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2 layers81 × 38.1 mmPcb tutorial, the printed circuit board in 3D

my personal goal is to design a pcb for a split keyboard by the end of august 2024. so right now im starting off my learning process by following a tutorial on how to make a 2x2 keypad (gotta start small)

Size
81 × 38.1 mm
Copper layers
2
Thickness
1.6 mm
Parts
24
Nets
48
Pads
121
Tracks, vias
10, 0
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
20 Jul 2024
Updated
27 Jul 2024

Overview

Pcb tutorial is an open-source printed circuit board by zyx-db, from the zyx-db/kb_pcb_tutorial repository on GitHub. It is a 2-layer board of 81 × 38.1 mm with 24 parts on 48 nets, routed with 10 tracks and 0 vias.

It is built around the ATMEGA32U4-AU. Its parts include 7 capacitors, 4 resistors, 4 diodes, 1 IC and 1 switch. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.

Main components

1

README

readme.md

hey! im db and im learning to make a keyboard.

my personal goal is to design a pcb for a split keyboard by the end of august 2024. so right now im starting off my learning process by following a tutorial on how to make a 2x2 keypad (gotta start small)

Parts

24
QtyValueFootprintReferences
4D_SmallDiode_SMD:D_SOD-123D1, D2, D3, D4
4MX-NoLEDMX_Alps_Hybrid:MX-1U-NoLEDMX1, MX2, MX3, MX4
30.1ufCapacitor_SMD:C_0805_2012MetricC2, C3, C4
222Resistor_SMD:R_0805_2012MetricR2, R3
222pFCapacitor_SMD:C_0805_2012MetricC6, C7
110KResistor_SMD:R_0805_2012MetricR1
110kResistor_SMD:R_0805_2012MetricR4
110ufCapacitor_SMD:C_0805_2012MetricC5
11uFCapacitor_SMD:C_0805_2012MetricC1
1ATmega32U4-APackage_QFP:TQFP-44_10x10mm_P0.8mmU1
1Crystal_GND24_SmallCrystal:Crystal_SMD_3225-4Pin_3.2x2.5mmY1
1Molex-0548190589random-keyboard-parts:Molex-0548190589USB1
1Polyfuse_SmallFuse:Fuse_1206_3216MetricF1
1SW_Pushrandom-keyboard-parts:SKQG-1155865SW1

Questions

How big is the Pcb tutorial PCB?

It measures 81 × 38.1 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Pcb tutorial use?

24 parts, built around the ATMEGA32U4-AU. 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 Pcb tutorial KiCad files?

From the zyx-db/kb_pcb_tutorial repository on GitHub, at the commit this page was made from: the board is pcb-tutorial.kicad_pcb and its schematic pcb-tutorial.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Pcb tutorial design in my own project?

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

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