LoRa spread spectrum SX1278 wireless serial port transparent transmission module 433M transceiver transmission free development 1W high power module
Semtech SX1278-based 433MHz LoRa wireless serial transparent transmission module is a high-power solution designed for long-distance low-power communication, supporting a transmission power of 1W (+30dBm) and capable of transmitting over a line of sight of more than 20 kilometers. The module adopts a transparent transmission mode and is directly connected to terminal devices through UART interface. It can achieve serial data transmission without complex protocol development, greatly simplifying the deployment of IoT nodes. Its core advantages include:
**Typical application scenarios * *:
1. Industrial automation: real-time feedback and remote control of production line equipment status
2. Smart Agriculture: Multi parameter Monitoring Network for Temperature, Humidity, and Light in Cross regional Farmland
3. Security monitoring: wireless interconnection between perimeter alarm devices and central control console
4. Energy Management: Remote Operation and Maintenance Monitoring of Distributed Photovoltaic Power Plants
5. Emergency communication: Temporary communication network in complex terrains such as mountainous/mining areas
**Technical Features * *:
-Dual mode modulation: LoRa spread spectrum (-148dBm sensitivity) and GFSK optional
-Adaptive Link: Supports Automatic Power Adjustment (ADR) and Dynamic Rate Optimization
-Anti interference design: preamble detection algorithm and channel quality indicator (CQI)
-Low power architecture: Sleep current<0.1 μ A, supports wake-up timer and deep sleep mode
-Hardware interface: UART/SPI dual interface, compatible with TTL/RS485 level conversion
**Key points of module design * *:
1. High power PA design requires coordination with heat dissipation structure and power filtering
2. External high gain antenna (recommended 1/4 wavelength spiral antenna) can increase gain by 3-5 dBm
3. Supports multi-channel concurrency, with a maximum of 32 logical channels
4. Compliant with global mainstream frequency band regulations (such as China SRRC and EU CE certification)
This module implements parameter configuration through the AT instruction set and supports functions such as over the air wake-up and data encryption (AES-128), making it suitable for wireless sensor networks that require rapid deployment. In the future, driven by 5G RedCap technology, the high-power LoRa module will continue to evolve in the wide area IoT and edge computing scenarios.
