HC-12 433MHz Long-Range Wireless Serial Transceiver Module
Original price was: ₵60.00.₵55.00Current price is: ₵55.00.
Long-range 433MHz wireless serial transceiver for Arduino, ESP32, STM32 and other microcontroller projects. The HC-12 provides easy UART-based wireless communication with configurable channels, baud rate and transmission power, making it ideal for telemetry, robotics, remote sensors and automation systems.
Frequency: 433.4 – 473.0MHz
Supply: 3.2 – 5.5V DC
Interface: TTL UART Serial
Baud Rate: 1200 – 115200bps
TX Power: Up to 100mW / +20dBm
Channels: Up to 100
Range: Up to approximately 1km line-of-sight
Best For: Telemetry, wireless sensors, robotics, automation and long-range microcontroller communication
1 in stock
The HC-12 433MHz Long-Range Wireless Serial Transceiver Module provides simple and reliable wireless serial communication between Arduino, ESP32, STM32 and other microcontroller systems.
Unlike SPI-based RF modules, the HC-12 uses a straightforward TTL UART serial interface, making it especially convenient for beginners. Data transmitted through the TX pin of one HC-12 can be received through the RX pin of another module, allowing two devices to communicate wirelessly much like a conventional serial cable.
The module operates across approximately 433.4–473.0MHz, supports up to 100 selectable communication channels, and provides adjustable RF transmission power up to 100mW (20dBm). Communication parameters including baud rate, channel, operating mode and transmission power can be configured using AT commands.
Under favourable open-area line-of-sight conditions, the HC-12 can achieve communication distances of up to approximately 1km. Actual range depends on antenna type, transmission settings, interference, obstacles and installation conditions.
Its transparent serial operation makes the HC-12 suitable for wireless sensor networks, telemetry, robotics, remote monitoring, automation systems and projects requiring longer communication distances than conventional short-range wireless modules.
Technical Specifications
| Specification | Details |
|---|---|
| Module | HC-12 |
| Type | Wireless Serial Transceiver |
| Frequency Range | 433.4–473.0MHz |
| Communication Channels | Up to 100 |
| Channel Spacing | 400kHz |
| Supply Voltage | 3.2–5.5V DC |
| Communication Interface | TTL UART Serial |
| UART Baud Rate | 1200–115200bps |
| Maximum RF Output Power | 100mW / +20dBm |
| RF Power Levels | 8 adjustable levels |
| Receiver Sensitivity | Up to approximately -117dBm |
| Maximum TX Current | Approximately 100mA |
| Configuration | AT Commands |
| Communication Mode | Half-duplex |
| Maximum Advertised Range | Up to approximately 1000m line-of-sight |
| Pins | VCC, GND, RXD, TXD, SET |
| Compatible Platforms | Arduino, ESP32, ESP8266, STM32, Raspberry Pi and other UART devices |
These specifications correspond to the standard HC-12 operating characteristics; individual board revisions can differ slightly.
Applications
- Long-range Arduino communication
- Wireless sensor networks
- Remote monitoring systems
- Robotics and remote control
- Agricultural monitoring
- Wireless telemetry
- Home and industrial automation
- Environmental monitoring
- Wireless data acquisition
- IoT projects
- STEM and educational projects
Package Includes
1 × HC-12 433MHz Wireless Serial Transceiver Module
Related products
433MHz RF Transmitter & Receiver Kit | Wireless Module for Arduino
Cut the cord. Go wireless. This kit includes one Transmitter and one Receiver. It is the simplest and most affordable way to send data wirelessly between two Arduinos up to 100 meters (with antenna).
-
Frequency: 433MHz
-
Includes: 1x Transmitter (Square), 1x Receiver (Rectangle)
-
Modulation: ASK (Amplitude Shift Keying)
-
Best For: Remote control cars, weather stations, and wireless switches.
Reviews
There are no reviews yet.