SKU: IOWC-1744
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Seeed Studio Studio WM1302 LoRaWAN Gateway Module (SPI) - EU868, SX1302

₹4,379.00 (Inclusive of all taxes)
Out of Stock

The Seeed Studio Studio WM1302 is an mPCIe LoRaWAN gateway concentrator module based on the Semtech SX1302 transceiver, designed for building scalable IoT network infrastructure. It connects via SPI to a host system (like a Raspberry Pi) and supports the EU868 frequency band for deploying compliant LoRaWAN 1.0.2 gateways.

Features

  • Semtech SX1302 LoRa concentrator with dual SX1250 Tx/Rx front-ends for robust packet handling.
  • High RF output up to 26dBm and excellent receiver sensitivity down to -139dBm for extended network range.
  • mPCIe form factor with SPI host interface for easy integration into single-board computers and embedded systems.
  • Supports multiple LoRaWAN regional profiles including EU868, AS923, AU915, KR920, and IN865.
  • Powered by an onboard STM32L412 Cortex-M4 MCU for managing the concentrator and SPI communication.

Out of stock

Description

The WM1302 LoRaWAN Gateway Module is a professional-grade concentrator designed to form the core radio of a cost-effective, scalable LoRaWAN network gateway. Built around Semtech’s SX1302 baseband processor and paired with two SX1250 RF front-ends, it enables simultaneous reception of up to 8 LoRa packets and 1 FSK packet, providing the necessary capacity for dense IoT sensor deployments.

Host communication is handled via a low-latency SPI interface, making it compatible with popular single-board computers like the Raspberry Pi for running open-source gateway software stacks such as ChirpStack or The Things Network Gateway. The module’s integrated STM32L412 microcontroller manages the SX1302, handles SPI protocol translation, and provides firmware update capability, simplifying host driver development.

Key Features

  • High-performance LoRaWAN 1.0.2 compliant gateway concentrator in a compact mPCIe form factor.
  • Dual independent RF paths (SX1250) support diversity reception and improve packet capture in challenging RF environments.
  • Optimized for low-power operation with configurable standby and active states to manage gateway energy consumption.
  • Flexible regional band support via firmware configuration, allowing deployment in multiple global markets.
  • Industrial-grade design with u.FL antenna connector for reliable, low-loss RF connection to external antennas.
  • Ideal for DIY gateway builds, proof-of-concept deployments, and scalable commercial IoT network rollouts.

Applications

  • Building DIY or commercial LoRaWAN gateways for The Things Network (TTN) or private networks.
  • Industrial IoT (IIoT) telemetry gateways for sensor data aggregation in remote sites.
  • Smart city infrastructure for connecting parking sensors, waste management, and environmental monitors.
  • Agricultural IoT networks for soil moisture, weather, and livestock tracking over wide areas.
  • Research and development platforms for LoRaWAN network capacity and protocol testing.

Technical Specifications

Concentrator ChipsetSemtech SX1302 with 2x SX1250 Tx/Rx Front-ends
Host MicrocontrollerSTMicro STM32L412 Arm Cortex-M4 @ 80 MHz
Wireless ProtocolLoRaWAN 1.0.2
Frequency Band (This Variant)EU868
Supported RegionsEU868, AS923, AS920, AU915, KR920, IN865
RF Transmit PowerUp to 26 dBm @ 3.3V
Receiver SensitivityDown to -139 dBm (SF12, BW 125 kHz)
Host InterfaceSPI (via 52-pin mPCIe edge connector)
Supply Voltage3.3V
Operating Current (SPI)Standby: 7.5 mA, Tx: up to 415 mA, Rx: 40 mA
Antenna Connectoru.FL
DimensionsApprox. 10 x 6 x 1 cm (mPCIe standard)

Frequently Asked Questions

What host system do I need to use the WM1302 SPI module as a gateway?

You need a single-board computer like a Raspberry Pi (3/4/5) with a free mPCIe slot or an adapter. Install the gateway software (e.g., ChirpStack Gateway OS or TTN Gateway software) and connect the module via SPI. The host provides power, processing, and Ethernet/Wi-Fi backhaul to forward LoRaWAN packets to a network server.

How do I configure the WM1302 for a different frequency region like US915?

This specific hardware variant is tuned for EU868. While the SX1302 chipset supports multiple regions, switching may require different RF components. For other bands, you must purchase the corresponding WM1302 hardware variant (e.g., US915). Firmware configuration alone cannot change the fundamental RF band of this module.

What is the power supply requirement for the WM1302 SPI module?

The module requires a stable 3.3V DC supply, which is typically provided by the host mPCIe slot. Ensure your host board can deliver sufficient current, especially during transmission peaks (up to 415mA). Use a high-quality, low-noise power regulator to maintain stable RF performance and avoid packet errors.

Can I update the firmware on the onboard STM32 microcontroller?

Yes, the STM32L412 firmware can be updated via the SPI interface using dedicated programming tools from STMicroelectronics (like STM32CubeProgrammer) or through bootloader commands. Seeed Studio Studio may provide firmware binaries and update procedures for bug fixes or feature enhancements on their wiki or GitHub repository.

Package Includes

  • 1 x WM1302 LoRaWAN Gateway Module (SPI) - EU868

Additional Information

Weight 0.007 kg
Dimensions 10 × 6 × 1 cm