HC-12 433 SI4463 Wireless Serial Module

Description

The HC-12 433MHz Wireless RF UART Module is a high-performance, long-range communication module designed for wireless serial data transmission. Operating between 433.4–473.0 MHz with 100 selectable channels, it delivers stable and interference-free communication for a wide range of IoT and embedded applications.

Powered by the SiLabs SI4463 EZRadioPro chipset, the HC-12 offers exceptional sensitivity at –116 dBm, up to 100mW (20dBm) transmit power, and a communication range of up to 500m–1 km in open environments.

Built with a compact 27.4 × 13.2 × 4 mm design, it supports both PCB antenna (ANT1) and spring antenna (ANT2) options for maximum flexibility. With the onboard STM8S003F3 MCU, users can send and receive data directly via simple UART (TX/RX/GND)—no programming required.

Key Features

• IEEE 802.15.4g compliant long-range RF communication

• Wide frequency range: 119–1050 MHz

• Ultra-high receive sensitivity: up to –126 dBm

• Simple Serial TTL interface: RX, TX, GND

• Supports (G)FSK, 4(G)FSK, (G)MSK, OOK modulation formats

• High output power: up to +20 dBm

• Low active power consumption: 10/13 mA (RX), 18 mA TX @ +10 dBm

• Ultra-low standby currents: 30 nA shutdown, 50 nA standby

• Flexible data rate: 100 bps to 1 Mbps

• Fast wake-up and frequency hopping capability

• Built-in configurable packet handler

• 64-byte TX/RX FIFOs for smooth data transmission

• Automatic features: AFC, AGC, low battery detection

• Low BOM design for cost-effective integration

• Certified for FCC Part 90 Mask D, 15.247, 15.231, 15.249, ARIB T-108/T-96/T-67, RCR STD-30, China regulatory

• ETSI Class-I operation with SAW support

Package Includes:

1 x HC-12 433 SI4463 Wireless Serial Module