10 open source boards using the MCP2551-I-SN

Real designs built with the MCP2551-I-SN, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.

The MCP2551-I-SN in open source designs

The gallery holds 10 open source boards using the MCP2551-I-SN from 5 GitHub repositories; a typical one measures about 74.3 × 56.7 mm and carries around 56 components.

90% are two-layer designs, the rest use four layers or more, and 20% carry an open source license.

The most starred is NMEA2000Adapter-8.1 by peterantypas.

Microcontrollers on boards using the MCP2551-I-SN

What boards using the MCP2551-I-SN are built for

MCP2551-I-SN: common questions

Where can I find a MCP2551-I-SN reference design?

Each of the 10 boards on this page is a real design using the MCP2551-I-SN. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.

Which microcontrollers do boards using the MCP2551-I-SN use?

Most are built on STM32 (6), AVR/Arduino (3) and ESP32 (1).

How big is a typical board using the MCP2551-I-SN?

The median is 74.3 × 56.7 mm, and 90% are two-layer designs.

What is the most popular open source board using the MCP2551-I-SN?

By GitHub stars, NMEA2000Adapter-8.1 by peterantypas, with 444 stars.

Can I simulate one of these boards using the MCP2551-I-SN before building it?

Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.

Browse boards by part