SKU: IOWC-1723
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Reyax RYLR684 426/433/490MHz LoRa/(G)FSK Transceiver Module

₹449.00 (Inclusive of all taxes)
Out of Stock

The Reyax RYLR684 is a versatile long-range transceiver module based on the Semtech LLCC68 chip, supporting both LoRa and (G)FSK modulation across the 416-520MHz frequency band for robust sub-1GHz IoT deployments.

Features

  • Based on Semtech LLCC68 chip for reliable LoRa and (G)FSK wireless communication.
  • Wide frequency range from 416MHz to 520MHz, supporting 433MHz, 426MHz, and 490MHz ISM bands.
  • High RF sensitivity of -129dBm for superior long-range reception in noisy environments.
  • Programmable TX power from -20dBm to +22dBm for optimal range and power consumption balance.
  • Low sleep current of 600µA and robust operating temperature from -40°C to 85°C for battery-powered, outdoor applications.

Out of stock

Description

The Reyax RYLR684 transceiver module is engineered for demanding long-range wireless applications, leveraging the proven Semtech LLCC68 RF IC. It provides developers with a dual-modulation solution, offering the network flexibility of LoRa alongside the higher data rates of (G)FSK modulation, all within the sub-1GHz spectrum.

Its architecture is designed for resilience, featuring a metal cover for EMI shielding and options for SMT or DIP mounting and antenna integration. With programmable output power up to +22dBm and a high receiver sensitivity of -129dBm, the module excels in creating robust point-to-point or star network links for telemetry and control systems where range and reliability are paramount.

Key Features

  • Dual modulation support for LoRa (62.5kbps) and (G)FSK (300kbps) protocols.
  • Wide programmable transmit power range from -20dBm to +22dBm for link budget optimization.
  • Metal shielding cover provides enhanced protection against electromagnetic interference (EMI).
  • Available in both SMT (surface-mount) and DIP (through-hole) package options for flexible PCB integration.
  • Integrated antenna design option simplifies RF front-end implementation.
  • Ultra-low sleep current consumption of 600µA maximizes battery life in duty-cycled applications.
  • Industrial-grade operating temperature range from -40°C to +85°C ensures reliability in harsh environments.

Applications

  • Industrial wireless sensor networks for telemetry and monitoring (IIoT).
  • Long-range remote control and automation systems in agriculture.
  • Asset tracking and logistics management across large facilities.
  • Smart meter reading and utility data collection networks.
  • Environmental monitoring systems deployed in remote locations.

Technical Specifications

Model / Core ICReyax RYLR684 (Semtech LLCC68)
Wireless ProtocolsLoRa, (G)FSK
Frequency Range416 MHz - 520 MHz
RF Transmit Power-20 dBm to +22 dBm (Programmable)
RF Sensitivity-129 dBm
LoRa Bit Rate62.5 kbps
FSK Bit Rate300 kbps
Supply VoltageNot Specified
Sleep Current600 µA
InterfacesSPI (via LLCC68)
Antenna ConnectorIntegrated Antenna Option
Operating Temperature-40°C to +85°C
DimensionsApprox. 5cm x 3cm (from shipping)

Frequently Asked Questions

What is the primary interface for controlling the RYLR684 module?

The RYLR684 module is controlled via an SPI interface to the embedded Semtech LLCC68 chip. You must connect the module's SPI pins (MOSI, MISO, SCK, NSS) to your host microcontroller's SPI peripheral and use the official LLCC68 driver library or AT command set (if firmware supports it) to configure modulation, frequency, power, and packet settings before transmitting or receiving data.

How do I select between LoRa and (G)FSK modulation modes?

Modulation mode is selected through software configuration via the SPI interface. You must write specific configuration registers within the Semtech LLCC68 IC to switch between LoRa spread-spectrum mode (for maximum range and interference immunity at lower data rates) and (G)FSK mode (for higher throughput up to 300kbps). Refer to the Semtech LLCC68 datasheet for the exact register map and configuration sequence.

What antenna should I use with the RYLR684 and how is it connected?

The module supports an integrated antenna option or an external antenna. For an external antenna, you must select a 50-ohm antenna tuned to your operating frequency (e.g., 433MHz). Connect it directly to the designated RF pad or via a matching network as specified in the Reyax reference design. Ensure proper impedance matching to maximize RF performance and comply with regional regulatory standards for radiated power.

What is the typical power supply requirement for the RYLR684 module?

While the exact voltage range is not specified in the provided data, modules based on the Semtech LLCC68 typically operate from 1.8V to 3.6V. It is critical to provide a clean, stable power supply with sufficient current capability for transmission peaks (especially at +22dBm output). Always add bulk and decoupling capacitors close to the module's VCC pin as per the hardware design guidelines to ensure stable operation.

Package Includes

  • 1 x Reyax RYLR684 426/433/490MHz LoRa/(G)FSK Transceiver Module

Additional Information

Weight 0.01 kg
Dimensions 3 × 5 × 3 cm