HardLabs

Bifrost

Tetrush·Bifrost

This repository ships a schematic but no board layout.

About the Bifrost PCB

Bifrost is an open source RP2040/RP2350 PCB design by Tetrush, published on GitHub under the Apache-2.0 license. It is a board, with 7 components from 6 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. By type, the board carries 2 connectors, 2 capacitors, 1 IC, 1 switch and 1 resistor.

From the project

Dual-Port Ethernet Bridge Interface for Raspberry Pi Pico (RP2040).

Project Bifrost is a high-performance network interface bridge designed for the Raspberry Pi Pico (RP2040). It provides dual-port Ethernet connectivity using W5500 modules, optimized for signal integrity and stability in demanding network applications.

1. Power Supply: Ensure a stable 3.3V power source. 2. Signal Damping: Place 100Ω resistors in series on the SCK lines, positioned as close as possible to the RP2040. 3. Decoupling: Use a 0.1μF decoupling capacitor between VCC and GND for each W5500 module. Position these capacitors as physically close as possible to the power pins of the…

Main components on the Bifrost

Pico

Bifrost bill of materials (BOM)

7 components, 6 distinct parts.

QtyPartRefs
1
Pico
U1
1
Primary W5500
J1
1
Secondary W5500
J2
1
Define Tag
SW1
2
0.1μF
C2, C3
1
100R
R1

Bifrost design files

The KiCad project lives in the Tetrush/Bifrost repository on GitHub; these links point at the commit this page was built from.

Bifrost: common questions

What microcontroller does the Bifrost use?

The Bifrost is built around the Pico, from the RP2040/RP2350 family.

How many components are on the Bifrost?

7 components, from 6 distinct parts. The full bill of materials is listed on this page.

Where can I download the Bifrost design files?

From the Tetrush/Bifrost repository on GitHub, which has the schematic; the links under Design files point to each one.

Can I use the Bifrost design in my own project?

Yes, under the terms of its Apache-2.0 license, which Tetrush chose for the repository.

Can I test firmware for the Bifrost without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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