Elecrow nRFLR1121 Wireless Transceiver Module w/ nRF52840 & SX1121

Name: Elecrow nRFLR1121 Wireless Transceiver Module w/ nRF52840 &amp; SX1121
Brand: Elecrow
SKU: IOWC-0096
Price: 1609.00 INR
Availability: OutOfStock

₹1,609.00 (Inclusive of all taxes)

Out of Stock

The Elecrow nRFLR1121 is a compact, multi-protocol wireless transceiver module integrating Nordic Semiconductor’s nRF52840 MCU and Semtech’s SX1121 LoRa chip, supporting LoRaWAN, Bluetooth 5.3, Zigbee, Thread, and NFC for long-range, low-power IoT deployments.

Features

Dual-Chip Architecture: Combines Nordic Semiconductor nRF52840 MCU (Bluetooth 5.3, Zigbee, Thread) with Semtech SX1121 LoRa transceiver for versatile, multi-protocol connectivity.
Ultra-Long Range & Low Power: Achieves up to 10km communication with +20dBm TX power while drawing only 6μA in sleep mode for battery-operated remote sensors.
Multi-Band Frequency Support: Operates across sub-GHz (850-930MHz), 2.4GHz, and S-band (LR-FHSS), enabling point-to-point, LoRaWAN, and satellite IoT links.
Rich Peripheral Interfaces: Provides UART, SPI, I2C, ADC, and SWD debug pins for seamless sensor integration and firmware development.
Developer-Friendly Integration: Features pre-loaded AT command firmware and comprehensive SDK support for rapid prototyping and deployment.

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Description

The Elecrow nRFLR1121 Wireless Transceiver Module is a high-performance, system-on-module solution engineered for demanding IoT applications requiring both local mesh networking and long-range, low-power telemetry. Its core integrates the powerful ARM Cortex-M4 based nRF52840, handling Bluetooth 5.3, Zigbee, Thread, and NFC protocols, with the Semtech SX1121 transceiver dedicated to sub-GHz LoRa and LR-FHSS satellite communication. This dual-chip architecture provides unparalleled flexibility for hybrid network topologies.

Designed for extreme environments and energy efficiency, the module operates from -40°C to +85°C and features deep sleep currents as low as 6μA, making it ideal for solar-powered or battery-backed field deployments. With a compact 20x20x3.5mm LGA package, it delivers up to +20dBm transmit power and -141dBm receiver sensitivity, ensuring robust connectivity over distances up to 10 kilometers. It is a foundational building block for industrial telemetry, smart agriculture, asset tracking, and remote environmental monitoring systems.

Key Features

Multi-Protocol IoT Core: Simultaneously supports LoRaWAN Class A/B/C, Bluetooth 5.3, Zigbee, Thread, NFC, and point-to-point LoRa for adaptive network design.
Ultra-Low Power Operation: Engineered for years of battery life with optimized sleep modes and efficient power management across all supported RF protocols.
Extended Range Capability: Leverages high-output power and exceptional receiver sensitivity for reliable communication in challenging, non-line-of-sight conditions.
Satellite IoT Ready (LR-FHSS): S-band support prepares the module for direct-to-satellite connectivity, enabling truly global asset tracking and data collection.
Comprehensive Development Support: Ships with AT command firmware for quick UART-based control and full access to Nordic Semiconductor and Semtech SDKs for custom embedded application development.
Robust Industrial Design: Compact LGA form factor with a wide operating temperature range ensures reliability in harsh outdoor and industrial settings.

Applications

Industrial IoT & Telemetry: Remote monitoring of equipment status, tank levels, and environmental conditions in oil & gas, utilities, and manufacturing.
Smart Agriculture & Precision Farming: Soil moisture sensing, livestock tracking, and microclimate monitoring across vast, off-grid farmland.
Asset Tracking & Logistics: Global tracking of shipping containers, pallets, and high-value assets using hybrid LoRaWAN and satellite (LR-FHSS) networks.
Smart City & Utility Networks: Building smart street lighting, waste management, and distributed water/gas meter reading systems with long-range, low-power backhaul.
Wireless Sensor Mesh Networks: Creating resilient, self-healing networks for building automation, home security, and industrial safety systems using Bluetooth mesh or Thread.

Technical Specifications

Microcontroller / SoC	Nordic Semiconductor nRF52840 (ARM Cortex-M4)
Wireless Protocols	LoRa/LoRaWAN, Bluetooth 5.3, Zigbee, Thread, NFC
Frequency Range	850-930MHz (LoRa), 2.4GHz (BLE/Zigbee/Thread), S-band (LR-FHSS)
RF Transmit Power	Up to +20 dBm (LoRa)
RF Sensitivity	-141 dBm (LoRa)
Supply Voltage	Not Specified
Operating Current / Sleep Current	Sleep: ~6 μA
Interfaces	UART, SPI, I2C, ADC, SWD
Antenna Connector	Integrated LGA pads for antenna matching
Operating Temperature	-40°C to +85°C
Dimensions	20 mm x 20 mm x 3.5 mm

Frequently Asked Questions

How do I configure the nRFLR1121 module for LoRaWAN communication?

Connect the module via UART to your host MCU. Use the pre-loaded AT command set, starting with 'AT' to check communication. Configure LoRaWAN parameters like DevEUI, AppEUI, and AppKey using specific AT commands (e.g., AT+LORAWAN=1). Set the frequency band (e.g., EU868) and device class (A/B/C) before joining the network via OTAA or ABP. Refer to the Elecrow AT command manual for the complete syntax and sequence.

What is the procedure for updating or developing custom firmware for the nRF52840 on this module?

Use the SWD (Serial Wire Debug) interface pins on the module with a compatible programmer/debugger like a Segger or Nordic Semiconductor's nRF52840 DK. Develop your application using the nRF Connect SDK or Arduino Core for nRF52. Compile and flash the firmware using tools like nRF Command Line Tools or Segger's Ozone. Ensure you manage both the nRF52840 application and the SX1121 driver for full LoRa functionality in a dual-chip setup.

What antenna should I use and how is it connected to the nRFLR1121 module?

The module uses LGA pads for antenna connection, requiring a matched antenna to be soldered directly or via a short trace. For sub-GHz LoRa (850-930MHz), use a monopole or dipole antenna tuned to your specific frequency. For 2.4GHz operations (Bluetooth/Zigbee), a compatible 2.4GHz antenna is needed. Proper impedance matching (typically 50 ohms) on your PCB design is critical for optimal RF performance and to achieve the advertised range and sensitivity.