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In the world of marine technology, the Raspberry Pi has emerged as a popular choice for central marine computers, consolidating navigation and boat systems via NMEA 2000 networks. This article explores the use of Raspberry Pi 4 and 5 for NMEA 2000 integration, focusing on cost-effective HAT options like the CAN Bus HAT and MacArthur HAT.
Raspberry Pi 4 vs. Raspberry Pi 5 for NMEA 2000 Integration
Both Raspberry Pi 4 and 5 (with at least 4GB RAM) are suitable for acting as central marine computers. They run similar software stacks that can process and automate marine sensor data. Raspberry Pi 5 offers improved CPU performance and faster I/O, making sensor data processing and dashboard responsiveness better, especially when running more advanced marine automation or AI analytics. However, the Pi 4 is already capable for standard monitoring and control tasks.
Cost-effective HAT options for CAN Bus (NMEA 2000) interface
The CAN Bus HAT for Raspberry Pi is an affordable add-on that provides an integrated CAN controller with transceiver, enabling direct connection to the boat's NMEA 2000 network. The MacArthur HAT, while less commonly mentioned, is also used for CAN Bus interfacing. Both HATs require confirmation of compatibility with Raspberry Pi 4/5 and NMEA 2000 standards before choosing.
Alternative low-cost options include USB-CAN adapters or ESP32-based CAN transceivers integrated with NMEA 2000 Micro-C connectors. These can either be connected via USB or wirelessly, offering plug-and-play NMEA 2000 integration with direct Micro-C connectors and additional features like wireless bridging, logging, and smart sensor gateways.
Cost-effectiveness and ease of use
Using a CAN Bus HAT with Raspberry Pi tends to be more straightforward and cost-effective compared to more complex custom setups. For advanced usage or wireless options, ESP32 CAN Bus boards with integrated NMEA 2000 connectors are an excellent alternative or supplement to traditional HATs.
Purchase Options
- A Raspberry Pi case, SD card, and pre-assembled Raspberry Pi can be purchased at [https://www.our website/tienda/].
- The Amazon purchase link for the MacArthur HAT is [Link to Amazon]. The MacArthur HAT includes a 12V Power Module.
- The CAN Bus HAT costs under 12 euros, while the MacArthur HAT costs 60 euros. The AliExpress purchase link for the MacArthur HAT is [Link to AliExpress].
- Purchase links are provided for NMEA2000 cables, 5-pin M12 connectors, and both Raspberry Pi 4 and 5 models.
- A pre-printed Raspberry Pi (4 or 5) case for the MacArthur HAT can be purchased at [Link to pre-printed case].
Additional Information
- The video compares the Raspberry Pi 5 and 4 for use with NMEA 2000 networks.
- The article provides a schematic for building custom cables with UTP cables and connectors for both the MacArthur HAT and the CAN-BUS HAT.
- The video explains how to connect the NMEA 2000 network to a Raspberry Pi 5.
- The video demonstrates how to connect boat equipment to an NMEA 2000 network.
- The video shows how to configure an NMEA 2000 network and make cables for it.
- The project has a donation option at [Link to donation page].
- The video discusses integrating old and new equipment into the Raspberry Pi for data access.
- A free 3D model to print a Raspberry Pi (4 or 5) case for the MacArthur HAT is available at [/files2share/RPIMacArthurHATCase.zip].
- A Spanish distributor, Tiendatec, is mentioned for purchasing Raspberry Pi models.
- The project has a Patreon page.
The seamless integration of smart-home-devices is achievable through data-and-cloud-computing technology, especially when using gadgets like the Raspberry Pi for centralized marine computers that consolidate boat systems via NMEA 2000 networks. Cost-effective HAT options such as the CAN Bus HAT and MacArthur HAT, which enable direct connection to the boat's NMEA 2000 network, allow for both marine and home automation applications.
