SKU: IOWC-1670
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Nebulae NLN500a LoRa Module STM32WL 868MHz

₹1,049.00 (Inclusive of all taxes)
Out of Stock

The Nebulae NLN500a is an STM32WL-based LoRa module integrating an ARM Cortex-M4 microcontroller and a LoRa transceiver on a single chip. Operating in the 868MHz band, it supports long-range, low-power IoT deployments and is pre-certified for EN 300 220 compliance.

Features

  • Integrated STM32WL SoC combines ARM Cortex-M4 MCU with a LoRa transceiver for compact, efficient designs.
  • Delivers up to +20 dBm output power and -135 dBm sensitivity for robust long-range communication up to 10 km LoS.
  • Ultra-low power operation from 1.8V to 3.6V, ideal for battery-powered remote sensors and IoT nodes.
  • Features hardware-based AES-256 encryption and true random number generation for secure LoRaWAN network joins.
  • Provides extensive I/O with up to 43 digital pins, analog inputs, SPI, I2C, and multiple UARTs for peripheral integration.

Out of stock

Description

The Nebulae NLN500a LoRa Module leverages the integrated architecture of the STM32WL microcontroller, which houses both an ARM Cortex-M4 core and a Semtech SX126x-compatible LoRa transceiver. This single-chip solution simplifies PCB layout, reduces BOM cost, and optimizes power consumption for LPWAN applications. The module operates within the EU863-870 MHz and IN865 MHz frequency bands, supporting regional LoRaWAN protocols.

Engineered for industrial-grade reliability, the NLN500a features an optimized 50Ω RF interface for stable antenna matching and includes pre-certification for EN 300 220 standards, accelerating time-to-market for commercial products. Its extensive GPIO and serial interface set enables seamless connection to sensors, displays, and other system components, making it a versatile foundation for scalable IoT networks in smart agriculture, asset tracking, and environmental monitoring.

Key Features

  • World's first MCU with integrated LoRa transceiver (STM32WL) for reduced footprint and complexity.
  • Ultra-low power design supports deep sleep modes, extending battery life in field deployments.
  • Hardware AES-256 accelerator ensures secure Over-The-Air Activation (OTAA) and Activation By Personalization (ABP).
  • Pre-certified RF module simplifies regulatory compliance for EU and Indian market deployments.
  • Comprehensive peripheral set includes multiple SPI, I2C, and USART interfaces for flexible system expansion.
  • Robust RF performance with high output power and excellent receiver sensitivity for challenging link budgets.

Applications

  • Smart Agriculture: Soil moisture, temperature, and humidity monitoring across vast fields.
  • Industrial IoT (IIoT): Remote telemetry for tank levels, equipment status, and environmental conditions.
  • Asset & Fleet Tracking: Real-time location and condition monitoring of goods in transit.
  • Smart City Infrastructure: Waste management, smart parking, and streetlight monitoring networks.
  • Environmental Sensing: Air quality, water level, and wildlife tracking in remote areas.

Technical Specifications

Microcontroller/SoCSTM32WL (ARM Cortex-M4 with integrated LoRa Transceiver)
Wireless ProtocolsLoRa, LoRaWAN (EU868, IN865)
Frequency RangeEU863–870 MHz, IN865 MHz
RF Transmit PowerUp to +20 dBm
Receiver SensitivityDown to -135 dBm (SF12)
Supply Voltage1.8V to 3.6V
InterfacesUp to 43 Digital I/O, Analog Inputs, 2x SPI, 3x I2C, 2x USART, 1x LPUART
Antenna ConnectorOptimized 50Ω RF Interface (PCB pad / u.FL compatible)
EncryptionAES-256 Hardware Accelerator
CertificationEN 300 220 Pre-certified
Dimensions32.6 mm x 16 mm

Frequently Asked Questions

What development frameworks are compatible with the NLN500a module?

The module is fully programmable using STMicroelectronics' STM32CubeIDE and STM32CubeMX configuration tools with the LoRaWAN MAC stack. You can also use the Arduino Core for STM32 or Mbed OS after configuring the appropriate board support package and radio driver for the integrated SX126x transceiver. Development involves connecting via SWD (Serial Wire Debug) pins for flashing and debugging your application firmware.

How do I configure the module for LoRaWAN network joining (OTAA vs ABP)?

Network joining is managed through your application firmware using the LoRaWAN stack. For OTAA (Over-The-Air Activation), you must provision the DevEUI, AppEUI, and AppKey from your LoRaWAN network server (like The Things Network or ChirpStack) into the device's secure element. For ABP (Activation by Personalization), you directly assign the Device Address, Network Session Key, and App Session Key. The hardware AES-256 accelerator securely handles the encryption and decryption processes for both join methods.

What is the recommended antenna and how should it be connected?

Use a 50Ω impedance antenna tuned for the 868MHz (or 865MHz for India) frequency band, such as a dipole or helical antenna with an SMA or u.FL connector. The module's RF output is designed for a 50Ω matched load. For optimal range, connect the antenna via a short, high-quality u.FL to SMA pigtail cable if using an external antenna, ensuring the connector is firmly seated to minimize insertion loss and VSWR.

What are the typical current consumption figures in active and sleep modes?

Current consumption varies based on MCU activity and radio state. During active LoRa transmission at +20 dBm, expect peaks around 120 mA. In receive mode, current draw is approximately 15 mA. The STM32WL supports multiple low-power modes: in Stop 2 mode with RAM retention, consumption can be as low as 5 μA, making it suitable for battery-powered sensors that wake up periodically to transmit data.

Package Includes

  • 1 x Nebulae NLN500a LoRa Module

Additional Information

Weight 0.007 kg
Dimensions 3.26 × 1.6 cm