LoRa-E5 STM32WLE5JC Module embedded SX126X & MCU


Product Introduction

LoRa-E5 is a low-cost, ultra-low power, extremely compact, and high-performance LoRaWAN Module designed by Seeed Technology Co., Ltd. It contains ST system-level package chip STM32WLE5JE, which is the world first SoC integrated with the combo of LoRa RF and MCU chip. This module is also embedded with ARM Cortex M4 ultra-low-power MCU and LoRa SX126X, and therefore supports (G)FSK mode and LoRa. 62.5kHz, 125kHz, 250kHz, and 500kHz bandwidth can be used in LoRa® mode, making it suitable for the design of various IoT nodes, supporting EU868 and US915.

SIZE COMPARE (extremely compacted size, smaller than 1 euro coin)


  • Ultra-low Power Consumption: as low as 2.1uA sleep current (WOR mode)
  • Extremely Compacted Size: 12mm * 12mm * 2.5mm 28 pins SMT
  • High Performance: TXOP=22dBm@868/915MHz; -136.5dBm sensitivity for SF12 with 125KHz BW
  • Long Distance Use: 158dB link budget
  • Wireless Connectivity: Embedded LoRaWAN® protocol, AT command, support global LoRaWAN® frequency plan
  • Worldwide Compatibility: wide frequency range; EU868/US915/AU915/AS923/KR920/IN865
  • Great Flexibility: For customers who want to develop software on the MCU of the module, other GPIOs of the MCU can be easily manipulated, including UART, I2C, ADC, etc. These rich GPIO interfaces are useful for users who need to expand peripherals.
  • FCC and CE Certified


  • Works for LoRaWAN sensor nodes and any wireless communication application.



ITEMs Parameter Specifications Unit
Structure Size 12(W)*12(L)*2.5(H) mm
Package 28 pins, SMT
Electrical Characteristics power supply 3.3V type V
sleep current 2.1uA(WDT on) uA
Operation current (Transmitter+MCU) 50mA @10dBm in 434MHz type mA
111mA @22dBm in 470MHz type
111mA @22dBm in 868MHz type
Operation current (Receiver+MCU) 6.7mA @BW125kHz, 868MHz type mA
6.7mA @BW125kHz, 434MHz type
6.7mA @BW125kHz, 470MHz type
Output power 10dBm max @434MHz dBm
22dBm max @470MHz
22dBm max @868MHz
Sensitivity @SF12, BW125kHz dBm
Fr(MHz) min type max
434 - -134.5 -136
470 - -136.5 -137.5
868 - -135 -137
Harmonics < -36dBm below 1GHz dBm
< -40dBm above 1GHz dBm
Interface RFIO RF port
UART 3 group of UART, include 2 pins
I2C 1 group of I2C, include 2 pins
ADC 1 ADC Input, include 1 pins, 12-bit 1Msps
NRST Manual reset pin input
SPI 1 group of SPI, include 4 pins