Core1121 LF/HF Dual-Band LoRa Module, Based on Low-Power LR1121 Transceiver, Suitable For Sub-GHz And 2.4GHz Frequency Bands
NB-IoT / Cat-M / LoRa / LoRaWAN

Core1121 LF/HF Dual-Band LoRa Module, Based on Low-Power LR1121 Transceiver, Suitable For Sub-GHz And 2.4GHz Frequency Bands

$9.99 - $10.99
Version Options
Core1121-HFCore1121-LF
Pinheader Options
Standard Ver.with pre-soldered header
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Core1121 LF/HF Dual-Band LoRa Module, Based on Low-Power LR1121 Transceiver, Suitable For Sub-GHz And 2.4GHz Frequency Bands
Core1121 Dual-Band LoRa Module

Suitable For Sub-GHz And 2.4GHz Frequency Bands


Version Options

HF version, 850 ~ 930MHz frequency

Applicable to Europe, North America and Oceania

Core1121-HF
Standard version

Core1121-HF-M
with pre-soldered header


LF version, 410 ~ 510MHz frequency

Applicable to Europe, Asia

Core1121-LF
Standard version

Core1121-LF-M
with pre-soldered header

* Please select the frequency version according to the local radio regulations before placing an order.


Features
  • Based on the third-generation low-power LoRa transceiver LR1121
  • Supports Sub-GHz (150MHz ~ 960MHz), S-band (1.9GHz ~ 2.1GHz), and 2.4GHz ISM frequency bands
  • Connects to the cloud via LoRa or LoRaWAN protocol through a gateway, enabling low-power wide-area networking (LPWAN)
  • Supports LoRa, (G)FSK, and LR-FHSS modulation schemes, compatible with SX126X/SX127X series for easy product upgrades
  • SPI communication interface, supports mainstream MCU platforms for seamless integration and migration
  • Integrates AES-128 encryption engine to enhance data security
  • Onboard TCXO crystal oscillator ensures frequency stability under extreme temperature conditions
  • 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 / STM32 / Raspberry Pi Pico)

Product Comparison
Model Core1121-XF Core1262-XF
Frequency Support Sub-GHz (150MHz ~ 960 MHz), S-band (1.9GHz ~ 2.1GHz), 2.4GHz Sub-GHz (150MHz ~ 960MHz)
Modulation 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, high-security scenarios Classic Sub-GHz LoRa communication
Product Specifications
Version Core1121-HF Core1121-LF
RF Specifications
RF chip LR1121
Frequency range HF: 850 ~ 930MHz LF: 410 ~ 510MHz
1900MHz ~ 2100MHz, 2400MHz ~ 2500MHz
Modulation LoRa / (G)FSK / LR-FHSS
Data rate LoRa: 0.091Kbps ~ 62.5Kbps
(G)FSK: 0.6Kbps ~ 300Kbps
Emit power -9dBm ~ 22dBm@Sub-GHz band
-18dBm ~ 13dBm@ISM band
Receiver sensitivity -127dBm@Sub-GHz band, SF=7, CR4_5, BWL=125KHz
-111dBm@ISM band, SF=7, CR4_5, BWL=800KHz
Typical Range Sub-GHz band: 5KM
ISM band: 2KM
Spreadind factor SF5 ~ SF12
Electrical Characteristics
Operating voltage 3.3V (maximum 3.8V)
Logic Voltage 3.3V (A level converter is required for other logic levels)
Module power consumption Sub-GHz band:
emitting current: 115mA@22dBm
receiving current: 9.2mA@125KHz
ISM band:
emitting current: 25mA@13dBm
receiving current: 8.1mA@125KHz
Hardware Specifications
Communication bus SPI
Crystal Oscillator 32MHz TCXO
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 LR1121 can communicate with SX126X, SX127X, and SX128X series, which is still compatible with previous LoRa products after upgrading, and provides higher power efficiency and longer transmission distance.

Dual Spread Spectrum Modulation for Complex Environments

The LR1121 supports both LoRa Chirp Spread Spectrum (CSS) and Frequency Hopping Spread Spectrum (FHSS) technologies, with modulation coverage across Sub-GHz, S-band, and 2.4GHz ISM frequency bands. 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

Original chip
LR1121

Industrial grade crystal oscillator
-40 ~ 85℃

Two connection methods for Antenna
IPEX / Castellated hole

Professional shield
Anti-interference & ESD protection



Temperature Compensated Crystal Oscillator

Ensures the long time working of the module without frequency shift in the high and low temperature environments of industry


Outline Dimensions
Resources & Services

* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.


LoRa Module Selection Guide
Product Model RF Specifications Electrical Characteristics
Frequency band Modulation Emit power Spreadind factor Operating voltage power consumption

Core2021-LF		 410 ~ 510MHz LoRa, FLRC, FSK, BLE, ZigBee 22dBm SF5 ~ SF12 3.3V emitting current: 105mA@22dBm
receiving current: 5.8mA@125kHz
1500 ~ 2500MHz 12dBm SF5 ~ SF12 3.3V emitting current: 23mA@12dBm
receiving current: 6.4mA@125kHz

Core2021-HF		 850 ~ 930MHz 22dBm SF5 ~ SF12 3.3V emitting current: 105mA@22dBm
receiving current: 5.8mA@125kHz
1500 ~ 2500MHz 12dBm SF5 ~ SF12 3.3V emitting current: 23mA@12dBm
receiving current: 6.4mA@125kHz

Core1121-LF		 410 ~ 510MHz LoRa, GFSK, LR-FHSS 22dBm SF5 ~ SF12 3.3V emitting current: 115mA@22dBm
receiving current: 9.2mA@125KHz
1500 ~ 2500MHz 13dBm SF5 ~ SF12 3.3V emitting current: 25mA@13dBm
receiving current: 8.1mA@125KHz

Core1121-HF		 850 ~ 930MHz 22dBm SF5 ~ SF12 3.3V emitting current: 115mA@22dBm
receiving current: 9.2mA@125KHz
1500 ~ 2500MHz 13dBm SF5 ~ SF12 3.3V emitting current: 25mA@13dBm
receiving current: 8.1mA@125KHz

Core1262-LF		 410 ~ 510MHz LoRa / (G)FSK 22dBm SF5 ~ SF12 3.3V emitting current: 107mA@22dBm
receiving current: 5.3mA@125KHz

Core1262-HF		 850 ~ 930MHz 22dBm SF5 ~ SF12 3.3V emitting current: 45mA@14dBm
receiving current: 5.3mA@125KHz

Quick Overview

Core1121-HF

  1. Core1121-HF x1
  2. IPEX4 to SMA cable x1
  3. 2DB SMA antenna x1
  4. 2.4G antenna x1
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Core1121-HF-M

  1. Core1121-HF with pre-soldered header x1
  2. IPEX4 to SMA cable x1
  3. 2DB SMA antenna x1
  4. 2.4G antenna x1
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Core1121-LF

  1. Core1121-LF x1
  2. IPEX4 to SMA cable x1
  3. 2DB SMA antenna x1
  4. 2.4G antenna x1
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Core1121-LF-M

  1. Core1121-LF with pre-soldered header x1
  2. IPEX4 to SMA cable x1
  3. 2DB SMA antenna x1
  4. 2.4G antenna x1
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