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ThingsBoard Cloud

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Your data stays in the region you choose, for residency and compliance. No credit card required.

Rather run it yourself? Install on your own servers

DRN 500

  • Device
  • 326 installs
  • v1.0.2
  • Jun 15, 2026
  • MIT license
  • v4.2+

The Digicom DRN 500 is a compact industrial 4G CAT4 LTE router designed for remote control and monitoring of PLCs, microcontrollers, I/O devices, and energy meters. Featuring dual SIM failover, RS-485/RS-232, 2× Ethernet, digital I/O, MQTT, Modbus RTU/TCP support, USB Type-C, 9–32VDC input, and DIN-rail mounting, it is ideal for industrial automation, control panels, and IIoT deployments.

Hardware Type
  • Gateway
Connectivity
  • Ethernet
  • Wi-Fi
  • Modbus
  • LTE
  • MQTT
Use Cases
  • Smart Energy
  • Smart Metering
  • Environment Monitoring

The Digicom DRN 500 is a multifunction 4G router with built-in Modbus master and MQTT client. It reads registers from serial Modbus devices (like energy meters), publishes the data to an external MQTT broker, and ThingsBoard subscribes to that broker through an MQTT Integration.

This guide covers connecting a DRN 500 to ThingsBoard via an external MQTT broker, reading energy meter telemetry ( voltage, current, frequency, power), and visualizing it on a dashboard.

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Network Connectivity Schema

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Device Technical Documentation

Download datasheets and manuals for the DRN 500

DRN 500 Product page DRN 500 Datasheet

Add Your Device to the Community

Built or ship IoT hardware? Package your device as a ZIP and publish it to the IoT Hub so users can provision it in one click.