SX1262-LoRa-DTU-LF - industrial LoRa 433MHz module with RS232/RS485/RS422 interface

Description

The SX1262-LoRa-DTU is a LoRa wireless communication module dedicated to long-distance data transfer. It operates in the 433 MHz frequency band and is equipped with RS232, RS485 and RS422 industrial interfaces. It is based on the SX1262 module. and uses LoRa Modulate and Demodulate technology with anti-interference function and long-distance communication capability up to 5 km.

Compared to traditional communications, LoRa's Chirp Spread Spectrum (CSS) and Frequency Hopping Spread Spectrum (FHSS) technologies significantly improve the performance of long-range and anti-interference communications, widely used in military and industrial communication fields. The module provides multiple communication methods configurable via software. It can operate in streaming or packet, point-to-point or multipoint-to-point modes. The module can realize a multi-level relay network, suitable for very long-range communications or complex environments.

The module can be operated using AT commands, which allow the user to send a query about the current status of the module or set operating parameters. The stability and security of communication is ensured by AES encryption. The module actively monitors ambient noise before sending. If it exceeds a threshold, sending will be delayed. This feature can improve communication performance in harsh environments. In addition, it supports RSSI, the signal strength output of a data packet, which can be used to evaluate signal quality and measure distance.

The device is enclosed in an aluminum housing with a plastic bracket for mounting on an industrial DIN rail. It has been equipped with numerous protections, including a TVS diode that can effectively suppress surges. It has built-in ESD protection as well as a fuse and a circuit that ensures stable current and voltage output.

The module will find application for long-distance data transmission in industry and agriculture. Full documentation and configuration examples are available on the product page.

Features

• Uses LoRa Modulate and Demodulate technologies
• Built-in SX1262 chip, with -148dBm receive sensitivity and 22dBm emission power
• Supports preamble detection, with CRC, automatic packetization, 960 bytes cache function
• Supports LBT sending, RSSI output, AT command configuration
• AES communication to ensure the security of data transmission
• Support multi-level relay network to increase wireless communication distance
• Supports host configuration and firmware upgrade
• Uses high quality components such as TCXO to ensure stable operation in harsh environments
• RS232, RS422 and RS485 interface
• Sub-GHz frequency band from 410 to 510 MHz
• Serial communication: 1200 to 115200 bps
• Protection against overload, over-voltage and reverse polarity
• Aluminum housing
• Power supply: 6 V to 28 V
• Dimensions: 77 x 24 64.2 mm

Kit contains

• SX1262-LoRa-DTU
• CB antenna with magnetic base