The Waveshare Core2021-HF Dual-Band LoRa Module is a high-performance wireless communication module built around the advanced LR2021 multi-band transceiver. Designed for low-power IoT and LPWAN applications, it supports Sub-GHz, 2.4GHz ISM, and 1.5–2.5GHz licensed frequency bands for flexible global deployment. The module supports multiple communication protocols including LoRa, FLRC, FSK, BLE, ZigBee, making it suitable for industrial telemetry, smart home automation, environmental monitoring, and remote sensing systems. Features: Based on the fourth-generation LoRa multi-band transceiver LR2021 Supports Sub-GHz 850 ~ 930 MHz 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, 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: Model: Core2021-HF Transceiver Chip: LR2021 Module Type: Dual-Band LoRa Module Frequency Support: Sub-GHz, 2.4GHz, 1.5 ~ 2.5GHz HF Frequency Range: 850 ~ 930 MHz Operating voltage: 3.3V (maximum 3.7V) Logic Voltage : 3.3V logic level (use level shifter for 5V MCUs) Communication Interface: SPI Supported Protocols: LoRa, FLRC, FSK, BLE, ZigBee Maximum Data Rate: Up to 2.6 Mbps Power : 22dBm (Max.) Platform Compatibility: ESP32, STM32, Arduino, Raspberry Pi, Raspberry Pi Pico Antenna Interface : IPEX-4 connector and castellated hole (additional operation required) Antenna Protection : TVS protection Transmit Power :-10 dBm to 22 dBm Sub-GHz Typical Range : Sub-GHz band: 5KM, ISM band: 2KM Dimensions : 19.00×22.00mm Weight: 0.011 kg Package Includes: 1 x Waveshare Core2021-HF Dual-Band LoRa Module 1 x IPEX4 to SMA cable 1 x 2dBi SMA antenna 1 x 2.4G antenna
Specifications
| RF Chip | LR2021 |
|---|
| Power | 22dBm (Max.) |
|---|
| Frequency Range | 850–930 MHz |
|---|
| Operating voltage | 3.3V (maximum 3.7V) |
|---|
| Communication Interface | SPI |
|---|
| Supported Modulation | LoRa, FLRC, FSK, BLE, ZigBee |
|---|
| Shipping Weight | 0.0120 kg |
|---|
| Shipping Dimensions | 25 × 21 × 7 cm |
|---|
