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LoRa-E5 mini (STM32WLE5JC) Dev Board

SKU: SS113990939 Brand: Seeed Studio

LoRa-E5 mini is a compacted-sized development board suitable for the rapid testing and building of small-size prototyping and helps you design your ideal LoRaWAN wireless IoT device with a long-distance transmission range.

$50.70 AUD, inc GST

$46.09 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Tue, 30th of Apr

Quantity Discounts:

6-12 $44.25 (exc GST)
12+ $42.86 (exc GST)

Restrictions apply to this RF Equipment for use in Australia:

Only to be operated on 433Mhz / 915-930Mhz / 2.4Ghz (check the product description for compatible frequency ranges).
If operating outside of shared frequencies or in such a way that is beyond low interference potential devices are intended to function, then you have obtained the appropriate authorisation to do so.

For use in other locations around the world:

Follow region-specific frequency spectrum rules.

A declaration of use will need to be submitted during checkout.

LoRa-E5 mini is embedded with LoRa-E5 STM32WLE5JC Module, which delivers the world-first combo of LoRa RF and MCU chip into one single tiny chip and is FCC and CE certified. It is powered by ARM Cortex-M4 core and Semtech SX126X LoRa chip and supports LoRaWAN protocol on the worldwide frequency and (G)FSK, BPSK, (G)MSK, and LoRa modulations. (Learn more about LoRa-E5)

Full GPIOs broken out from the Lora-E5 STM32WLE5JC
Global LoRaWAN® and LoRa frequency plan supported
Long-distance transmission range to 10km (in ideal open areaconditions)
Mini and compact size, suitable for rapid testing and building small size prototype
Convenient RESET and BOOT buttons on board

LoRa-E5 mini leads out all GPIOs of LoRa-E5, including UART, ADC, SPI, IIC, and etc. It contains RESET and BOOT buttons and is use-friendly. Supporting LoRaWAN protocol, LoRa-E5 mini features ultra-long-range transmission and ultra-low power consumption: it is able to achieve a transmission range of up to 10 km, and the sleep current of LoRa-E5 modules on board is as low as 2.1 uA(WOR mode). It is designed with industrial standards with a wide working temperature at -40°C ~ 85°C, high sensitivity between -116.5dBm ~ -136 dBm, and power output up to +20.8 dBm at 3.3V.

Function

Since LoRa-E5 is a LoRaWAN chip with an MCU, there are three main ways to utilize the LoRa-E5 mini:

Connect LoRa-E5 mini to PC and control by AT commands

There is a built-in USB to UART function on board, you could connect the LoRa-E5 mini to your PC with a USB type C cable, and use serial communication software to send AT commands and read data from the board.

Connect LoRa-E5 mini to another mainboard via UART and control by AT commands

For example, connect LoRa-E5 mini to Seeeduino XIAO and the Expansion Board via UART, and send AT commands and read data from Seeeduino XIAO through Arduino IDE serial monitor.

User Application Development by using SDK

Develop your own LoRa development board with MCU function by using STM32Cube Programmer, which is the SDK officially provided by STMicroelectronics. To download this SDK resource, please find the resources in learning and document down below.

With all the outstanding features listed above, the LoRa-E5 mini will be a superior choice for IoT device development, testing, prototyping, and applications in long-distance, ultra-low power consumption IoT scenarios like smart agriculture, smart office, and smart industry.

If you are unfamiliar with LoRa and LoRaWAN technology, please check out this blog LoRapedia in detail.

Hardware Overview

Application Note

For more detailed information about how to use LoRa-E5, please visit LoRa-E5 (STM32WLE5JC) Module Wiki.

Factory AT Firmware

LoRa-E5 series has a built-in AT command firmware, which supports LoRaWAN Class A/B/C protocol and a wide frequency plan: EU868/US915/AU915/AS923/KR920/IN865. With this AT command firmware, users can easily and quickly build their prototype or application.

The AT command firmware contains a bootloader for DFU and the AT application. The "PB13/SPI_SCK/BOOT" pin is used to control LoRa-E5 to stay in the bootloader or jump to the AT application. When PB13 is HIGH, the module will jump to AT application after reset, with a default baud rate of 9600. When PB13 is LOW (press the "Boot" button on LoRa-E5 Dev Board or LoRa-E5 mini), the module will stay in the bootloader, and keep transmitting "C" character every 1S at baud rate 115200.

Attention

Factory AT Firmware is programmed with RDP(Read Protection) Level 1, developers need to remove RDP first with STM32Cube Programmer. Note that regression RDP to level 0 will cause a flash memory mass to erase and the Factory AT Firmware can't be restored again.
The "PB13/SPI_SCK/BOOT" pin on the LoRa-E5 module is just a normal GPIO, not the "BOOT0" pin of the MCU. This "PB13/SPI_SCK/BOOT" pin is used in the bootloader of the Factory AT firmware, to decide to jump to APP or stay in bootloader(for DFU). The real "BOOT0" pin doesn't pinout to the module, so developers need to be careful when developing low-power applications.
Clock Configuration

2.1 HSE

32MHz TCXO
TCXO power supply: PB0-VDD_TCXO

2.2 LSE

32.768KHz crystal oscillator

RF Switch

LoRa-E5 module ONLY transmits through RFO_HP:

Receive: PA4=1, PA5=0
Transmit(high output power, SMPS mode): PA4=0, PA5=1

Specifications

Parameters	Specifications
size	50*23mm
voltage - supply	3.7V - 5V
power - output	up to +20.8 dBm at 3.3V
working frequency	868/915MHz
protocol	LoRaWAN
sensitivity	-116.5 dBm ~ -136 dBm
interfaces	USB Type C / 2P-2.54mm Hole / 112P-2.54mm Header2 / SMA-K / IPEX
modulation	LoRa, (G)FSK, (G)MSK, BPSK
working temperature	-40°C ~ 85°C
current	LoRa-E5 module sleep current as low as 2.1uA (WOR mode)

Part List:
LoRa-E5 mini *1
Antenna(EU868/US915) *1
USB TypeC (20cm) *1
Sticker *1
1X12pin male pin headers *2

Resources

Wio-E5 mini Datasheet:

Wio-E5 Datasheet:

Wio-E5 Certifications:

Relevant SDK:

STM32Cube MCU Package for STM32WL series

This product is listed in:

Development Boards>STM32
Wireless>LoRa & LoRaWAN>Nodes
Wireless>LoRa & LoRaWAN

Product Comments

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