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Elecrow nRFLR2021 868MHz Wireless Module with nRF52840 & LR2021 Multi-Band & Multi-Protocol (MPN:LMM16221D)
nRFLR2021 LoRa Module–nRF52840 & LR2021 for Multi-Band IoT Connectivity
The nRFLR2021 is a high-performance multi-protocol LoRa module that combines the Nordic nRF52840 MCU with Semtech’s fourth-generation LR2021 LoRa transceiver. It supports Sub-GHz, 2.4 GHz ISM, and licensed S-band connectivity for flexible terrestrial and satellite IoT applications. The module supports LoRaWAN 1.0.4 Class A, B, and C, as well as Amazon Sidewalk, Sigfox, Wi-SUN FSK, W-MBUS, and Z-Wave, while the nRF52840 adds Bluetooth LE, BLE Mesh, NFC, Thread, and Zigbee connectivity. With FLRC speeds up to 2.6 Mbps, built-in AT commands, SDK support, UART connectivity, and low-power operation, the nRFLR2021 is ideal for global IoT, remote sensing, asset tracking, industrial applications, and emergency communication.
Features
- LoRa Transceiver: Semtech fourth-generation LR2021 with Sub-GHz, 2.4 GHz ISM, and licensed S-band support
- Multi-Protocol Support: LoRaWAN 1.0.4 Class A/B/C, Amazon Sidewalk, Sigfox, Wi-SUN FSK, W-MBUS, and Z-Wave
- Wireless Connectivity: nRF52840 with Bluetooth LE, BLE Mesh, NFC, Thread, and Zigbee
- High-Speed Communication: FLRC modulation with data rates up to 2.6 Mbps
- LoRa Modulation: Supports LoRa, (G)FSK, LR-FHSS, and FLRC modulation
- Frequency Range: Sub-GHz 150–960 MHz, 2.4 GHz ISM, and licensed S-band 1900–2200 MHz
- Long-Range Connectivity: Typical communication range of 5–8 km, with over 12 km possible under line-of-sight conditions
- Low Power: Chip-level sleep current as low as 470 nA and Sub-GHz receive current of 5.7 mA
- Easy Development: Built-in AT command firmware, SDK support, and UART interface for quick integration
- Industrial Grade: Operating temperature from -40°C to +85°C
- Certifications: FCC ID and CE (RED)
Specifications
- Processor: nRF52840 processor, dual-core 32-bit, 64MHz main frequency,
- RF chip: Semtech LR2021 Chip
- Transmit Power TX: 22 dBm@Max(SUB-GHz), 12dBm(2.4 GHz)
- Receiving Sensitivity: -141.5dBm @SF12/BW=125kHz
- Demodulator: Support LoRa/(G)FSK signal modulation，SF5~SF12; Support 150MHz-960MHz configuration;
- Data Transfer Rate: LoRa 0.0458–125 kbps; FLRC 260 kbps–2.6 Mbps
- Frequency: Sub-GHz 850–930 MHz, 2.4 GHz ISM, and S-band 1900–2200 MHz
- Communication Interface: SPI(0~10Mbps)
- Lead Pin: Such as SPI signal, VCC, multiple GND pins, NRST, ANT (Sub-GHz), ANT (2.4 GHz), multiple DIO pins, TX control, RX control, BUSY state, etc.
- Antenna: SMT pins, impedance @50 Ω (Sub-GHz antenna pin + 2.4 GHz antenna pin)
- Reference Power Consumption
- Sleep power consumption: 1.4 µA
- Standby power consumption: 1.16mA
- Receive power consumption (including MCU)
- 2.4GHz: 6.10mA
- 868/915MHz: 5.75mA
- Transmit power consumption (including MCU)
- 868MHz: 16.5mA
- 2.4GHz: 30.5mA
- 915MHz: 101mA
- Communication Distance: 6~8km, maximum over 15km
- 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 surface mount, LGA package, 1mm board thickness
- Weight: 3g
Applications
- Wireless video and image transmission
- Smart cities
- Smart agriculture
- Industrial automation
- Environmental monitoring
- Logistics management
- Meter reading
- Satellite IoT
- Marine monitoring
- Cross-border tracking
- Mesh networks
- Internet of Things (IoT)
Package Includes
- 1x nRFLR2021 Wireless Transceiver Module
Warranty Terms :
Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.
Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.
What to take care of ?
Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.
Who pays the return shipping cost?
Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.
What voids warranty?
Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.
If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.
Following items are not eligible for return under any circumstances
- Device Programmers / Dongles
- Soldering Consumables (Wire, Flux etc)
