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The Next-Generation AutoPi Telematics Unit CM4

The new innovative and robust AutoPi TMU CM4 is the future of fleet telematics. It allows users for more possibilities and comes with a wealth of benefits.

Available for order now. Ships within 2-3 days. Telematics Unit Telematics Unit
Size perspective of the AutoPi device
New and improved

Harness the power of a Raspberry Pi Compute Module 4

The AutoPi TMU CM4 has new improved in several areas, such as better heat dissipation, new I/O button, sturdier design and casing. Furthermore, the Compute Module 4 boosts the raw potential of your solutions, and has new and improved connecters.

Faster CPU and more RAM

Extensive security integrated circuit(IC)

Capable of upgrading to 8GB RAM

The next-generation TMU

Unique features
available in the CM4

Our hardware is built to be a one-box-solution, centralizing data from assets installed in the vehicle, providing freedom to customize their solution as they see need.

Ethernet- and Dual USB ports
Button input for interaction with device
EU/US designed parts only, with production in EU
Upgraded Smart Power Manager to allow better perseveration of auxiliary battery
Ethernet- and Dual USB ports
Button input for interaction with device
EU/US designed parts only, with production in EU
Upgraded Smart Power Manager to allow better perseveration of auxiliary battery
The AutoPi CM4 device
Bluetooth upgraded to 5.0
Upgradable eMMC hard drive for fail safe IoT-solutions
40-pin header available for in-case extentions
Twice as fast boot-up and shut down time
Bluetooth upgraded to 5.0
Upgradable eMMC hard drive for fail safe IoT-solutions
40-pin header available for in-case extentions
Twice as fast boot- and shut down time
Size of the AutoPi Device
Key Features

Outstanding core features of CM4

Our solutions, both hardware and software, always focus on scalability and there are no projects too small or big for us to handle.

Upgraded automotive interface

The device comes with a 2x CAN interface and can be further expanded with additional CAN interfaces. Support for Diagnostics over IP (DoIP).


AutoPi Core is based on a full LINUX OS (Raspberry Pi OS), with endless possibilities for extensions and integrations. Well proven and tested OS, with high endurance.

Open source-software

The device runs on an open source-software, allowing users to build custom code on top of that. All drivers and implementations in AutoPi Core is availble from our GitHub repository.

Computing power

Broadcom BCM2711 Quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz provides incredible speed and functionality. 1GB LPDDR4 RAM and an integrated GPU. Upgradable to even more memory.

Image of AutoPi CM4 Order

4G/LTE Global Coverage

Integrated modem supporting global 4G/LTE bands,
enabling worldwide coverage in one single device.

Built in 2x SocketCAN interface

8x increased automotive bandwidth and speed with dual SocketCAN,
in comparison with the classic CAN.

OEM integrated unit or aftermarket add-on

Utilize the AutoPi TMU CM4 as a factory integrated OEM device,
or as an aftermarket add-on installation.

Integrated power-safe functionality

Fully proven and experienced power fail-safe functionality,
protecting against loss of critial data and increasing business productivity.

Extendable to almost any usage

Allow extension to countless, business and personal, use cases.
Additionally, add external sensors to further boost the capabilities.

Upgradable CPU/RAM

Upgrade the device to a faster processor,
get up to 8GB RAM and 32GB of storage.

Automotive certified (CE/FCC)

We are entirely CE & FCC certified for automotive standards.

Integrated security element

Secure and encrypt your data. Keep the data and applications
safe from other applications running on the same device.

AutoPi CM4 device in car 1
AutoPi CM4 device in car 2
AutoPi CM4 device in car 3
AutoPi CM4 device in car 4
Easier access to all features

Upgraded expansion

We’ve combined all the previous shields into one entirely original shield.
The ability to extend the AutoPi TMU with various components of sensing technology, can increase the effectivity of your business.

