Open Vehicle Monitoring System (OVMS) WiFi/4G (SIM & ANT included)

Open Vehicle Monitoring System (OVMS) WiFi/4G (SIM & ANT included)

£227.99 (Inc. VAT)
£189.99 (Ex. VAT)
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Description

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The Open Vehicle Monitoring System (OVMS) is an open-source vehicle monitoring and control platform featuring 4G and Wi-Fi connectivity. Built by a dedicated community of automotive enthusiasts and engineers, OVMS delivers deep telemetry insights into vehicle internals that OEM systems typically lock away.

While most modern vehicles include basic remote-control apps, they often suffer from regional lockouts, lack granular data insight, and compromise user privacy. OVMS fills this gap by giving you complete ownership of your data, while also allowing you to retrofit these advanced smart capabilities onto older vehicles.

Key Capabilities

  • Live Telemetry & Alerts: Monitor critical vehicle metrics in real time including battery state of charge (SoC), individual cell voltages, temperatures, tire pressures. Receive instant alerts for critical events like charge aborts, cell failures, or geofence breaches (theft protection).

  • Active Hardware Control: Depending on vehicle integration, take control of charging schedules, climate control pre-conditioning, tuning parameters, and more.

  • Unified Fleet Management: Track real-time vehicle locations alongside real-time vitals. Fleet managers can remotely diagnose faults, automate pre-heating for clients, or implement active control measures to prevent vehicle abuse. The fully scriptable architecture ensures seamless integration with custom access and backend control systems.

Developer & Diagnostic Toolkit

OVMS serves as a robust mobile test bench for engineers and reverse-engineers, featuring:

  • Advanced CAN Tools: Three built-in CAN buses (expandable to four) with support for multiple logging formats, a configurable OBD2 translator, a DBC decoder, a CANopen client, and a comprehensive reverse-engineering toolkit.

  • Flexible Connectivity: Supports SSH terminal access, WebSocket streaming, and remote CAN frame streaming/injection over TCP.

  • Extensible Architecture: Fully customizable module firmware and web frontends via a powerful plugin and scripting framework.

Hardware & Ecosystem

The core of the system is a compact, vehicle-powered hardware module that connects directly to the standard OBD2 port.

  • The Hardware (v3.3): The standard kit includes an integrated 4G cellular modem, GPS tracking, and an SD card slot for local data logging. The hardware is fully FCC and CE certified.

  • The Ecosystem: Access your vehicle via the built-in responsive Web App or through native iOS and Android mobile apps. For smart home and industrial automation, OVMS natively integrates with brokers via MQTT, alongside supporting traditional server-side data logging.

Features

  • Real time EV telematics
  • OBD2 connection
  • WiFi / 4G IoT EU SIM (included) 
  • Android / iOS app
  • Fast and responsive
  • Remote Climate Control
  • Charging status notifications
  • Developer friendly API
  • Open-source ♥
  • Android / iOS App 
  • Home Assistant Integration (HACS)

Metrics

  • State of charge (SoC)
  • Range
  • Charging speed
  • GPS location
  • Odometer
  • Battery temperature
  • State of health
  • TPMS
  • 12V aux battery
  • Plus more...  

Service Cost

  • OVMS server logging: FREE 
  • Wi-Fi usage: FREE 
  • 4G usage: Either use included Hologram SIM, 1Mb/2Mb per month for normal usage, approx $2.30 per month. See Hologram.io pricing.
  • Or use your own SIM card, set APN settings accordingly 

Technical

  • V3.3 Hardware Revision
  • Connectivity: WiFi  / GSM (4G)  / GPS / Bluetooth 
  • 2G (GSM/GPRS/EDGE), 3G (UMTS/HSDPA/HSPA+), and 4G (LTS)
  • Modem: SIM57600G
  • Firmware update via OTA (WiFi / GSM), by Micro SD card, or over USB interface
  • Processor: ESP32 WROVER (160/240MHz, 16MB flash, 4MB SPI RAM, 520KB SRAM)
  • Processor core: Dual-core
  • Processor frequency: 160MHz/240MHz
  • Ports: Micro-USB, microSD, Internal Expansion Slot, GSM Antenna Port, GPS Antenna Port, DB9 Car Port, DB26 Expansion Port
  • Micro SD card logging
  • ODB2 output 
  • CAN bus no.: 3
  • Dimensions: 110mm x 80mm x 30mm

Frequency Bands

  • GMS/GPS/EDGE 850/900/1800/1900MHz, UMTS/HSDPA/HSPA+ B1/B2/B4/B5/B6/B8/B19, LTE-TDD B34/B38/B39/B40/B41, LTE-FDD B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28/B66

Certification

Vehicle Compatibility 

See specific vehicle: https://docs.openvehicles.com/

Included 

  • OVMS Hardware 
  • Hologram IO global SIM card (PRE INSTALLED INSIDE, small screwdriver required to replace)  
  • GSM Antenna (required for GSM)
  • GPS Antenna (required for GPS)

Choosing correct ODB2 cable

See specific vehicle: https://docs.openvehicles.com/

Note: an OBD2 extender or splitter can also be used if required, however ensure whatever extender/splitter is used has all the pins connected. 

Resources 

Support 

Licence

The project includes some third-party libraries and components to which their respective licences apply, see component sources for details.

The project itself is published under the MIT license:

Copyright (c) 2011-2020 Open Vehicles

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Warning

OVMS is a hobbyist project, it's designed by enthusiasts for enthusiasts. Installation and use of this module requires some technical knowledge.

The OVMS module is continuously powered by the car, even when the car is off. While the OVMS module uses extremely low power, it does continuously draw power from the car’s battery, so it will contribute to 12V power drains.

BY INSTALLING OR USING THE OVMS HARDWARE, FIRMWARE, OR SOFTWARE (THE "PRODUCT"), YOU EXPLICITLY AGREE TO THE FOLLOWING TERMS:

The Product is an open-source, community-driven development project. It is provided "AS-IS" without warranties of any kind, either express or implied, including but not limited to warranties of merchantability or fitness for a particular purpose  

Connecting third-party hardware to an OBD2 port, reverse-engineering vehicle networks, and modifying control parameters carry inherent risks. You acknowledge that use of the Product may cause vehicle malfunction, void manufacturer warranties, damage electronics, or result in property damage and personal injury. You install and use this Product entirely at your own risk. 

In no event shall the OVMS developers, contributors, manufacturers, or distributors be held liable for any direct, indirect, incidental, special, or consequential damages including vehicle damage, financial loss, personal injury, or data loss arising from the installation, use, or failure of the Product. You agree to indemnify and hold harmless the OVMS project contributors and affiliates from any claims, losses, liabilities, or expenses resulting from your use, scripting, configuration, or misuse of the Product.