This 6-inch board turns a Raspberry Pi module right into a DIY router


Enlarge / Let your Pi do the work whereas the CM4 Router Board handles the connections.

In the event you’re intrigued by the prospect of constructing a DIY router, Seeed Studio has a board that is simply ready to place a Raspberry Pi Computing Module 4 (CM4) to work. Assuming, after all, that you’ll find the Pi module.

Seeed’s CM4 Router Board provides two full-speed gigabit community ports, two USB 2.0 ports, a microSD slot, an HDMI out, a GPIO interface for Raspberry Pi HAT add-ons, and a 0.91-inch OLED show to your Pi CM4. Having the CM4 on the system’s core provides you 32 totally different choices for RAM, storage, and wi-fi capabilities in your homebrew router. The Router Board comes with OpenWRT put in, but it surely might run Ubuntu, Raspberry OS, or some other Pi-friendly system.

Seeed notes that past DIY routers, the CM4 Router Board might additionally turn out to be a gateway, mini-NAS, wi-fi community bridge, or mini-server. You should purchase a Pi CM4 with wi-fi capabilities, however you will doubtless want (or want) a separate Wi-Fi setup linked to your DIY router.

Why not simply plug a USB-to-Ethernet adapter into the Pi you have already got? Seeed says its board’s RTL8111E controller chip “gives higher efficiency, decrease CPU utilization, and better stability for a very long time work [sic] in contrast with a USB community card.”

The CM4 Router Board needs to be accessible for round $55 quickly at each Seeed and Mouser Electronics, although the latter cites an 11-week lead time past its preliminary inventory.

These attempting to find a Raspberry Pi CM4 board may contemplate Ars commenter MightyPez’s recommendation to regulate Pi inventory monitor Rpilocator, which gives RSS feeds. You possibly can even arrange push notifications with Rpilocator’s official Python script.