LMN-3-ECAD
About the LMN-3-ECAD PCB
LMN-3-ECAD is an open source NXP PCB design by FundamentalFrequency, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 304.8 × 95.3 mm, with 100 components from 5 distinct parts.
Its main chip is the teensy_4.1, from the NXP family. Other key parts include the EC11E_H20 and COM-09032. By type, the board carries 49 diodes, 45 switches and 6 ICs.
From the project
Electrical CAD Files for the LMN-3 Project
This repository contains the KiCad 6 project files for the LMN-3 PCB.
If you would like to support the project, please consider becoming a sponsor.
Main components on the LMN-3-ECAD
LMN-3-ECAD bill of materials (BOM)
100 components, 5 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | EC11E_H20 | EC11E_H20 | U1, U2, U3, U4 |
| 1 | COM-09032 | COM-09032 | U5 |
| 1 | teensy_4.1 | teensy_4.1 | U6 |
| 45 | SW_Push | SW_Cherry_MX_PCB_1.00u | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +37 |
| 49 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8 +41 |
LMN-3-ECAD design files
The KiCad project lives in the FundamentalFrequency/LMN-3-ECAD repository on GitHub; these links point at the commit this page was built from.
- LayoutLMN.kicad_pcb
- SchematicLMN.kicad_sch
LMN-3-ECAD: common questions
What microcontroller does the LMN-3-ECAD use?
The LMN-3-ECAD is built around the teensy_4.1, from the NXP family.
How big is the LMN-3-ECAD PCB?
The LMN-3-ECAD measures 304.8 × 95.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the LMN-3-ECAD?
100 components, from 5 distinct parts. The full bill of materials is listed on this page.
Where can I download the LMN-3-ECAD design files?
From the FundamentalFrequency/LMN-3-ECAD repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the LMN-3-ECAD design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which FundamentalFrequency chose for the repository.
Can I test firmware for the LMN-3-ECAD without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug NXP firmware against it before you order a PCB.
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