Seeed Studio Wio-LR1121 IoT Multi-Band LoRa Module with Sub-GHz, 2.4GHz, S-Band, and L-Band Support

Wio-LR1121 Wireless Module

Seeed Studio has introduced the Wio-LR1121, a compact multi-band LoRa module built for Edge and IoT developers to implement reliable, long-range wireless communication systems. Based on Semtech’s third-generation ultra-low power LR1121 LoRa transceiver, the module supports multiple frequency bands, including Sub-GHz (150–960 MHz), S-band (1.9–2.1 GHz), 2.4 GHz ISM, and L-Band (1.55 GHz), enabling global LPWAN connectivity. Its wide frequency coverage makes it suitable for diverse applications such as industrial IoT, smart agriculture, asset tracking, smart metering, and emerging satellite IoT solutions.

The Wio-LR1121 is designed specifically for IoT LoRaWAN applications with a compact form factor and ultra-low power design. It integrates a TCXO (temperature-compensated crystal oscillator) and an RF switch, making it ideal for deployment across global markets. Potential use cases include smart homes, agricultural sensors, building automation, smart cities, retail store sensors, environmental monitoring, and asset management, offering developers flexibility and scalability in a wide range of IoT projects.

Wio-LR1121 with and without IPEX4 (Wio-LR1121 and Wio-LR1121-N)

Wio-LR1121 Wireless Module specifications:

• RF Transceiver: Semtech LR1121 
  • Frequency bands: Sub-GHz: 20.33dBm @ 863-928MHz; 2.4GHz: 11.23dBm @ 2.4-2.5GHz;  
  • Output Power: 
    • Sub-GHz: [email protected]/3.3V 
    • 2.4GHz: 11.23dBm @ 2.4-2.5GHz 
  • Receiver Sensitivity: 
    • RxBoost ON： 
      • -126dBm @ Sub-GHz, BW=125KHz, SF = 7 
      • -140dBm @ Sub-GHz, BW=125KHz, SF = 12 
      • -115.5dBm @ 2.4GHz, BW=406KHz, SF = 7 
    • RxBoost OFF： 
      • -124dBm @ Sub-GHz, BW=125KHz, SF = 7 
      • -138dBm @ Sub-GHz, BW=125KHz, SF = 12 
• Antenna: Via two IPEX4 (1.5mm) connectors 
• Host Interface: SPI interface for MCU communication 
• Expansion: 2x GPIO, one with interrupt support 
• Power Supply: 
  • 3.3V typical 
  • LR1121 Power Distribution Mode: DC-DC Mode 
  • TCXO Supply Mode: By LR1121 VTCXO Pin 
  • TCXO Supply Voltage: 1.6 to 3.3 V 
• Power Consumption: 
  • Sleep Current: 1.35 μA 
  • Maximum Operation Current: 
    • Tx:
      • 124.5mA @ LoRa 915 MHz; 22dBm (Max Tx power @ 20.4 dBm) 
      • 31mA @ LoRa 868 MHz; 14dBm 
      • 30.7mA @ LoRa 2.4 GHz; 13dBm 
    • Rx:
      • 7.8mA @ LoRa SF12 125kHz sub-GHz 
      • 6.7mA @ LoRa SF12 125kHz 2.4GHz/S-band 
• Dimensions: 17 x 12 x 2.6 mm (SMT package with 24 pins) 
• Temperature Range: -40°C to +85°C 
• Certificate: FCC, CE

Wio-LR1121 Schematic Diagram

Seeed Studio does not provide information about software, but mentions that the Wio-LR1121 is designed to comply with the physical layer requirements of the LoRaWAN specification released by the LoRa Alliance® using a simple MCU with an SPI interface.

The Wio-LR1121 module is sold for $6.99 with IPEX connectors on Seeed Studio’s online store. 

Images used courtesy of Seeed Studio