. It has a standard Serial interface, which means you can directly interface this module to any microcontroller without the need for any external circuit. This RF transceiver is perfect to making wireless robots, home automation, wireless transmission of audio and video, etc.

There is MCU inside the module, and user don’t need to program the module separately, and all transparent transmission mode is only responsible for receiving and sending serial port data, so it is convenient to use. The module adopts multiple serial port transparent transmission modes, and user could select them by AT command according to use requirements. The average working current of three modes FU1, FU2 and FU3 in idle state is 80uA, 3.6mA an 16mA respectively, and the maximum working current is 100mA (in transmitting state).

Features:

• Long Range upto 600 meters outdoors with LoS
• Long-distance wireless transmission (600m in open space/baud rate 5000 bps in the air)
• Working frequency range (433.4-473.0MHz, up to 100 user selectable communication channels)
• Maximum 100mW (20dBm) transmitting power (8 levels of power can be set)
• Three working modes, adapting to different application situations
• Built-in MCU, performing communication with external device through serial port
• Working frequency: 433.4MHz to 473.0MHz
• Supply voltage: 3.2V to 5.5VDC
• Serial baud rate: 1.2Kbps to 115.2Kbps?default 9.6Kbps?
• Receiving sensitivity: -117dBm to -100dBm
• Transmit power: -1dBm to 20dBm
• Interface protocol: UART/TTL
• Operating temperature: -40? to +85?
• Dimensions: 27.8mm x 14.4mm x 4mm
• Default range (open field test): About 600m (maximum communication distance adjustable reach 1000m, the baud rate is 5000 bps)
• Default idle current: 16MA (In different working modes operating current is different)
• Operating frequency range: 433.4-473.0MHz, up to 100 channels of communication
• Module support software upgrade
• Default factory settings: Mode FU3, baud rate is 9600 bps, communication channels CH001 (433.4M)

Specifications:

• Built-in MCU, performing communication with external device through serial port
• Working frequency: 433.4MHz to 473.0MHz
• Supply voltage: 3.2V to 5.5VDC
• Serial baud rate: 1.2Kbps to 115.2Kbps?default 9.6Kbps?
• Receiving sensitivity: -117dBm to -100dBm
• Transmit power: -1dBm to 20dBm
• Interface protocol: UART/TTL
• Operating temperature: -40? to +85?

Tutorial:

Package Includes:

• 1 x HC12 433Mhz 44382A Long Range Wireless RF Transceiver Module

This Hc-12 433mhz is a popular choice among hobbyists and professionals. The Hc-12 433mhz offers reliable performance for your projects.

About Hc-12 433mhz

HC-12 433Mhz 44382A Long Range Wireless RF Transceiver Module is available at Zbotic, India’s trusted electronics and robotics store. Manufactured by Generic, this product is designed for hobbyists, students, and professionals working on electronics, robotics, and DIY projects.

Product Details

• Brand: Generic
• SKU: AI0756
• Category: Bluetooth and NRF Modules

Why Buy from Zbotic?

Zbotic offers a wide range of electronics components, development boards, sensors, and robotics parts. All products are quality-checked and shipped within 24 hours. Free shipping on qualifying orders. We offer COD (Cash on Delivery) and secure online payment options. Our customer support team is available to help with technical queries about Hc-12 433mhz and other products.

Applications

Hc-12 433mhz can be used in a variety of projects including Arduino projects, Raspberry Pi builds, drone assembly, 3D printing, IoT applications, and educational experiments. Whether you are a beginner or an advanced user, this component provides the reliability and performance you need. Order your Hc-12 433mhz today and start building.

HC-12 433Mhz 44382A Long Range Wireless RF Transceiver Overview

The HC-12 433Mhz 44382A is a high-power, long-range RF transceiver module based on the SI4463 chipset. It operates in the 433.4 – 473.0 MHz band with built-in MCU and UART/TTL interface, ideal for serial wireless communication between microcontrollers like Arduino, Raspberry Pi and other TTL devices.

Key Features of HC-12 433Mhz 44382A Long Range Wireless RF Transceiver

• 433.4 – 473.0 MHz frequency range with external spring antenna for line-of-sight links up to 600 m
• Adjustable transmit power from –1 dBm to +20 dBm and high receive sensitivity (–117 dBm)
• Serial baud rate from 1.2 Kbps to 115.2 Kbps (default 9.6 Kbps) via UART/TTL
• Wide supply voltage 3.2 V – 5.5 VDC allows direct connection to 3.3 V or 5 V controllers
• Operating temperature –40 °C to +85 °C for reliable performance in harsh environments
• Genuine product, fast shipping from Zbotic with libraries and sample code for quick setup

Applications and Use Cases

• Wireless telemetry for drones, RC cars and robots
• Remote sensor data collection in agriculture and environmental monitoring
• Home automation control for lighting, door locks and garage doors
• Industrial machine-to-machine communication over moderate distances
• Wireless weather stations transmitting temperature and humidity data

How to Use HC-12 433Mhz 44382A Long Range Wireless RF Transceiver

Connect VCC to a stable 3.3 V–5 V supply, tie GND to common ground, and wire TX/RX pins to your MCU’s RX/TX respectively. Use a serial terminal or AT commands (e.g., AT+B9600) to configure baud rate, channel and power settings. Mount the spring antenna vertically for optimal range, then upload simple send/receive sketches to Arduino or Raspberry Pi to start wireless communication.

Why Buy from Zbotic?

• Genuine Products: All items sourced from authorized distributors
• Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
• Free Shipping: Free delivery on qualifying orders
• COD Available: Cash on Delivery, UPI, cards, net banking
• Technical Support: Expert help for setup and troubleshooting
• Easy Returns: Hassle-free replacement for defective products

Frequently Asked Questions

What is the maximum communication range of the HC-12?

With a stable 5 V supply, low data rate (1.2 kbps) and clear line of sight, the HC-12 can achieve up to 600 m range using its +20 dBm transmit power and external spring antenna.

How do I change the operating frequency or baud rate?

Enter AT command mode (pull SET pin low) and send commands like AT+C007 for channel selection or AT+B4800 to set baud to 4.8 kbps. Save with AT+SLEEP to apply changes on reboot.

Can I interface HC-12 directly with a 5 V Arduino?

Yes. The HC-12’s UART/TTL pins tolerate 5 V logic levels and its supply range supports 3.2 V–5.5 V, allowing direct connection to typical Arduino boards without level shifting.

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