Dragino RS485-LN RS485 / Modbus to LoRaWAN Interface
The Dragino RS485-LN is a low-power RS485 to LoRaWAN interface designed to connect Modbus and RS485-based sensors to LoRaWAN networks for scheduled data collection and remote monitoring. It operates on a configurable time schedule, waking at defined intervals to execute user-defined command sequences, process sensor responses, and transmit data records wirelessly.
Configurable Command Scheduling The RS485-LN supports up to 16 programmable command sets per cycle. Each command can include a configurable delay, allowing time for connected sensors to respond before moving to the next request. Users can define how response bytes are parsed and whether results are sent as individual uplinks or merged into a single data record.
Remote and Local Configuration Device configuration can be updated remotely using downlink commands to modify polling commands, delays, and response handling. For validation and advanced configuration, the RS485-LN also supports local setup via its programming port using AT commands. This interface can additionally be used for firmware upgrades through the built-in bootloader.
Always-On Class-C Operation By default, the RS485-LN operates in LoRaWAN Class-C mode, remaining continuously available to receive downlink commands. This allows on-demand polling, configuration changes, and control actions without waiting for scheduled uplinks, making it suitable for applications requiring near-real-time interaction.
Practical Field Deployment The device enclosure includes a terminal block for straightforward RS485 wiring, a reset button, and status LED indicators for device and network activity. The flanged enclosure supports wall mounting, with optional magnetic mounting hardware available for flexible installation.
Proven Telemetry2U Integration Telemetry2U has successfully deployed the RS485-LN with a range of third-party instruments, including In-Situ water quality sensors. A live demonstration shows an In-Situ AquaTROLL 500 connected via RS485-LN sending data in real time to the Telemetry2U IoT platform. You can read more about this integration here.
Additional deployments include integration with the In-Situ RDO-X dissolved oxygen probe, demonstrating compatibility with complex RS485-based sensing equipment.
Monitoring and Control via Telemetry2U Once connected to Telemetry2U, data can be viewed in real time and analysed historically through configurable dashboards. Users can set up email, SMS, and voice call alerts to be notified when measurements exceed defined thresholds. With its Class-C operation, the RS485-LN remains responsive at all times, supporting remote control and command execution from a smartphone or PC.
Applications Enabled with Telemetry2U
Calibration Free pH Monitoring
ANB’s solid-state pH sensors require no calibration and offer reliable, real-time pH monitoring for aquaculture, marine science, and water quality research with Telemetry2U.... Read More
Aqualabo Sensor Integration
Connect Aqualabo water quality sensors to Telemetry2U via NB‑IoT, LTE‑M, or LoRaWAN. Get real‑time readings, dashboards, alerts, and simple plug‑and‑play setup... Read More
In-Situ Water Quality Sensor Integration
Deploy In-Situ sensors with Telemetry2U to remotely monitor aquaculture water quality in real-time. Measure dissolved oxygen, pH, turbidity, conductivity, and more with ease... Read More
SeaBird CTD Sensor Integration
Integrate the Seabird SBE37 with Telemetry2U’s IoT platform for real-time oceanographic data. Ideal for long-term deployments in harsh marine environments... Read More
Combine you LoRaWAN Device with our IoT Platform
Combine your LoRaWAN devices with Telemetry2U's IoT platform to fully harness the power of the Internet of Things. Access all the features you need in one place, allowing you to monitor data and control devices from anywhere, anytime.
Refer to our Quick Guide to help get started - you'll be up an running in no time!
