Compute Module 3+

Raspberry Pi Compute Module 3+ (CM3+) is an enhanced version of the Compute Module 3, designed for industrial, embedded, and IoT applications where performance, reliability, and customization are critical. Here are some key details:

Form Factor: The Compute Module 3+ retains the SODIMM-style form factor, making it compatible with existing Compute Module carrier boards. It measures approximately 67.6mm x 31mm.
Processor: It features a Broadcom BCM2837B0 quad-core 64-bit ARM Cortex-A53 processor, clocked at 1.2GHz, which is an improvement over the original CM3.
Memory: The CM3+ comes with options for 1GB or 2GB of LPDDR2 SDRAM, offering memory choices for different project needs.
Wireless Connectivity:
- Onboard 802.11n Wireless LAN (WLAN) with a built-in antenna for internet access.
- Bluetooth 4.2, providing better power management and compatibility with a wide range of wireless peripherals.
I/O Interfaces:
- Integrated:
  - One MIPI DSI display port for connecting displays.
  - One MIPI CSI camera port for camera modules.
- External:
  - When used with a carrier board:
    - 40-pin GPIO header, providing access to various I/O pins, including UART, I2C, SPI, PWM, and more.
    - USB 2.0 ports for connecting peripherals.
    - HDMI output for video display.
    - Ethernet port for network connectivity (via the carrier board).
    - Audio output.
    - SD card slot for storage.
Storage:
- Onboard eMMC storage options: 8GB, 16GB, or 32GB.
- Support for external microSD card storage.
Power: Requires a 5V power supply, with power management capabilities integrated into the carrier board.
Price: The Compute Module 3+ is priced higher than consumer Raspberry Pi models due to its industrial-grade components and intended use in professional applications.
Usage:
- Industrial Automation: Suitable for controlling machinery, robotics, and other automated systems where performance and reliability are key.
- Embedded Systems: Ideal for applications requiring performance, connectivity, and customization, like smart signage, digital kiosks, and edge computing.
- IoT: Perfect for IoT gateways, data collection, and processing nodes in large-scale deployments.
- Development: A platform for developers and companies looking to integrate Raspberry Pi technology into their products or projects.

Key Advantages:

Performance: The enhanced processor provides better performance than its predecessor, making it suitable for more complex tasks.
Wireless: Built-in Wi-Fi and Bluetooth simplify connectivity in embedded applications.
Scalability: Multiple memory and storage options cater to different project needs.
Customization: Designed for use with custom carrier boards, allowing for specific I/O configurations tailored to the application.
Reliability: Built with industrial-grade components, ensuring longevity and stability in harsh environments.

Limitations:

Cost: The advanced features and industrial-grade components make it more expensive than consumer Raspberry Pi models.
Learning Curve: Its use often requires knowledge of carrier board design or familiarity with existing carrier board options.
No Built-in USB Ports: Unlike consumer models, it relies on carrier boards for USB connectivity, which might require additional setup.

The Raspberry Pi Compute Module 3+ offers a step up in performance from the original Compute Module 3, providing more options for memory and storage while maintaining the flexibility and customization that the Compute Module series is known for. It’s designed for applications where space, power efficiency, and performance are crucial, making it an excellent choice for companies and developers looking to integrate Raspberry Pi technology into their industrial or professional projects.