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2 layers20.3 × 12.7 mmMicrosd, the printed circuit board in 3D

A home for a bunch of microcontroller projects which don't warrant their own repos.

Size
20.3 × 12.7 mm
Copper layers
2
Thickness
1.6 mm
Parts
8
Nets
14
Pads
46
Tracks, vias
160, 23
Pours
2
Routed
Yes
KiCad
KiCad 4
Created
20 Nov 2014
Updated
6 Jul 2024

Overview

Microsd is an open-source printed circuit board by thebiguno, from the thebiguno/microcontroller-projects repository on GitHub. It is a 2-layer board of 20.3 × 12.7 mm with 8 parts on 14 nets, routed with 160 tracks and 23 vias.

It is built around the 74LS125DC. Its parts include 2 capacitors, 2 resistors, 2 connectors and 1 IC.

Main components

1

README

README.md

microcontroller-projects

A home for my microcontroller projects, including Stubby the Hexapod and others. It includes libraries for avr-gcc along with sample programs on how to use them, some KiCad modules, and the source code for a number of projects.

Some major projects include:

Some of the AVR libraries included here are:

  • serial communications
  • TWI (I2C), with support for master read / master write / slave read / slave write, plus callback functions for asyncronous communications
  • reading data from a PS2 controller
  • timer functions
  • and much more

Parts

8
QtyValueFootprintReferences
210kSM0603_VALUER1, R2
21uSM0603_VALUEC1, C2
174LS125SSOP-14U1
1CONN_13475710001P2
1CONN_8SIL-8P1
1MCP1702SOT23VR1

Questions

How big is the Microsd PCB?

It measures 20.3 × 12.7 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Microsd use?

8 parts, built around the 74LS125DC. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Microsd KiCad files?

From the thebiguno/microcontroller-projects repository on GitHub, at the commit this page was made from: the board is projects/microsd/microsd.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Microsd design in my own project?

Its repository states no licence, so its author keeps all rights: ask thebiguno before reusing the design.

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