LoRa dual-band wireless module 433M 2.4G RF communication LoRaWAN IoT transceiver integrated LR1121
LR1121 is a high-performance dual-band wireless module that supports **433MHz** and **2.4GHz** dual-band communications, is compatible with **LoRaWAN** standard protocols, and is designed for complex IoT environments. The module integrates Semtech SX1280 RF chip to achieve **ultra-long-distance transmission** (433MHz line-of-sight up to 10 kilometers) and **low-power operation** (receiving current 9.5mA, sleep current <1μA), suitable for smart cities, industrial IoT, smart agriculture and other scenarios.
**Core technology advantages**:
1. **Dual-band adaptive**: Automatically select the optimal frequency band, 433MHz has strong penetration, suitable for indoor/obstacle environments; 2.4GHz has high bandwidth and supports high-density networking.
2. **LoRaWAN certification**: Pre-integrated LoRaWAN protocol stack, compatible with global standard networks (such as AS923/CN470), simplifying the deployment process.
3. **Multi-protocol support**: Supports LoRa, FSK, and GFSK modulation at the same time, adapting to private protocols and traditional equipment upgrades.
4. **Anti-interference design**: Built-in AGC automatic gain control and RSSI calibration, bit error rate reduced by 50%, ensuring stability in complex electromagnetic environments.
**Typical application scenarios**:
1. **Smart city**: smart meter reading (water/electricity/gas meter), municipal facility status monitoring (manhole cover, trash can).
2. **Industrial Internet of Things**: remote monitoring of factory equipment, production line data collection (temperature and humidity, vibration sensor).
3. **Smart agriculture**: farmland soil moisture monitoring, livestock and poultry positioning and tracking, precision irrigation system.
4. **Logistics and warehousing**: cold chain temperature and humidity monitoring, real-time positioning of goods (port/warehouse).
5. **Smart home**: multi-device networking (door locks, lighting control), home environment monitoring (PM2.5/CO2).
**Selection and deployment suggestions**:
- **Scenario adaptation**: 433MHz is suitable for wide coverage scenarios such as rural and mountainous areas; 2.4GHz is suitable for urban buildings and dense deployment needs.
- **Power consumption optimization**: supports deep sleep and wake-up mechanisms, and the battery life can reach 5-8 years (depending on the frequency of data reporting).
- **Easy development**: provides UART/USB interface, AT instruction set and SDK development package to support rapid product iteration.
- **Compliance certification**: passed FCC/CE/TELEC certification to meet global market access requirements.
With dual-band flexibility, protocol compatibility and low power consumption, LR1121 has become an ideal choice to replace traditional single-band modules, especially for IoT projects that need to be deployed across scenarios. Its industrial-grade design (-40℃~+85℃ wide temperature) and high reliability can meet the needs of long-term stable operation in harsh environments.
