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Waveshare Core2021-HF Dual-Band LoRa Module, Based on LR2021 Transceiver, Supports 850 ~ 930MHz, 2.4GHz And 1.5~2.5GHz Frequency Bands, Low-power And Multi-protocol IoT LoRaWAN Module (Solder Version)

Waveshare Core2021-HF Dual-Band LoRa Module, Based on LR2021 Transceiver, Supports 850 ~ 930MHz, 2.4GHz And 1.5~2.5GHz Frequency Bands, Low-power And Multi-protocol IoT LoRaWAN Module (Solder Version)
Waveshare Core2021-HF Dual-Band LoRa Module, Based on LR2021 Transceiver, Supports 850 ~ 930MHz, 2.4GHz And 1.5~2.5GHz Frequency Bands, Low-power And Multi-protocol IoT LoRaWAN Module (Solder Version)
Waveshare Core2021-HF Dual-Band LoRa Module, Based on LR2021 Transceiver, Supports 850 ~ 930MHz, 2.4GHz And 1.5~2.5GHz Frequency Bands, Low-power And Multi-protocol IoT LoRaWAN Module (Solder Version)
Waveshare Core2021-HF Dual-Band LoRa Module, Based on LR2021 Transceiver, Supports 850 ~ 930MHz, 2.4GHz And 1.5~2.5GHz Frequency Bands, Low-power And Multi-protocol IoT LoRaWAN Module (Solder Version)
Waveshare Core2021-HF Dual-Band LoRa Module, Based on LR2021 Transceiver, Supports 850 ~ 930MHz, 2.4GHz And 1.5~2.5GHz Frequency Bands, Low-power And Multi-protocol IoT LoRaWAN Module (Solder Version)
Waveshare Core2021-HF Dual-Band LoRa Module, Based on LR2021 Transceiver, Supports 850 ~ 930MHz, 2.4GHz And 1.5~2.5GHz Frequency Bands, Low-power And Multi-protocol IoT LoRaWAN Module (Solder Version)
Waveshare Core2021-HF Dual-Band LoRa Module, Based on LR2021 Transceiver, Supports 850 ~ 930MHz, 2.4GHz And 1.5~2.5GHz Frequency Bands, Low-power And Multi-protocol IoT LoRaWAN Module (Solder Version)
Waveshare Core2021-HF Dual-Band LoRa Module, Based on LR2021 Transceiver, Supports 850 ~ 930MHz, 2.4GHz And 1.5~2.5GHz Frequency Bands, Low-power And Multi-protocol IoT LoRaWAN Module (Solder Version)
Waveshare Core2021-HF Dual-Band LoRa Module, Based on LR2021 Transceiver, Supports 850 ~ 930MHz, 2.4GHz And 1.5~2.5GHz Frequency Bands, Low-power And Multi-protocol IoT LoRaWAN Module (Solder Version)
Waveshare Core2021-HF Dual-Band LoRa Module, Based on LR2021 Transceiver, Supports 850 ~ 930MHz, 2.4GHz And 1.5~2.5GHz Frequency Bands, Low-power And Multi-protocol IoT LoRaWAN Module (Solder Version)
WaveShare Electronics
Waveshare Core2021-HF Dual-Band LoRa Module, Based on LR2021 Transceiver, Supports 850 ~ 930MHz, 2.4GHz And 1.5~2.5GHz Frequency Bands, Low-power And Multi-protocol IoT LoRaWAN Module (Solder Version)
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Waveshare Core2021-HF Dual-Band LoRa Module, Based on LR2021 Transceiver, Supports 850 ~ 930MHz, 2.4GHz And 1.5~2.5GHz Frequency Bands, Low-power And Multi-protocol IoT LoRaWAN Module (Solder Version)

The Waveshare Core2021-HF Dual-Band LoRa Module is a compact and high-performance wireless communication module designed for advanced IoT and LoRaWAN applications. Based on the powerful LR2021 transceiver, this module supports multiple frequency bands including 850~930MHz Sub-GHz, 2.4GHz, and 1.5~2.5GHz ranges, enabling flexible long-range and high-speed wireless connectivity for smart devices and industrial applications.

