Raspberry Pi Compute Module 4

Raspberry Pi Compute Module 4 (CM4) is a powerful and versatile single-board computer that offers high performance, a modular design

Raspberry Pi Compute Module 4
Raspberry Pi Compute Module 4



Raspberry Pi Compute Module 4 Overview


Raspberry Pi Compute Module 4 (CM4) is a high-performance single-board computer designed for industrial applications and embedded systems projects. It is capable of delivering powerful computing performance for applications that require advanced processing capabilities.
The CM4 is based on the same Broadcom BCM2711 quad-core Cortex-A72 processor as the Raspberry Pi 4, but it is smaller and more modular.
A compact form factor measuring only 55mm x 40mm is utilized by the CM4, which is designed to be used with custom carrier boards that provide additional interfaces and features.
The CM4 supports up to 8GB of LPDDR4 RAM, as well as built-in eMMC flash storage options ranging from 0GB to 32GB.
It also features a wide range of connectivity options, including Gigabit Ethernet, dual-band 802.11ac wireless, Bluetooth 5.0, and multiple USB ports.
The CM4 is suitable for use in various applications, including digital signage, industrial automation, robotics, and IoT devices, as it features a variety of interfaces and connectors. These interfaces include HDMI, DisplayPort, MIPI-DSI, MIPI-CSI, PCI Express, and more.  

Benefits of using the Compute Module 4


The Raspberry Pi Compute Module 4 (CM4) is a highly flexible and modular single-board computer that offers a range of benefits for users who require high-performance computing solutions. Here are some of the key benefits of using the CM4:

  • High Performance: The same Broadcom BCM2711 quad-core Cortex-A72 processor found in the Raspberry Pi 4 powers the CM4, giving users a high level of performance and the ability to handle demanding applications.
  • Wide Range of Connectivity Options: The CM4 comes with a range of connectivity options, including Gigabit Ethernet, dual-band 802.11ac wireless, Bluetooth 5.0, and multiple USB ports. This allows for easy integration into larger systems or networks, and seamless connectivity with other devices.
  • Modular Design: With its custom carrier board, the CM4 offers a highly modular design that allows users to tailor the system to their specific requirements and needs. This flexibility also makes it easy to upgrade or replace components as needed.
  • Built-in Storage Options: The CM4 includes built-in eMMC flash storage options that range from 0GB to 32GB, making it easy to store and access data.
  • Low Power Consumption: Less power is consumed by the CM4 than other high-performance single-board computers, as it is designed to be energy-efficient. This makes it ideal for low-power or battery-powered applications.
  • Built-in Storage Options: The CM4 includes built-in eMMC flash storage options that range from 0GB to 32GB, making it easy to store and access data.

 

Specifications for the Compute Module 4

  1. Processor
  2. Storage
  3. Memory
  4. Connectivity
  5. Operating System

 

Applications of the Compute Module 4


The Raspberry Pi Compute Module 4 (CM4) can be used in a wide range of applications that require a high-performance, flexible, and modular single-board computer solution. Some of the common applications of the CM4 include:

  • Industrial Automation: The CM4's capabilities for process control, monitoring, and data acquisition make it well-suited for use in industrial automation systems.
  • Digital Signage: The CM4 is capable of driving multiple displays. Making it useful for digital signage applications, such as advertising, wayfinding, and other information displays.
  • Robotics: The CM4 is suitable for use in robotics applications. The CM4 enables the control and management of robot movements, sensors, and other devices.
  • IoT Devices: The CM4 is an excellent choice for developing IoT devices. As it provides a high level of performance and a wide range of connectivity options.
  • Media Players: Building media players is made possible using the CM4, which can play high-definition video and audio content. Making it suitable for use in home entertainment systems and other similar applications.
  • Edge Computing: Edge computing applications can utilize the CM4, which is capable of processing data locally and reducing the load on cloud-based systems.
  • Embedded Systems: The CM4 finds application in embedded systems. The CM4 can be integrated into various devices and systems, including smart appliances, medical devices, and others.

 

Options for Storage on the Compute Module 4


The Raspberry pi Compute Module 4 provides users with a range of storage options, including eMMC, microSD, NVMe over USB 3, and native NVMe. While SSDs are fast for sequential writes.
The native NVMe performance of the Pi more than doubles random 4K performance over USB 3 drives. At present, it is not possible to use NVMe drives as boot volumes on the Compute Module 4.
For upgraded video cards, most have no Linux drivers, or if they do, they are only available for x86. The Pi uses an ARM processor, so x86 drivers would not work. Only one PCI video card is hardware-compatible with the Compute Module 4. But the graphics chip has Linux drivers only for x86.
There are several other adapters available for PCI. Including SATA adapters for hard drives and SSDs, sound cards, network adapters, and even old parallel port adapters. The critical factor to consider is whether the card has Linux support.  

Networking on the Compute Module 4


The raspberry pi Compute Module 4 now enables users to use an external antenna for Wi-Fi connectivity when it is enclosed in a metal box or Faraday cage. Thanks to the inclusion of a UFL antenna connector. This is the first time a Raspberry Pi has provided this option. The onboard antenna design is great for situations where there is no metal enclosure. The CM4 can deliver up to 80 megabits on home networks in wireless mode. Which is a substantial improvement over older compute modules that lack wireless connectivity.
Moreover, the CM4 is comparable to the standard Pi 4 and surpasses the capabilities of older compute modules. This makes it an excellent option for users who require high performance, flexibility, and modularity in a single-board computer solution.  

Pros And Cons Of The Compute Module 4

Pros:

  • High Performance: The CM4 is based on a powerful quad-core Cortex-A72 processor and offers up to 8GB of LPDDR4 RAM. Making it capable of handling demanding applications.
  • Modular Design: The modular design of the CM4 allows for the use of custom carrier boards. Allowing for easy customization and tailoring of the system to specific needs and requirements.
  • Wide Range of Connectivity Options: The CM4 features a wide range of connectivity options, including Gigabit Ethernet, dual-band 802.11ac wireless, Bluetooth 5.0, and multiple USB ports. Making it easy to integrate into a wide range of systems and networks.
  • Built-in Storage Options: The CM4 comes with built-in eMMC flash storage options ranging from 0GB to 32GB. Making it easy to store and access data.
  • Small Form Factor: The CM4 is compact and measures just 55mm x 40mm, making it easy to integrate into smaller systems and applications.
  • The CM4 is an energy-efficient design, which makes it an excellent option for low-power or battery-powered applications.

Cons:

  • The CM4 has relatively limited graphics performance, even though it is capable of handling demanding applications. This limitation may make it unsuitable for applications that require high-end graphics.
  • Using the CM4 effectively requires a custom carrier board. Which can add to the overall cost and complexity of a project..
  • Although the CM4 supports various operating systems. Its limited compatibility with some software can restrict the range of applications that can be utilized with the system.
  • Limited I/O Pins: The CM4 has a limited number of I/O pins. Which can limit its use in some applications that require a large number of sensors or other devices.