SKU: IOWC-1757
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LoRaE5 mini STM32WLE5JC LoRaWAN Development Board

₹2,449.00 (Inclusive of all taxes)
Out of Stock

The LoRaE5 mini is a compact development board built around the STM32WLE5JC combo MCU+LoRa chip, supporting LoRaWAN® protocol and long-range wireless communication for rapid IoT prototyping and deployment.

Features

  • Integrates STM32WLE5JC SoC combining ARM Cortex-M4 MCU and Semtech SX126X LoRa transceiver in a single chip.
  • Supports global LoRaWAN® frequency plans (868/915MHz) with +20.8 dBm output power and sensitivity down to -136 dBm.
  • Ultra-low power operation with sleep current as low as 2.1 µA in WOR (Wake-on-Radio) mode for battery-powered nodes.
  • Compact form factor with full GPIO breakout, USB Type-C, and SMA/IPEX antenna connectors for rapid prototyping.
  • Supports multiple modulations including LoRa®, (G)FSK, (G)MSK, and BPSK for flexible wireless application design.

Out of stock

Description

The LoRaE5 mini development board is engineered for rapid prototyping of long-range, low-power IoT devices. It leverages the STM32WLE5JC, a certified module that uniquely integrates an ARM Cortex-M4 microcontroller core with a Semtech SX126X series LoRa radio transceiver. This system-on-chip architecture simplifies design while delivering robust LoRaWAN® connectivity compliant with global sub-GHz ISM bands.

Engineered for extreme power efficiency, the board supports deep sleep modes, including Wake-on-Radio (WOR), drawing a mere 2.1 µA to enable multi-year battery life in field deployments. Its RF front-end is optimized for link budget, offering a high +20.8 dBm transmit power and exceptional receiver sensitivity down to -136 dBm, facilitating reliable communication over distances up to 10 km in ideal line-of-sight conditions. The compact layout includes convenient reset and boot buttons, a USB Type-C interface for programming and power, and dual antenna options via SMA and IPEX connectors for flexible deployment.

Key Features

  • World-first integrated LoRa RF & MCU chip (STM32WLE5JC) with FCC/CE certification.
  • Global LoRaWAN® and LoRa frequency plan support for worldwide deployment.
  • Long-distance transmission capability, ideal for remote sensor networks and telemetry.
  • Miniature footprint perfect for space-constrained prototypes and final products.
  • Full GPIOs broken out to standard 2.54mm headers for easy peripheral integration.
  • On-board RESET and BOOT buttons for straightforward firmware flashing and debugging.
  • Ultra-low sleep current enables battery-powered applications with years of operation.
  • Multi-modulation support (LoRa, GFSK, MSK, BPSK) for diverse communication needs.

Applications

  • Smart agriculture sensors for soil moisture, temperature, and irrigation control.
  • Industrial IoT (IIoT) telemetry for remote equipment monitoring and predictive maintenance.
  • Asset tracking and fleet management solutions across wide areas.
  • Environmental monitoring networks for air quality, weather, and water level sensing.
  • Smart city applications like smart parking, waste management, and street lighting.

Technical Specifications

Microcontroller/SoCSTM32WLE5JC (ARM Cortex-M4 + Semtech SX126X)
Wireless ProtocolsLoRaWAN®, LoRa®
Frequency Range868 MHz, 915 MHz
RF Transmit Power+20.8 dBm (at 3.3V)
RF Sensitivity-116.5 dBm to -136 dBm
Supply Voltage3.7V - 5V
Operating CurrentNot Specified
Sleep Current2.1 µA (WOR mode)
InterfacesUSB Type-C, 2x12-pin 2.54mm Headers
Antenna ConnectorSMA (K), IPEX (u.FL)
Modulation SupportLoRa, (G)FSK, (G)MSK, BPSK
Operating Temperature-40°C to +85°C
DimensionsApprox. 6 x 4 cm (from shipping info)

Frequently Asked Questions

How do I program the LoRaE5 mini development board?

The board is programmed via the USB Type-C port using STM32 toolchains. You can use the STM32CubeIDE or Arduino IDE with appropriate board support packages. Connect the board, select the STM32WLE5JC target, and flash your compiled firmware. The on-board BOOT button may need to be pressed to enter DFU mode for initial programming.

What antenna should I use with this board, and how is it connected?

The board provides both an SMA female connector and an IPEX (u.FL) connector. For best performance, use a matched LoRa antenna for 868MHz or 915MHz. Connect a standard SMA antenna directly or use an IPEX-to-SMA pigtail. Ensure the antenna impedance is 50 ohms. Only one antenna connector should be used at a time to avoid damaging the RF front-end.

What is the power supply requirement, and how is low-power sleep mode achieved?

Supply voltage ranges from 3.7V to 5V, provided via USB-C or the 2-pin header. For ultra-low power operation, configure the STM32WLE5JC into its deep sleep or Wake-on-Radio (WOR) mode via firmware, reducing current to 2.1 µA. Ensure all unused GPIOs are configured correctly and use a stable 3.3V regulator if powering from a battery to maximize battery life in field deployments.

Which LoRaWAN network servers and libraries are compatible?

The board is compatible with any standard LoRaWAN 1.0.3 stack. You can use Semtech's LoRaMAC-node library ported for STM32, or frameworks like Arduino-LoRaWAN. It connects to public networks like The Things Network (TTN), ChirpStack, or private LoRaWAN servers. Configure the regional frequency plan (EU868, US915, etc.), DevEUI, AppEUI, and AppKey in your firmware to join the network.

Package Includes

  • 1 x LoRaE5 mini (STM32WLE5JC) Development Board

Additional Information

Weight 0.01 kg
Dimensions 4 × 6 × 2 cm