Also in this family: nRFLR1262, nRFLR1110, and nRFLRCC68. The Elecrow nRFLR1121 Wireless Transceiver Module combines the powerful Nordic nRF52840 microcontroller with the advanced Semtech LR1121 LoRa transceiver, delivering a high-performance, ultra-low-power, and long-range wireless communication solution. Supporting Bluetooth 5.3, LoRaWAN 1.0.4 (Class A/B/C), and LoRa point-to-point (P2P) communication, this module operates across the 850–930 MHz ISM band (including 868 MHz and 915 MHz). It offers a maximum transmit power of +21 dBm, data rates from 1.91 to 62.5 Kbps, and communication distances of up to 10 km. The module also supports global 2.4 GHz spectrum and Sub-GHz communication, along with S-band LR-FHSS (Long Range – Frequency Hopping Spread Spectrum) for satellite connectivity (note: satellite and terrestrial modes cannot operate simultaneously). This makes it ideal for remote and infrastructure-free environments, such as meteorological and hydrological monitoring systems. With built-in AT command firmware, SDK support for custom development, and rich peripheral interfaces, the nRFLR1121 module is designed for industrial-grade reliability and flexibility. Key Features High Performance: Up to +21 dBm transmit power, 1.91–62.5 kbps data rate, -141 dBm sensitivity (@SF12/BW=125 kHz), and 166 dB link budget Ultra-Low Power Consumption: Sleep current as low as 6 µA Multi-Band Support: Supports Sub-GHz, global 2.4 GHz spectrum, and S-band; enables LoRa point-to-point (P2P) communication Wide Wireless Compatibility: Supports 850–930 MHz LoRa & LoRaWAN ISM bands, Bluetooth Low Energy, Bluetooth Mesh, NFC, Thread, and Zigbee Flexible Development: Built-in AT command firmware with SDK support for customized development; easy control via UART interface Long-Range Communication: Transmission distance up to 10 km Rich Interfaces: Multiple GPIOs including UART, I2C, ADC, etc., for flexible integration Compact Design: Small form factor of 20 × 20 × 3.5 mm Certified & Reliable: Complies with FCC, CE, and RoHS standards Applications Smart City Infrastructure Smart Agriculture Industrial Automation Environmental Monitoring Smart Home Systems Logistics & Asset Management Medical & Healthcare Devices Remote Monitoring & IoT Deployments Technical Specifications Category Specification Processor CPU nRF52840 processor, dual-core 32-bit, 64 MHz main frequency RF Chip Chipset Semtech LR1121 LoRa Specification Transmit Power (TX) Up to +21 dBm Receiving Sensitivity -141 dBm Link Budget Up to 166 dB Demodulator Supports LoRa / (G)FSK / GMSK / Sigfox modulation; supports S-band satellite frequency hopping spread spectrum communication LoRa Frequency Range 150 MHz to 960 MHz and 2400 MHz bands (configurable) Spreading Factor SF5 ~ SF12 Wireless Connection Bluetooth Low Energy, Bluetooth Mesh, NFC, Thread, Zigbee Data Transfer Rate 1.91 – 62.5 Kbps Other Frequency 850 ~ 930 MHz (supports 868 MHz and 915 MHz ISM bands) Communication Interface SPI (0 ~ 10 Mbps) Lead Pin SPI, VCC, multiple GND, NRST, ANT, TX/RX control, BUSY status, NFC, SWD debugging pins Antenna External antenna via RF pins (no onboard antenna) Power Consumption 6 µA (sleep), 126 mA (transmit + MCU), 18 mA (receive + MCU) Communication Distance Typical 5–6 km, up to 10 km Crystal Type Industrial-grade 32 MHz TCXO LoRaWAN Protocol Class A / B / C (LoRaWAN 1.0.4 compliant) Operating Voltage 1.8 ~ 3.7 V Operating Temperature -40°C to +85°C (industrial grade) Package Size 20 × 20 × 3.5 mm, 80-pin SMT, LGA package Weight 3 g Why Choose nRFLR1121? The nRFLR1121 module stands out with its dual wireless capability (LoRa + BLE), satellite communication support, and industrial-grade reliability, making it a powerful solution for next-generation IoT deployments-especially in remote and mission-critical applications. Technical Documents Wiki nRFLR1121 Wireless Transceiver Module DataSheet Comparison Table of Elecrow LoRa Modules LoRa is a registered trademark of Semtech Corporation. LoRaWAN is a trademark of the LoRa Alliance. USB-C is a registered trademark of USB Implementers Forum. MCCI and MCCI Catena are registered trademarks of MCCI Corporation. All other trademarks are the property of their respective owners.
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