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Elecrow nRFLR1121 Wireless Transceiver Module-Integrates Nordic nRF52840 and Semtech SX1121

Description

The Elecrow nRFLR1121 module integrates the Nordic nRF52840 microcontroller and the Semtech LR1121 LoRa transceiver chip. It is a high-performance, low-power, long-range transceiver module. It supports Bluetooth 5.3 and low-power Bluetooth, complies with the A, B, and C classes of the LoRaWAN 1.0.4 specification. And it supports LoRa point-to-point (P2P) communication mode, covering the 850~930MHz (applicable to 868MHz, 915MHz) global ISM frequency band, with a maximum transmit power of +20dBm, a transmission rate range of 1.91~62.5Kbps, and a transmission distance of up to 10 km. In addition, the module supports ground ISM band communications, covering the global 2.4GHz spectrum and Sub-GHz band, and also supports S-band LR-FHSS (Long Range - Frequency Hopping Spread Spectrum) technology for satellite connection (the two cannot work at the same time). This makes it suitable for remote areas without ground network coverage, such as environmental monitoring of meteorological stations and hydrological stations and transmits data to the central server via satellite communication.

The nRFLR1121 module has built-in AT command firmware, supports SDK customized development, and rich peripheral interfaces provide high flexibility to meet diverse development needs. Designed in accordance with industrial standards, the nRFLR1121 module is an ideal choice for high-reliability applications such as remote monitoring, ship communications, and rescue missions.

Self-developed by Elecrow with exclusive design. Customization can be discussed for bulk orders.

For customized requirements (based on MOQ), please contact us at service@elecrow.com.

Model CIL13621X

nrflr1121_transceiver_module1

Features

  • High performance: Maximum transmit power can reach +20dBm, support 1.91~62.5kbps transmission rate, -141dbm sensitivity SF12/BW=125kHz, 166db link budget;
  • Ultra-low power consumption, sleep current is only 6uA;
  • Supports sub-GHz and global 2.4GHz spectrum, as well as S-band, and supports LoRa point-to-point (P2P) communication;
  • Wireless connection supports 850~930MHz global LoRa&LoRaWAN ISM frequency, supports low-power Bluetooth, Bluetooth mesh network, NFC, Thread and Zigbee;
  • Built-in AT command firmware and support the use of SDK for customized product development, and the AT command set can be easily used through the UART interface;
  • Long-distance communication, the communication distance can reach 10km;
  • Rich peripherals, the module leads to a variety of GPIO interfaces such as UART, I2C, ADC, etc., providing great flexibility;
  • Compact form factor with only 20x 20x 3.5 mm
  • FCC, CE RoHS certification

Specification

  • Processor RF chipnRF52840 processor, dual-core 32-bit, 64MHz main frequency
    RF chip Semtech LR 1121Chip
    LoRa Specification
    Transmit Power TX +22 dBm@Max
    Receiving Sensitivity -141dBm
    Link Budget Support 166db link budget
    Demodulator Support LoRa/(G)FSK/GMSK/Sigfox signal modulation;Support S-band satellite frequency hopping spread spectrum communication;
    LoRa Frequency Range Supports configuration in the 150MHz to 960MHz and 2400 MHz bands;
    Spreading Factor SF5~SF12
    Wireless connection Supports low-power Bluetooth, Bluetooth mesh network, NFC, Thread and Zigbee
    Data Transfer Rate Supports data transmission rates from 1.91 to 62.5 Kbps
    Other
    Frequency Covering 850~930MHz (applicable to 868MHz, 915MHz)
    Communication Interface SPI(0~10Mbps)
    Lead Pin Such as SPI signal, VCC, multiple GND, NRST, ANT, TX control, RX control, BUSY status, NFC, SWD debugging pin, etc.
    Antenna Not onboard, via RF pins
    Reference Power Consumption 6uA (sleep), 126mA (transmit + MCU), 18mA (receive + MCU)
    Communication Distance 5~6km, maximum over 10km
    Crystal Type Industrial grade 32MHz TCXO
    LoRaWAN Protocol Class A/B/C (compliant with LoRaWAN 1.0.4 specification)
    Operating Voltage 1.8~3.7V
    Operating Temperature -40℃~+85℃, Industrial standard design
    Package Size 20*20*3.5mm, 80-Pin, SMT patch, LGA package;
    Weight 3g

Pin Definition:

nRFLR1121-Pin_Definition2

System Diagram:

nRFLR1121-Pin_Definition3

Dimension:

nRFLR1121-Pin_Definition4

Resources

Github link：

AT Command Description:

How to buy

Please visit this page to purchase Elecrow nRFLR1121 Wireless Transceiver Module.

Support

If you have any problem about how to use it, you can connect to us at the bottom-right of bazzer or contact to techsupport@elecrow.com to get technology support.