Core2021 LoRa LR2021 HF LF SPI LoRaWAN For Sub-GHz and 2.4GHz

Core2021 LoRa LR2021 HF LF SPI LoRaWAN For Sub-GHz and 2.4GHz

$13.9

Brand：SpotPear

SKU：021102500000

Date：2026-05-08 15:47

Part Number：

Core2021-HF Core2021-HF-M Core2021-LF Core2021-LF-M

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Core2021 LF/HF Dual-Band LoRa Module, Based on LR2021 Transceiver, Supports Sub-GHz, 2.4GHz And 1.5~2.5GHz Frequency Bands, Low-power And Multi-protocol IoT LoRaWAN Module

Core2021 Dual-Band LoRa Module

Supports Sub-GHz, 2.4GHz And 1.5 ~ 2.5GHz Frequency Bands

Supports FLRC Modulation, With Data Rate Up To 2.6 Mbps

Version Options
HF version, 850 ~ 930MHz frequency
Applicable to Europe, North America and Oceania
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)
Product Comparison
MODEL CORE2021-XF CORE1121-XF CORE1262-XF
FREQUENCY SUPPORT Sub-GHz (410 ~ 510 MHz or 850 ~ 930 MHz), 2.4 GHz ISM band, and 1.5 ~ 2.5 GHz licensed bands Sub-GHz (410 ~ 510 MHz or 850 ~ 930 MHz)
MODULATION LoRa, FLRC, FSK, LR‑FHSS, BLE, ZigBee LoRa, (G)FSK, LR-FHSS LoRa, (G)FSK
SIGFOX PROTOCOL SUPPORT √ √ -
AES-128 ENCRYPTION ENGINE - √ √
SECURE KEY STORAGE - √ (NwkKey, AppKey, etc.) -
DEVICE IDENTIFIER MANAGEMENT - √ (DevEUI / JoinEUI handling) -
LORAWAN SECURITY COMPLIANCE √ (Complete process: storage, authentication) - (Basic encryption only)
APPLICATION SCENARIOS Global deployment, multi-band applications, asset tracking, audio communication Global deployment, multi-band applications, asset tracking, high-security scenarios Classic Sub-GHz LoRa communication
Product Specifications
VERSION CORE2021-HF CORE2021-LF
RF SPECIFICATIONS
RF CHIP LR2021
FREQUENCY RANGE HF: 850 ~ 930MHz LF: 410 ~ 510MHz
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
Application Example
Industrial Environment, Smart Home, And Data Acquisition...

Strong Communication Compatibility
The LR2021 can communicate with LR1121, SX126X, SX127X, and SX128X series, maintaining backward compatibility with existing LoRa products after upgrades, and provides higher power efficiency and longer transmission distance.
Dual Spread Spectrum Modulation For Complex Environments
The LR2021 integrates both LoRa Chirp Spread Spectrum and Long Range – Frequency Hopping Spread Spectrum technologies, supports Sub-GHz, 2.4 GHz ISM band, and 1.5 ~ 2.5 GHz licensed tri-band coverage, enabling both terrestrial IoT and satellite IoT communication requirements. It is suitable for applications in industrial, agricultural, smart city, and satellite IoT scenarios.
ISM Band
This Frequency Band Is Globally License-Free And Is Ideal For Short-Range, High-Speed Data Transmission
Pinout Definition

High-Quality Components
For Stable Performance Of Communication Module
Outline Dimensions

MODEL	CORE2021-XF	CORE1121-XF	CORE1262-XF
FREQUENCY SUPPORT	Sub-GHz (410 ~ 510 MHz or 850 ~ 930 MHz), 2.4 GHz ISM band, and 1.5 ~ 2.5 GHz licensed bands	Sub-GHz (410 ~ 510 MHz or 850 ~ 930 MHz)
MODULATION	LoRa, FLRC, FSK, LR‑FHSS, BLE, ZigBee	LoRa, (G)FSK, LR-FHSS	LoRa, (G)FSK
SIGFOX PROTOCOL SUPPORT	√	√	-
AES-128 ENCRYPTION ENGINE	-	√	√
SECURE KEY STORAGE	-	√ (NwkKey, AppKey, etc.)	-
DEVICE IDENTIFIER MANAGEMENT	-	√ (DevEUI / JoinEUI handling)	-
LORAWAN SECURITY COMPLIANCE	√ (Complete process: storage, authentication)	- (Basic encryption only)
APPLICATION SCENARIOS	Global deployment, multi-band applications, asset tracking, audio communication	Global deployment, multi-band applications, asset tracking, high-security scenarios	Classic Sub-GHz LoRa communication

VERSION	CORE2021-HF	CORE2021-LF
RF SPECIFICATIONS
RF CHIP	LR2021
FREQUENCY RANGE	HF: 850 ~ 930MHz	LF: 410 ~ 510MHz
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

[] Core2021-HF

[] Core2021-HF-M

[] Core2021-LF

[] Core2021-LF-M

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