[RS485-LS] RS485 to LoRaWAN Converter

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    The Dragino RS485-LS is a  UART to LoRaWAN Converter for Internet of Things solutions. Users can connect the UART sensor to the RS485-LS converter, and configure RS485-LB/LS to periodically read sensor data and upload via the LoRaWAN network to the IoT server.

    RS485-LS can interface to the RS485 sensor, 3.3v/5v UART sensor, or interrupt sensor. RS485-LS provides a 3.3v output and a 5v output to power external sensors. Both output voltages are controllable to minimize the total system power consumption.

    RS485-LS is IP67 waterproof and powered by solar-powered + li-ion battery it is designed for long-term use for several years.

    RS485-LS runs standard LoRaWAN 1.0.3 in Class A. It can reach a long transfer range and is easy to integrate with a compatible gateway and IoT server.

    For data uplink, RS485-LS sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LS will process these returns data according to user-defined rules to get the final payload and upload it to the LoRaWAN server.

    For data downlink, RS485-LS runs in LoRaWAN Class A. When there are downlink commands from the LoRaWAN server, RS485-LS will forward the commands from the LoRaWAN server to RS485 devices.

    RS485-LS Supports BLE configure and wireless OTA update which makes users easy to use.

    Each RS485-LS pre-load with a set of unique keys for LoRaWAN registration, register these keys to LoRaWAN server and it will auto connect after power on.


    • LoRaWAN 1.0.3 Class A
    • Frequency Bands:IN865 Mhz
    • Ultra-low power consumption
    • Support multiply RS485 devices by flexible rules
    • Support Modbus protocol
    • Support Interrupt uplink
    • Supports connecting a UART sensors with 3.3V or 5V
    • Support Bluetooth v5.1 and LoRaWAN remote configure
    • Support wireless OTA update firmware
    • AT Commands to change parameters
    • Uplink on periodically
    • Downlink to change configure
    • Solar panel + 3000mAh Li-on battery 


    • Smart Buildings & Home Automation
    • Logistics and Supply Chain Management
    • Smart Metering
    • Smart Agriculture
    • Smart Cities
    • Smart Factory


    Common DC Characteristics:

    • Supply Voltage: Built-in Battery , 2.5v ~ 3.6v
    • Operating Temperature: -40 ~ 85°C

    I/O Interface:

    • Battery controllable output (2.6v ~ 3.6v depends on battery)
    • +5v controllable output
    • 1 x RS485 Interface
    • 1 x UART Interface , 3.3v or 5v
    • 1 x Interrupt or Digital IN/OUT pins
    • 1 x I2C Interface
    • 1 x one wire interface

    LoRa Spec:

    • Frequency Range,  Band 1 (HF): 862 ~ 1020 Mhz
    • Max +22 dBm constant RF output vs.
    • RX sensitivity: down to -139 dBm.
    • Excellent blocking immunity

    Power Consumption:

    • Sleep Mode: 5uA @ 3.3v
    • LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm

    Package Includes:

    • 1 xRS485-LS UART to LoRaWAN Converter

    Dimensions and Weight:

    • Device Size: 9.7 x 6.5 x 4.7 cm
    • Device Weight: 150g
    • Package Size / pcs : 14.0 x 8x 5 cm
    • Weight / pcs : 180g