Raspberry Pi CM4 Dual ETH RS485 Base Board

The Raspberry Pi Compute Module 4 is a powerful new compact board that many Makers drool over. However, if you are lucky enough to own a CM4 then you’d quickly notice its distinct lack of interfaces in favour of the small design. Fortunately, plenty CM4 Base Boards are available to provide all the interfaces, ports, and connections you need for your Raspberry Pi project. Most extension boards focus on a few added interfaces for case-to-case solutions while remaining discrete, but the CM4 Dual ETH RS485 Base Board blows away all concern by integrating a slew of dual ports and multi-interfaces onto one large extension board.

The CM4 Dual ETH RS485 Base Board is named after two of its most notable features – 100M & 1000M Dual Ethernet ports and four isolated RS485 interfaces. You can connect your CM4 to the wider internet with the CM4 native gigabit RJ45 ethernet port and the board provides an additional USB expansion 100M ethernet port for added flair. If that and its four RS485 interfaces weren’t exciting enough, the large base board includes a complete bucket list of ports, interfaces and connectors over its 93.6x108.8mm surface. Plentiful peripherals allow Makers to experiment and use the varies Pi Accessories available to create new technology. This CM4 Dual ETH RS485 Base board has a slew of additions for your CM4. Among the more notable features on this extension board, you will find:

• Dual 2.0 USB-A ports
• Dual MIPI CSI-2 camera ports
• A built-in real-time clock (battery not included)
• A buzzer
• A HDMI port for 4K video output
• A 5V cooling fan interface
• Twelve total LED indicators

The CM4 Dual ETH RS485 Board is a great choice for extending your Raspberry Pi’s functionality to the extreme with all the multi-interfaces you can think of. Tinkering with IoT technology, smart home devices, and more ambitious projects will never feel limited again. Any variation of the Compute Module 4 is well-matched with the CM4 Dual ETH RS485 board, including the CM4 Lite which can use the provided MicroSD card slot for storage.

Please Note: The CM4 Dual ETH RS485 Base Board (B) is designed to perfectly fit any variation of the Raspberry Pi Compute Module 4, which is unfortunately not available in our stock at this time.

Typical Applications for CM4 Dual ETH RS485 Base Board (B):

The CM4 Dual ETH RS485 Base Board (B) is an extension board for the Raspberry Pi Compute Module 4. Makers utilise base boards like these to supply additional interfaces onto their Raspberry Pi projects, allowing them to tinker with greater functionality. This CM4 Dual ETH RS485 Base Board is a large extension board that offers dual camera ports and dual ethernet ports for your CM4 Pi.

Additional Resources:

• The Official Raspberry Pi Compute Module 4 Documentation Page holds all the information, documentation and guides you need to get started with the Raspberry Pi Compute Module 4.
• For a better look at the schematics, user guides, and more information, the Waveshare CM4 Dual ETH RS485 Base Board (B) Wiki Page is just one click away.

When it comes to producing unique electronics components and modules, there are very few brands that can provide the quality that Waveshare can. Based in the Futian District in Shenzhen, China, Waveshare are experts in developing electronics to a high standard of quality, which have been thoroughly tested to work seamlessly with corresponding development platforms and systems – such as the E-Ink HATs for Raspberry Pi’s.

What we love most about Waveshare is how they are dedicated to providing quality products, and have moved away from the typical “Made in China” stigma – cheap products with cheap parts and components. Instead, Waveshare understand the value of supplying quality products and building sustainable relationships with international resellers and distributors. They know that consistent quality will result in consistent business, and as such they always ensure strict quality control for each and every product that comes out of the manufacturing plant.

We are always excited to peruse through their vast catalogue of exciting new products to find unique modules, components or even entire development boards that are designed with quality in mind. Because we know that every cent that we spend with Waveshare will be well-spent, with each product that order adding real value to our own catalogue of products.