Switchberry Turns a Raspberry Pi CM4 into a Time-Focused Ethernet Switch
The Switchberry is a new device that transforms a Raspberry Pi Compute Module 4 into a specialized Ethernet switch. It supports synchronous Ethernet and the Precision Time Protocol, making it ideal for timing-sensitive network operations. The device is designed for experimentation and offers various connectivity options, including ports for external devices and GPS receivers.
- ▪The Switchberry is a five-port gigabit layer-two switch designed for the Raspberry Pi CM4.
- ▪It supports synchronous Ethernet and the Precision Time Protocol for timing-sensitive applications.
- ▪The device includes multiple connectivity options, such as a microSD card slot and SMA connectors for external devices.
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| Original publisher | Hackster.io |
| Canonical URL | https://www.hackster.io/news/the-switchberry-turns-a-raspberry-pi-compute-module-4-into-a-time-focused-ethernet-switch-85ecd2eb97b2 |
| Publication time | Mon, 25 May 2026 06:43:04 +0000 |
| Retrieval time | 2026-05-25T07:07:36.419Z |
| Last seen | 2026-05-25T07:07:36.419Z |
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| Cluster | 4Ua7reE-SZWu |
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Opening excerpt (first ~120 words) tap to expand
The Switchberry Turns a Raspberry Pi Compute Module 4 Into a Time-Focused Ethernet SwitchTimeAppliance's carrier for the Raspberry Pi CM4 includes everything you need to experiment with the Precision Time Protocol — and more.Gareth HalfacreeFollow3 months ago • HW101 / Clocks 55San Jose-based TimeAppliances has designed a Raspberry Pi Compute Module 4 carrier with a difference: it turns the popular computer-on-module into a five-port gigabit layer-two switch, with support for synchronous Ethernet and the Precision Time Protocol (PTP)."Switchberry is a Raspberry Pi [Compute Module] 4–controlled Ethernet switching + timing platform built around a Microchip KSZ9567 and a Renesas 8A34004 clock-matrix DPLL [Digital Phase-Locked Loop]," TimeAppliances says of its creation.
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