Name: 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 (Unsolder Version)
Brand: WaveShare Electronics
SKU: 34522
Price: 1265.00 INR
Availability: OutOfStock

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 (Unsolder 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 (Unsolder Version)

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₹1,265.00

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SKU: 34522
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The Waveshare Core2021-HF Dual-Band LoRa Module is a high-performance multi-band wireless communication module designed for advanced IoT and LoRaWAN applications. Based on the powerful LR2021 transceiver, this compact module supports multiple frequency bands including 850~930MHz, 2.4GHz, and 1.5~2.5GHz, enabling flexible long-range wireless communication across a wide range of smart devices and industrial systems.

Designed for low-power operation, the module is ideal for battery-powered IoT projects, wireless sensor networks, smart agriculture, industrial automation, smart home systems, and remote monitoring applications. It supports multi-protocol communication and LoRaWAN networking, offering reliable long-distance data transmission with excellent interference resistance and stable connectivity.

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
IPEX4 to SMA cable
2dBi SMA antenna
2.4G antenna

Pinout Definition

Dimensions

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