WSL02-A0 LoRaWAN radio module

Ultra small module

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WSL02-A0 LoRaWAN is a low cost, low power and ultra-small size module, embedded with Semtech’s LoRa propriety chip SX1276 and ST’s ultra-low power STM32 serial MCU. The module targeting sensor network applications and others IOT devices powered by battery which need low power consumption to extend the battery lifetime.

# AS 923
# AU 915-928
# CN 470-510
# EU 863-870
# Modules
# US 902-928


  • Size: 14(W) X 20(L) X 2.6(H) mm
  • Package: 18 pins, SMT
  • Power supply: 3.3V type
  • Sleep current: 1.45uA (WDT off)
  • Operation current (Transmitter+MCU) : 120mA @20dBm
  • Operation current (Receiver+MCU) : 16mA @BW125kHz
  • Output power max.: 20dBm
  • Sensitivity: -139dBm @SF12, BW125kHz
  • Harmonics: <-40dBm above 1GHz
  • RFIO: RF port

  • USART: 2 group of USART, include 2pins

  • USB: 1 group of USB, include 2 pins
  • I2C: 1 group of I2C, include 2 pins

  • ADC: 2 ADC Input, include 2 pins, reuse with LPUART port

  • NRST: Manual reset pin input

  • Certification: FCC, CE

Low power consumption
1.45uA sleep current in WOR mode
Ultra-small size
14mm X 20mm,18 pins SMT package
High performance
WSL02-A0:TXOP=20dBm@868MHz/915MHz 160dB link budget, suitable for long range
User-friendly interface
Support standard
LoRaWAN protocol
Regional band
EU868, US915 and US915Hybrid, CN779, AU915, AS923, KR920, IN865
WSL02-A0 LoRaWAN radio module's Distributors

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