The RS485‑to‑LoRaWAN Converter, powered by the high-performance SX1276 LoRa chip, provides a seamless bridge between RS485 industrial signals and long‑range LoRaWAN wireless networks. This robust device enables efficient data transmission to a LoRaWAN gateway over vast distances, making it the perfect solution for Industrial IoT (IIoT) integration, remote sensor monitoring, and low‑power wide-area network (LPWAN) applications.
As Industrial IoT (IIoT) continues to evolve, LoRa technology has emerged as a cornerstone for smart cities, smart buildings, and industrial automation. For terminal devices such as Arduino or Raspberry Pi that utilize the RS485 interface, this RS485-to-LoRaWAN converter acts as a critical communication bridge.
The device functions as a smart bridge: For Uplink: It sends user-defined commands to RS485 sensors, collects the response data, and processes it into a payload based on custom rules for the LoRaWAN server. For Downlink: Operating in Class C, the converter receives commands from the server and forwards them directly to the RS485 field devices.
Features
- Industrial Master Control: Equipped with the STM32L072CZT6 MCU for stable processing.
- Advanced Wireless Connectivity: Integrated SX1276 LoRa chip for superior range.
- Protocol Compatibility: Fully supports LoRaWAN Class A & Class C protocols.
- Universal RS485 Integration: Flexible rule-based system to connect and poll various RS485 Modbus devices.
- Customizable Configuration: Supports AT Commands for rapid parameter adjustment.
Technical Specifications
| Category | Specification |
|---|---|
| Hardware System | STM32L072CZT6 MCU SX1276 Wireless Chip |
| Power Consumption | Idle: 32 mA @ 12V 20 dB Transmit: 65 mA @ 12V |
| Interface | RS485 |
| Power Input | 7 ~ 24V DC |
| LoRa Spec – Frequency | Band 1 (HF): 862 ~ 1020 MHz Band 2 (LF): 410 ~ 528 MHz |
| Link Budget | 168 dB maximum |
| RF Output | +20 dBm – 100 mW constant |
| Bit Rate | Programmable up to 300 kbps |
| Sensitivity | Down to -148 dBm |
| Front End | Bullet-proof, IIP3 = -12.5 dBm |
| Immunity | Excellent blocking immunity |
| RX Current | 10.3 mA Register retention: 200 nA |
| Synthesizer | Fully integrated, resolution 61 Hz |
| PA Efficiency | +14 dBm high-efficiency PA |
| Modulation | FSK, GFSK, MSK, GMSK, LoRa™, OOK |
| Synchronizer | Built-in bit synchronizer for clock recovery |
| Detection | Preamble detection |
| RSSI Range | 127 dB Dynamic Range RSSI |
| Packet Engine | Up to 256 bytes with CRC |
| RF Sense & CAD | Automatic RF Sense and CAD with ultra-fast AFC |
Product Documents
Compliance & Logistics
| HS CODE | 8517709000 |
| US HS CODE | 8517790000 |
| EU HS CODE | 8517180000 |
| COO | CHINA |
Part List
| Item | Quantity |
|---|---|
| RS485-LN | 1 |
| DIN holders | 2 |
| LoRa Antenna | 1 |
| Program cable | 1 |