This module is designed for long-range, ultra-low-power communication, supporting ISM Sub-GHz (150–960 MHz), global 2.4 GHz, and 1.9–2.1 GHz satellite frequency bands. It is suitable for both terrestrial and satellite communication applications.
Core1121 supports LoRa®, (G)FSK, and LR-FHSS modulation, making it compatible with both LoRaWAN® networks and private protocols, ideal for LPWAN applications. The LR1121 integrates a low-power multi-band RF front-end, providing exceptional flexibility in frequency configuration.
Key Features
- Powered by Semtech LR1121 (3rd generation low-power LoRa transceiver)
- Supports Sub-GHz (150–960 MHz), S-band (1.9–2.1 GHz), and 2.4 GHz ISM band
- Enables LPWAN connectivity via LoRa / LoRaWAN gateways to the cloud
- Supports LoRa, (G)FSK, and LR-FHSS modulation
- Compatible with SX126x / SX127x frequency bands for easy product upgrades
- SPI interface, compatible with mainstream MCU platforms for easy integration
- Built-in AES-128 encryption for enhanced data security
- Onboard TCXO ensures stable frequency performance across temperature ranges
- Suitable for IoT applications such as industrial telemetry, smart home, environmental monitoring, and remote data acquisition
- Comprehensive documentation and example code available (ESP32, STM32, Raspberry Pi, Raspberry Pi Pico, etc.)
Key Electrical Specifications
- Operating Voltage: 3.3V (Max 3.8V)
- Transmit Power:
- Sub-GHz: up to +22 dBm (115 mA)
- 2.4 GHz: up to +13 dBm (25 mA)
- Receiver Sensitivity:
- Sub-GHz: down to -127 dBm (125 kHz bandwidth)
- 2.4 GHz: high-sensitivity reception
- Power Consumption (Typical):
- RX mode: 9.2 mA (Sub-GHz) / 8.1 mA (2.4 GHz)
- Sleep mode: 1.35 µA (ultra-low power)
- Operating Temperature: -40°C ~ +85°C (industrial grade)
- Dimensions: 19.0 × 22.0 mm
Key Advantages
- Dual-band integration: Supports both Sub-GHz (long-range) and 2.4 GHz (high-speed/global use)
- Ultra-low power: Sleep current as low as 1.35 µA, ideal for battery-powered IoT devices
- High performance: Up to 22 dBm transmit power for stable long-range communication
- Enhanced security: Built-in AES-128 encryption
- Easy integration: SPI interface, compatible with SX126x/SX127x
- Industrial-grade reliability: TCXO, wide temperature range, and TVS protection
Typical Applications
- Industrial IoT (IIoT) and remote data acquisition
- Smart agriculture and environmental monitoring
- Smart buildings and security systems
- Smart metering (water, electricity, gas)
- Low-power sensor networks
- LoRaWAN® and private LPWAN networks
