GT-38 433MHz Wireless Serial Module SI4438/4463 1200m Range

GT-38 Wireless Microcontroller Key Features:

• Extended Range: Achieve long-distance wireless transmission up to 1200 meters in open ground using FU4 mode with an air baud rate of 1000bps.
• Flexible Frequency: Operates within a frequency range of 433-458.5MHz, offering up to 255 communication channels.
• Powerful Transmission: Boasts a maximum transmission power of 100mW (20dBm) with 8 adjustable power levels.
• Versatile Working Modes: Four distinct working modes cater to a variety of application scenarios.
• Embedded MCU: Comes with an in-built MCU, facilitating communication with external devices via serial port without the need for external programming.
• Efficient Data Transmission: Send up to 256 bytes in a single go.
• Flexible Connectivity: Supports both one-to-many and many-to-many connection transparent transmissions.
• Compact Design: With dimensions of 26.7mm × 12.9mm × 6mm, the module is designed for easy embedding into application systems. Plus, it offers both PCB and spring antenna options to suit your needs.

User-Friendly Interface: The GT-38 module is not just about power; it’s also about ease of use. With various transparent transmission modes, users only need to manage serial port data. The module also supports multiple serial port transparent transmission modes, selectable via AT commands.

A New Generation in Wireless Communication: The GT-38 Wireless Microcontroller Serial Port Module SI4438/4463 is a revolutionary step in wireless data transmission, poised to be a worthy successor to modules like the HC-12.

Comparison of the GT-38 Module and the HC-12 Wireless Serial Port Module:

The GT-38 module operates on the 433MHz frequency band with support for 255 communication channels across 433-458.5MHz. The integrated SI4438/4463 chipset delivers reliable wireless data transmission with adjustable power output up to 100mW across 8 power levels. The embedded microcontroller enables direct serial communication with external devices through UART interface, supporting both 3.3V and 5V logic levels.

This wireless serial port module transmits data packets up to 256 bytes with transparent transmission capability in one-to-many and many-to-many network configurations. Four working modes provide flexibility for different application requirements, configurable through AT commands. The compact 26.7mm × 12.9mm × 6mm footprint allows integration into space-constrained projects, with options for PCB trace or spring antenna mounting.