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iotwirelesshardware-development

920 MHz Band LoRa/FSK-Compatible LPWA Wireless Module and IoT ODM

Overview

Development and sales of 920 MHz band LPWA (Low Power Wide Area) wireless modules, together with one-stop IoT system development. The company’s in-house lineup includes ultra-low-power modules supporting both LoRa and FSK modulation, private LoRa / LoRaWAN-compatible gateways, and evaluation and development kits. End-to-end support covers wireless scheme selection, sensor-integrated prototyping and verification, volume production, ODM supply as a finished product, and web UI development for cloud-based visualization. Modules for the domestic market have obtained the technical conformity certification (Giteki). ISO 9001 certified.

System architecture diagram

Technical Features

  • 920 MHz band LPWA wireless: Chirp spread-spectrum modulation enables long-range communication with low-power radio signals. Operates as a specified low-power radio station — no license required (429 MHz band also supported). Line-of-sight range of several tens of kilometers; several kilometers in urban environments. Minimum receive level of −142 dBm allows reception of signals below the noise floor.
  • Single-chip RF + MCU integration (STM32WL): Achieves cost reduction and miniaturization of ultra-low-power modules with virtually no compromise in RF performance. Power consumption is low enough to run on two AAA batteries for more than ten years — the module sleeps by default and activates the radio only when needed.
  • LoRa / FSK switching: LoRa and FSK modulation can be switched via command. Bandwidth (BW) and spreading factor (SF) settings allow the trade-off between data rate and communication range to be optimized.
  • Private LoRa support: Configurable as end unit ↔ gateway ↔ LTE/Ethernet ↔ server/cloud. By omitting the LoRaWAN network server layer, the solution eliminates over-the-air communication costs and allows full customization and optimization. Modules compliant with LoRaWAN (Ver. 1.0.4) are also available.
  • Product lineup: 920 MHz band LoRa/FSK modules (single-chip integrated type and legacy-compatible type), add-on modules for gateways, LoRa wireless units with RS-485 / 4–20 mA interfaces, hybrid routers integrating wired and wireless connectivity, and evaluation/development kits.
  • One-stop IoT support: Wireless consulting, system planning and deployment, wireless scheme selection, prototyping and verification, volume production, ODM supply, and cloud web UI development.

Private LoRa vs. LoRaWAN network topology comparison

Intended Applications and Target Sectors

  • Factory IoT: Equipment operation and environmental monitoring; wireless sensor retrofits for existing installations where running cables is impractical.
  • Construction IoT: On-site environmental and equipment monitoring.
  • Hospital and facility IoT: Condition monitoring via sensor networks.
  • Sensing in environments where other technologies struggle — manholes, underground locations, and remote sites.
  • Sensor networks requiring long-term unattended operation on battery power.

Key Specifications and Configuration

  • Wireless scheme: LoRa modulation / FSK modulation (command-switchable)
  • Frequency: 920 MHz band (429 MHz band available); specified low-power radio, no license required
  • Communication range: Several tens of km line-of-sight / several km in urban areas; minimum receive level −142 dBm
  • Power consumption: More than 10 years on two AAA batteries (depending on operating conditions)
  • Core device: Single-chip wireless microcontroller integrating RF + MCU (STM32WL)
  • Network: Private LoRa / LoRaWAN (Ver. 1.0.4 compliant)
  • Configuration: Wireless module + gateway + server/cloud (web UI)
  • Certifications: Technical conformity certification (Giteki), ISO 9001

Monozukuri Finder can connect you with Japanese manufacturers capable of delivering this technology. Inquiries regarding detailed specifications or international deployment are also welcome.