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

Core2021-HF Standard version                                      Core2021-HF-M with pre-soldered header

LF version, 410 ~ 510MHz frequency

Applicable to Europe, Asia

Core2021-LF Standard version                                     Core2021-LF-M with pre-soldered header

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
• 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:

Resources and Services:

Documentations:

• WIKI

Package Includes:

• 1 x Core2021-HF
• 1x IPEX4 to SMA cable
• 1 x 2dBi SMA antenna
• 1 x 2.4G antenna

                    OR

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

                    OR

• 1 x Core2021-LF
• 1 x IPEX4 to SMA cable
• 1 x 2dBi SMA antenna
• 1 x 2.4G antenna

                    OR

• 1 x Core2021-LF with pre-soldered headers
• 1 x IPEX4 to SMA cable
• 1 x 2dBi SMA antenna
• 1 x 2.4G antenna