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Microcontroller Expansion Card

TheUnproductive·FrameworkHDMICaptureCard·ExpansionCards/Electrical/Microcontroller/Microcontroller.kicad_pcb

Microcontroller Expansion Card PCB layout, top view — open source Microchip SAM board by TheUnproductive

About the Microcontroller Expansion Card PCB

Microcontroller Expansion Card is an open source Microchip SAM PCB design by TheUnproductive, published on GitHub. It is a 2-layer board measuring 26 × 30 mm, with 24 components from 15 distinct parts.

Its main chip is the ATSAMD21E18A-M, from the Microchip SAM family. Other key parts include the GD25Q16CT, AP2112K-3.3 and TLV70036_SOT23-5. By type, the board carries 8 capacitors, 6 resistors, 4 ICs, 3 connectors, 2 diodes and 1 switch.

From the project

Expansion Cards © 2021 by Framework Computer Inc is licensed under CC BY 4.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

Expansion Cards © 2021 by Framework Computer Inc is licensed under CC BY 4.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

- KiCadtemplates - These are templates with the PCB outline and some basic components to let you get started with a card design quickly. The ExpansionCard template is designed to be used with the 3D printable enclosures in the Mechanical folder. The ExpansionCardRetrofit template is smaller and designed to fit into the existing Expansion Card enclosures like the DP Expansion Card's. You can copy the folders to the default template…

Microcontroller Expansion Card, from the project README
From the project README

Main components on the Microcontroller Expansion Card

ATSAMD21E18A-MGD25Q16CTAP2112K-3.3TLV70036_SOT23-5

Microcontroller Expansion Card bill of materials (BOM)

24 components, 15 distinct parts.

QtyPartRefs
1
ATSAMD21E18A-M
U1
1
GD25Q16CT
U2
1
AP2112K-3.3
U3
1
TLV70036_SOT23-5
U4
1
JST SH 1x4
J1
1
Conn_01x10
J2
1
USB_C_Plug_USB2.0
P1
1
RESET
SW1
1
BAT20JFILM
D1
1
WS2812B
D2
3
1uF
C1, C7, C8
3
100nF
C2, C3, C4
2
10uF
C5, C6
5
5.1k
R1, R3, R4, R5, R6
1
1k
R2

Microcontroller Expansion Card design files

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

Microcontroller Expansion Card: common questions

What microcontroller does the Microcontroller Expansion Card use?

The Microcontroller Expansion Card is built around the ATSAMD21E18A-M, from the Microchip SAM family.

How big is the Microcontroller Expansion Card PCB?

The Microcontroller Expansion Card measures 26 × 30 mm, has 2 copper layers and is 0.8 mm thick.

How many components are on the Microcontroller Expansion Card?

24 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the Microcontroller Expansion Card design files?

From the TheUnproductive/FrameworkHDMICaptureCard repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Microcontroller Expansion Card design in my own project?

The repository has no license, so all rights stay with TheUnproductive. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Microcontroller Expansion Card without the hardware?

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

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