The rear includes:

• Dual USB & Ethernet

The side includes:

• Simcard, Micro-USB, Mini-HDMI slot

Upgradable to match your requirements

More processing power, more memory

Processor: Broadcom BCM2711 quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
Memory: 1GB, 2GB, 4GB or 8GB LPDDR4 (depending on variant)
Merged into the CM4

Innovative hardware components

Base your solution on top of one of the strongest commercial minicomputers available.
— “We do not believe in one-size-fits-all on any level, but in the ability to adapt and accommodate”.

Raspberry Pi™

An embedded Raspberry Pi delivers the computing power which enables the AutoPi Telematics Unit to do practically anything.

I/O Button input

The I/O button is a programmable, handheld input/output that allows automating actions by pushing a button on the AutoPi TMU CM4.

Security Element

Considerably cut the cost and complexity of managing the secure storage without significantly compromising security of the AutoPi TMU device.


The AutoPi is extensible through Bluetooth 5.0 with Bluetooth Low Energy (BLE). Connect a range of third-party products through this.


Embedded 3-axis accelerometer enables real-time measurement of all 3D horizontal and vertical G-forces applied to the car.

GPS Module & Native Real-time Clock

Real-time tracking of vehicle position, speed, and altitude, that incoporate A-GPS support. Additionally, a native Real-time clock has been added on the device.

USB Ports

Connect USB peripherals to the external USB ports. E.g., WiFi and Bluetooth devices, or an HD dashcam. Upgraded to the CM4 specs, made up of two ports and can be increased with a hub.

4G/3G Modem & WiFi

Future-proof design allows easy replacement of the network module with other expansion boards supporting standard Mini PCI-Express socket. Additional connection options are available through built-in 2.4GHz and 5GHz IEEE 802.11.b/g/n/ac wireless LAN.


The AutoPi TMU CM4 comes with an integrated 40 pin header (1.27mm pitch). It is possible to use the header to design HAT (Hardware Attached on Top) boards that greatly extends the functionality of the device.

OBD Chipset

Advanced on-board OBD-II chip that supports communication with all OBD-II compliant vehicles.


Plug in a touchscreen or any other display device through the supplied HDMI port. An essential feature when building an in-car computer or entertainment system.

Voice Speaker

Playback of voice notifications based on real-time data from GPS, accelerometer, car diagnostics or any other device attached.

Something unclear?

Frequently asked questions

The AutoPi TMU CM4 device enhances fleet telematics by offering advanced features such as a global modem for seamless connectivity, remote wake-up capabilities for efficient control, real-time data transmission or local storage options, and an open-source OS for maximum customization

These features enable businesses to optimize their fleet management, improve efficiency, and drive growth.

The AutoPi TMU CM4 provides numerous benefits for fleet telematics, including a global modem for seamless connectivity and reliable tracking, and remote wake-up capabilities for on-demand monitoring and control. These features help businesses maintain real-time visibility and control over their fleet operations, regardless of their vehicles' location.

Additionally, the open-source OS and flexible archutecture of the TMU CM4 facilitate seamless integration with other software and tools, allowing businesses to build comprehensive fleet management solutions tailored to their specific needs.

Yes, businesses can choose between real-time data transmission and local storage on the AutoPi TMU CM4 for their fleet telematics. This flexibility allows businesses to tailor their data management approach to their specific needs, ensuring the most efficient and cost-effective solution for their operations.

The open-source in the TMU CM4 enhances customization and integration options for fleet telematics by allowing businesses to modify and extend the system according to their unique requirements. The open-source nature of the OS facilitates seamless integration with other software and tools, enabling businesses to build comprehensive, end-to-end fleet management solution tailored to their specific needs.

The AutoPi TMU CM4 ensures the security and privacy of fleet telematics data for businesses by implementing robust security measures, such as encrypted data transmission, secure local storage, and regular software updates. These measures safeguard sensitive information and help businesses maintain compliance with data protection regulations while managing their fleet.

The AutoPi TMU CM4 supports scalability and adaptability in fleet telematics by offering a flexible and modular design. As a business grows and its fleet expands, additional TMU-CM4 devices can be easily integrated into the existing system. The open-source OS allows for seamless compatibility with other software and tools, ensuring that the fleet telematics solution remains adaptable to the evolving needs of a growing business.


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