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JX-660T LoRa Radio Module (380-450MHz)

$39.90
SKU: TEL0116
A low-cost LoRa module for ISM bands, offering robust wireless links, star networking, and transparent data communication without LoRaWAN protocol.
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IntroductionSpecificationShipping List

Introduction

The JX-660T LoRa Radio Module is a high-performance, long-range, low-data-rate data radio modem based on the Semtech SX1262. This low-cost sub-1 GHz transceiver module is designed for operations in the unlicensed ISM (Industrial Scientific Medical) bands, offering a versatile frequency range of 380-450MHz. Utilizing LoRa™ spread spectrum modulation, the module provides robust multi-channel operation, high bandwidth efficiency, and excellent anti-blocking performance, facilitating the realization of reliable wireless links.


The module supports two primary modes of operation:

Transparent (Passthrough) Mode: Acts as a transparent data radio modem, communicating with the host device using a preset data format without requiring encoding/decoding by the host.

Star Network Mode: One module can be configured as a central node, while others operate as node modules. Communication between the central module and node modules is bidirectional. Node modules communicate exclusively with the central node and not directly with each other.


Note: This module implements a proprietary protocol for its star network functionality and does not include the LoRaWAN™ protocol stack. Therefore, it is not directly compatible with LoRaWAN™ networks.

Use of a USB to TTL Converter is recommended for easy parameter configuration, and the Gravity IO Expansion Shield for seamless integration with microcontrollers.


Version Update:

The LoRa Radio Module has been upgraded for enhanced performance and efficiency. The previous version (V1,SX127x-based) is now succeeded by the current JX-660T (V2, SX1262-based).

Core Functionality: The module continues to utilize LoRa™ spread spectrum modulation for long-range, low-data-rate wireless communication. It maintains a TTL serial (UART) interface for configuration and data transfer and supports star network topology (using a proprietary protocol). Similar to V1, the JX-660T (V2) is not LoRaWAN™ compatible.

For Returning Customers: Please carefully review the following key changes, especially the revised operating frequency range and receiver sensitivity, if replacing a V1 module in existing setups or designing for specific link budgets. These changes may impact system compatibility and performance characteristics.

Key Upgrades & Parameter Changes (JX-660T V2 vs. V1):

  • Core Chip: Upgraded to Semtech SX1262. (Previously V1: SX127x series)
  • Transmit Power: Increased to 22dBm. (Previously V1: 20dBm)
  • Frequency Range: Now 380-450MHz. (Previously V1: 420-510MHz for YL-800T, or other specific 433/490MHz bands)
  • Receiver Sensitivity: -138dBm. (Note: Some V1 models like YL-800T featured -148dBm)
  • Sleep Current: Reduced to ＜2.0µA. (Previously V1: ≤3.9µA)
  • RX Current: Reduced to ＜12mA. (Previously V1: ≤15.2mA)
  • Wake-up Method: Instant wakeup (PA3 pin active low). (Previously V1: EN pin pull-low, typically 50ms required in Node mode)
  • Max UART Baud Rate: Extended to 115200bps. (Previously V1: Up to 57600bps for YL-800T)
  • Max Packet Size: Increased to 1KB (Normal mode). (Previously V1: 200 bytes for YL-800T)
  • Operating Temperature: Range extended to -40~+85℃ (Industrial). (Previously V1: -40~+80℃ for YL-800T)
  • New V2 Special Features: Includes CAD Collision Avoidance, Power-saving passthrough, and HEX addressing.

    • Specification

  • Operating Voltage: 2.1V ~ 5.5V
  • Working Frequency Band: 380-450MHz
  • Modulation: LoRa™ Spread Spectrum
  • Transmit Power: 22dBm (150mW, 7-level adjustable)
  • Receiver Sensitivity: -138dBm
  • TX Current: ＜125mA (@22dBm)
  • RX Current: ＜12mA
  • Sleep Current: ＜2.0µA
  • Spreading Factor: 5-32 / 6-64 / 7-128 / 8-256 / 9-512 / 10-1024 / 11-2048 / 12-4096
  • Signal Bandwidth: 125KHz / 250KHz / 500KHz
  • Wakeup Method: Instant wakeup (PA3 pin active low)
  • Networking Mode: Central / Node / Passthrough; Star topology
  • Special Features: CAD Collision Avoidance, Power-saving passthrough, HEX addressing
  • Sleep Time Range: 0.25S ~ 25S
  • Wake Time Range: 2ms ~ 64ms
  • Communication Interface: TTL Serial Communication (UART)
  • UART Baud Rate: 1200bps ~ 115200bps (Default: 9600bps)
  • UART Parity: 8E1 / 8O1 / 8N1 (Default: 8N1)
  • Low-Power UART Rate: 9600bps
  • Operating Temperature: -40℃ ~ +85℃ (Industrial)
  • Max Packet Size: 1KB (Normal mode)
  • Antenna Interface: RF pin (50Ω impedance)

    • Shipping List

  • JX-660T LoRa Radio Module x2
  • Antenna (2m SMA-Male connector) x2
    • Internet of Things - IoTIoT Projects
    Out Of Stock
    JX-660T LoRa Radio Module (380-450MHz)
    $6.90