Details 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 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 * Please select the frequency version according to the local radio regulations before placing an order. 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 Original chip LR2021 Industrial grade crystal oscillator -40 ~ 85℃ Two connection methods for Antenna IPEX4 / Castellated hole Professional shield Anti-interference & ESD protection Actual Distance test Outline Dimensions
