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HC-12 SI4463 Wireless Transparent Serial Port Module – Long Distance 1000M 433MHz Transceiver (Bluetooth Alternative)

Looking for a reliable, long-range wireless communication solution for your Arduino, STM32, ESP32, or Raspberry Pi projects? The HC-12 SI4463 Wireless Transceiver Module is one of the best choices in the market for industrial-grade, transparent serial communication up to 1000 meters in open areas!

Product Overview

The HC-12 is a high-performance 433MHz wireless serial port module based on the powerful SI4463 RF chip. It provides true transparent transmission — meaning you can send data exactly as you would through a wired serial connection (TX/RX), without worrying about complex wireless protocols.

This module is widely used as a long-range Bluetooth alternative when you need much greater distance, better wall penetration, and more stable communication in outdoor or industrial environments.

Key Featues & Benefits:

• Ultra-Long Range: Up to 1000 meters in open space (real-world tested 600-800m with the included spring antenna depending on baud rate and environment).
• 433MHz Frequency: Excellent penetration through walls, trees, and obstacles compared to 2.4GHz modules like Bluetooth or WiFi.
• Transparent Serial Communication: Plug-and-play serial data transfer. Supports baud rates from 1200 to 115200 bps.
• Low Power Consumption: Ideal for battery-powered projects. Multiple power-saving modes available.
• Strong Anti-Interference: SI4463 chipset delivers excellent signal stability and noise resistance.
• Easy to Use: Simple AT commands for configuration (baud rate, power, channel, etc.).
• Built-in STM8S003F3U6 Microcontroller: Enhances module performance and stability.
• Multiple Working Modes: FU1, FU2, FU3, and FU4 modes for different range vs power requirements.

Technical Specifications:

• Model: HC-12
• Chipset: SI4463 + STM8S003F3U6
• Frequency: 433.4 – 473.0 MHz (default 433.4MHz)
• Output Power: Up to +20dBm (100mW) – adjustable
• Sensitivity: -117dBm
• Interface: UART (TX, RX, GND, VCC, SET)
• Voltage: 3.2V – 5.5V DC (recommended 5V)
• Antenna: High-quality spring antenna included (removable for SMA antenna upgrade)
• Dimensions: Compact size, easy to integrate into any project
• Working Temperature: -40°C to +85°C

What’s in the Package:

• 1x HC-12 Wireless Transceiver Module (Top & Bottom PCB shown)
• 1x High-Quality Spring Antenna
• Pins & headers ready for soldering or breadboard use

Perfect For:

• Wireless sensor networks
• Remote control systems
• Telemetry & data logging
• Smart agriculture & irrigation
• Security & alarm systems
• Drone & robot communication
• Industrial automation
• Long-distance wireless meter reading
• Any project where Bluetooth range is simply not enough

Why Choose HC-12 Over Bluetooth?

Bluetooth typically offers only 10-30 meters range. The HC-12 gives you 30-100 times more distance while maintaining simple serial communication. No pairing, no complex libraries — just send and receive data like a super long wire!

Whether you are a hobbyist, student, engineer, or professional maker, this module delivers professional-grade performance at an incredibly affordable price.

Ready to take your wireless projects to the next level?

✅ Reliable Long Range

✅ Easy Integration ✅ Stable Performance ✅ Great Value

Order your HC-12 SI4463 modules today from sellerhat.com and enjoy fast shipping, quality guarantee, and excellent customer support.

Bulk orders available – perfect for schools, workshops, and product development.

Note: Actual transmission distance depends on baud rate, antenna height, obstacles, and power supply. For maximum range, use 5V supply, lower baud rate (9600), and mount antenna vertically in open space.