The HC-12 wireless RF UART communication module is a next-generation multi-channel embedded wireless data transmission solution. Operating at a frequency range of 433.4 to 473.0 MHz, it offers the flexibility to set a communication channel with a step of 400 kHz, providing a total of 100 channels. The module boasts a maximum transmission power of 100 mW (20 dBm) and a receiver sensitivity of -116 dBm at a baud rate of 5000 bps, enabling a communication range of approximately 500 meters.
The module utilizes a stamped hole encapsulation method for easy soldering and has dimensions of 27.4mm x 13.2mm x 4mm (including the antenna seat, but excluding the spring antenna), making it convenient for integration into application systems. It features a PCB antenna seat (ANT1) for users to connect an external antenna using coaxial cable in the 433 MHz band.
Additionally, the module includes an antenna soldering hole (ANT2) for users to attach a spring antenna, allowing for flexibility in antenna selection based on requirements. The module is equipped with an onboard MCU, so users do not need to perform any additional programming; they can simply send and receive UART data. Various UART transmission modes are available, which can be selected using AT commands. The four UART modes—FU1, FU2, FU3, and FU4—offer average operating currents of 3.6 mA, 80 µA, 16 mA, and 16 mA, respectively, with a maximum operating current of 100 mA during full-power transmission.
The HC-12 module is based on the SI4463 EZRadioPro family chip from SiLabs, providing a wireless data transmission and reception range of up to 1 km in open-air conditions. It features an easy-to-use low-power radio chip with an onboard STM8S003F3P6 MCU, which communicates with the SI4463, allowing users to interact with the HC-12 module through a simple TTL 2-wire serial interface (RX, TX, GND).
For a more in-depth understanding of how this module works, please refer to the tutorial provided.
Features:-
- IEEE 802.15.4g compliant
- Frequency range = 1191050 MHz
- Receive sensitivity = 126 dBm
- Serial TTL (RX, TX, GND) interface
- Modulation (G)FSK, 4(G)FSK, (G)MSK, OOK
- Max output power +20 dBm
- Low active power consumption 10/13 mA RX, 18 mA TX at +10 dBm
- Ultra low current powerdown modes 30 nA shutdown, 50 nA standby
- Data rate = 100 bps to 1 Mbps
- Fast wake and hop times
- Highly configurable packet handler
- TX and RX 64 byte FIFOs
- Auto frequency control (AFC)
- Automatic gain control (AGC)
- Low BOM
- Low battery detector
- FCC Part 90 Mask D, FCC part 15.247, 15,231, 15,249, ARIB T-108, T-96, T-67, RCR STD-30, China regulatory
- ETSI Class-I Operation with SAW
Package Includes:-
1 x HC-12 433Mhz SI4463 Wireless Serial Module
Specifications :-
| Model |
HC-12
|
| Communication Interface |
UART
|
| Operating voltage |
3.2 ~ 5.5V
|
| Transmission power |
20dBm (maximum)
|
| Reference distance |
1000 meter
|
| Working frequency band |
433.4 ~ 473.0MHz
|
| Antenna interface |
Spring Antenna/Antenna Socket
|
| Working Humidity |
10% ~ 90%
|
| Working temperature |
-25 ~ +75
|
| Length (mm) |
27.5
|
| Width (mm) |
13.5
|
| Height (mm) |
4
|
| Weight (gm) |
2
|
* Product Images are shown for illustrative purposes only and may differ from actual product.