The module features low power consumption and multi-protocol support, making it suitable for battery-powered IoT nodes, smart agriculture, wireless monitoring, industrial automation, and remote sensing projects. Its integrated RF design ensures stable signal transmission, enhanced anti-interference performance, and reliable long-distance communication.


User Manual / Datasheet / Example Codes Etc.


This item is available in multiple variants :

  • Core2021-HF (Unsolder Version): Link
  • Core2021-HF (Solder Version): Link
  • Core2021-LF (Unolder Version): Link
  • Core2021-LF (Solder Version): Link


Features

  • Based on the fourth-generation LoRa multi-band transceiver LR2021
  • Supports Sub-GHz (410 ~ 510 MHz / 850 ~ 930 MHz), 2.4 GHz ISM band, and 1.5 ~ 2.5 GHz licensed bands
  • Connects to the cloud via LoRa or LoRaWAN protocol through a gateway, enabling low-power wide-area networking (LPWAN)
  • Compatible with multiple protocols including LoRa, FLRC, FSK, BLE, and ZigBee
  • SPI communication interface, supports mainstream MCU platforms for seamless integration and migration
  • Suitable for IoT applications such as industrial telemetry, smart home, environmental monitoring, and remote data acquisition
  • Comes with online development resources and manual (examples for ESP32 / Raspberry Pi / Arduino / STM32 / Raspberry Pi Pico)


Specifications

  • Version: Core2021-HF
  • RF chip: LR2021
  • Frequency range
    • HF: 850 ~ 930MHz
    • 2.4 GHz ISM band, 1.5 ~ 2.5 GHz licensed bands
    • Modulation LoRa, FLRC, FSK, BLE, ZigBee
  • Data rate
    • LoRa: 0.091Kbps ~ 125Kbps
    • FLRC: 0.13 Mbps ~ 2.6 Mbps
    • FSK: 0.5 Kbps ~ 2 Mbps
    • BLE: 125 kbps / 500 kbps / 1 Mbps / 2 Mbps
  • Emit power
    • -10dBm ~ 22dBm at Sub-GHz band
    • -17dBm ~ 12dBm at ISM band
  • Receiver sensitivity
    • -141.5dBm at Sub-GHz band, SF=7, CR4_5, BWL=125KHz
    • -130.5dBm at ISM band, SF=12, CR4_5, BWL=800KHz
    • -111dBm at FLRC，260 Kbps
    • -97dBm at BLE，2 Mbps
  • Typical Range
    • Sub-GHz band: 5KM
    • ISM band: 2KM
    • Spreadind factor: SF5 ~ SF12
  • Electrical Characteristics
    • Operating voltage: 3.3V (maximum 3.7V)
    • Logic Voltage: 3.3V (A level converter is required for other logic levels)
    • Module power consumption
      • Sub-GHz band:
      • emitting current: 105mA at 22dBm
      • receiving current: 5.8mA at 125KHz
      • ISM band:
      • emitting current: 23mA at 12dBm
      • receiving current: 6.4mA at 125KHz
  • Hardware Specifications
    • Communication bus: SPI
    • Crystal Oscillator XTAL 32MHz
    • Antenna Interface: IPEX-4 connector and castellated hole (additional operation required)
    • Antenna Protection: TVS protection
    • Operating temperature: -40℃ ~ 85℃
    • Connector: castellated edge / solder holes, pitch 2.54mm
    • Dimensions: 19.00×22.00mm

Package Includes

  • Core2021-HF with pre-soldered headers x1
  • IPEX4 to SMA cable x1
  • 2dBi SMA antenna x1
  • 2.4G antenna x1


Pinout Definition

Dimensions

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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)


Tags: Waveshare , LoRa Module , LoRaWAN , Wireless Module
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