Monitor One – A customizable cellular IoT gateway for industrial equipment monitoring

Particle’s Monitor One Developer Edition is a customizable cellular IoT gateway for monitoring industrial equipment packaged in an IP67 rugged enclosure with reference firmware, and suitable for rapid prototyping with support for a range of I/Os and sensors, and even a prototyping area for to solder your own circuitry.

Like the company’s earlier Tracker One asset tracker, the Monitor One is based on the Tracker SoM with a Nordic Semi nRF52840 Arm Cortex-M4 wireless SoC for Bluetooth connectivity, a Quectel LTE Cat M1 (North America) or Cat 1 with 3G and 2G fallback (EMEA), u-blox Neo-M8U GNSS module, and an ESP32 for WiFi location support. The new customizable cellular IoT gateway still integrates with the Particle IoT PaaS (Platform as a Service), and the company also provides developer tools.

Monitor One customizable IoT gateway

The Monitor One Developer Edition is comprised of the following items:

  • Monitor One base model fitted with a Particle Tracker SoM
  • Expansion cards
    • Particle I/O card with RS-485 interfaces, support for CAN Bus and Modbus protocols, digital inputs (4-20mA, 0-10V, 12-24V I/O), and dry contact relay outputs
    • Prototype Card – A perf board for custom circuits
  • Cables – 4-pin M12 cable, 8-pin M12 cable, USB cable
  • Debugging
    • Micro USB port for debugging/programming nRF52840 MCU
    • SWD connector for nRF52840
  • Misc
    • Temperature sensors for circuit board temperature and battery pack temperature
    • 3x RGB LEDs for system status, GNSS status, and a user-defined status indicator
    • Internal Reset and Mode buttons
    • External user-programmable button
  • Power Supply
    • 6-30V DC input via DC jack
    • 24V power supply provided
    • 4-cell 18650 LiPo battery pack
  • IP67-rated, waterproof enclosure for rugged environments and support walls, rails, poles, etc… mounting
  • Certifications – Expected in September or October 2023
Monitor One Block Diagram
Block Diagram

The company has published an online datasheet with plenty of information about the hardware. We have less information about the firmware and software, but I understand it will support the Particle Tracking System for asset tracking and remote monitoring which developers can use for free with up to 100K data operations per month and support for up to 100 devices. The Tracker SoM should be running the Device OS firmware as found in other Particle boards and modules, and the code can be modified in the Workbench IDE.

Particle Monitor Service
Particle Monitor Services

It looks like the Monitor One Developer Edition will be sold with a transparent plastic IP67 enclosure, but Particle will also offer an opaque enclosure such as the one below, branded as per the customer’s requirement, for volume production. The company also partnered with JARDUM to help provide completely customized products based on the Tracker SoM / Monitor ONE prototype developed by the customer.

Customizable cellular IoT gateway IP67 enclosure

The Monitor One Developer Kit is available for pre-order now for $289 for the US and EU versions, and shipping is scheduled to start in October once all certifications have been obtained.

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