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GT-38 UART/Serial Single Chip Wireless Transceiver Module
$5.9500
In stock
SKU
COM-09-079
Volume discounts:
- +25 4 % $5.7300
- +50 6 % $5.6200
- +100 7 % $5.5100
- +300 9 % $5.4000
- +500 11 % $5.2800
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H3V4F 433MHz Wireless Receiver Module Previous 
The GT-38 UART Serial Wireless Transceiver Module is a wireless communication module for serial data transmission. It operates in the 433-458 MHz frequency band and supports UART communication with AT commands. The module includes a built-in MCU and is designed for serial connection with external devices. It supports transparent transmission modes and can be used for wireless links between computers and other devices. The GT-38 also allows multiple channels and high-speed serial communication settings.
Features of GT-38 UART Serial Wireless Transceiver Module
- UART communication interface
- 433-458 MHz operating band
- Built-in MCU
- AT command support
- Multiple serial transmission modes
- Multiple channel support
- 256-byte single transmission
Specifications of GT-38 UART Serial Wireless Transceiver Module
- Model: GT-38
- Chip: si4438
- Operating frequency: 433-458 MHz
- Working frequency band: 433-458.5 MHz
- Operating voltage: 3.2-5.5 V
- Working current: 40 mA
- Transmission power: 20 dBm (100 mW)
- Humidity: 10-90%
- Interface: UART
- Size: 26.7x12.9x0.6 mm
- Built-in MCU
- Operating temperature: -25 to 75 °C
- Maximum simultaneous transmission: 256 bytes
- Baudrate: 9600 bps to 115200 bps
- Transmission distance: up to 100 m (open area)
- Reference distance: 1200 meters
- Communication interface: UART 3.3V to 5V TTL level
- Antenna interface: spring antenna / antenna socket
- Sleep current: no sleep mode
- Channel step: 100 kHz
- Total channels: 255
- Receiving sensitivity: -116 dBm at 5000 bps space baud rate
How to Use GT-38 UART Serial Wireless Transceiver Module
- Connect the module through the UART serial interface.
- Select the required AT command settings for the communication mode.
- Configure the baudrate and channel settings as needed.
- Send serial data through the module for wireless transmission.
More Info
- Designed for serial wireless communication.
- Supports built-in MCU operation.
- Suitable for open-area transmission.
| Interface Type | UART |
|---|---|
| Operating Voltage (V) | 3.2-5.5 V |
| Operating Current (mA) | 40 mA |
| Operating Temp (°C) | -25 to 75 °C |
| Dimensions (mm) | 26.7 x 12.9 x 0.6 mm |
| Mounting Type | SMD (Surface Mount) |
| Wireless Protocol | RF (Radio Frequency) |
| Frequency Band | 433-458 MHz |
| Data transmission rate | 9600 bps to 115200 bps |
| RF Modulation | GFSK |
| TX Power (dBm) | 20dBm |
| Range (m) | 1200m |
| SIM Slots | 0 |
| Chipset | si4438 |
| Application | Industrial remote control, Automatic data acquisition, Building security systems, Container information management, POS system, Wireless computer network, Wireless robot control, Wireless sensor |
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