WM-SG-SM-42 Series LoRa Modules

Low cost, low power, wide area network (LPWAN) wireless modules that support the LoRaWAN long-range wireless protocol with an AT command set.

Supplier: USI

Technology type: LoRa

LoRa technology offers efficient, flexible and economical solutions to real-world problems for rural and indoor use cases, where cellular and Wi-Fi/ BLE based networks are ineffective.

The WM-SG-SM-42 is enabled with a variety of interfaces; UART, SPI, or I2C for peripheral along with plenty of flexibility for connecting sensors, switches and status LEDs. Powered from a 2.0 to 3.6 VDC supply, the module has been certified with radio regulatory approvals for operating in the 868(CE) and 915(FCC) MHz industrial, scientific and medical (ISM) spectrum across most regions of the world.

Typical applications ideal for these modules are pallet tracking for logistics, intelligent buildings, precision farming and manufacturing automation.

Range features

A high level overview of what this range offers

  • ARM Cortex-M0+ up to 32 MHz
  • SEMTECH SX1272 radio(860~1020MHz)
  • 8KB of SRAM and 64KB Flash
  • UART, I2C, LPTimer Interface support
  • 3ch ADC 12-bit
  • AT-Command set support for LoRaWAN
  • FCC/CE and LoRaWAN certified
  • Long range
  • Low power
  • Secure encryption
  • Maintains mobile communication
  • High capacity
  • Low cost
  • Frequency ranges 868 MHz or 915 MHz
  • Enables GPS free tracking applications

What's in this range?

All the variants in the range and a comparison of what they offer



Wi-Fi 802.11

Band (MHz)




SX1272 + STM32L052





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