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2 layers29 × 12 mmKeyboard2, the printed circuit board in 3D

USB stick with AVR ATMega32u2 microcontroller

Size
29 × 12 mm
Copper layers
2
Thickness
1.6 mm
Parts
22
Nets
35
Pads
86
Tracks, vias
159, 12
Pours
3
Routed
Yes
KiCad
KiCad 4
Created
13 Oct 2015
Updated
19 Jun 2016

Overview

Keyboard2 is an open-source printed circuit board by untaugh, from the untaugh/KeyBoard repository on GitHub. It is a 2-layer board of 29 × 12 mm with 22 parts on 35 nets, routed with 159 tracks and 12 vias.

Its parts include 7 resistors, 4 capacitors, 4 diodes, 2 connectors and 1 IC. It belongs with the AVR (ATmega, ATtiny) boards of this library.

README

README

USB stick with AVR ATMega32u2 microcontroller

PCB designed in KiCad. The code is for emulating a keyboard and typing a password from EEPROM when the button is pressed. It uses the LUFA usb library.

Parts

22
QtyValueFootprintReferences
31ukeyboard2_footprints:C_0402_nosilkC1, C2, C3
3270keyboard2_footprints:R_0402_nosilkR3, R4, R6
222keyboard2_footprints:R_0402_nosilkR1, R2
11kkeyboard2_footprints:R_0402_nosilkR5
14k7keyboard2_footprints:R_0402_nosilkR7
1CONN_01X09keyboard2_footprints:connector_smd_round2J2
1LOGOpcb_graphics:graphics_botG***
1LOGOpcb_graphics:graphics_topG***
1atmega8u2-qfnkeyboard2_footprints:qfn32_nosilkU1
1btn_sp2keyboard2_footprints:button_smd_panasonicB1
1led_bluekeyboard2_footprints:LED_0603_nosilkD3
1led_greenkeyboard2_footprints:LED_0603_nosilkD2
1led_redkeyboard2_footprints:LED_0603_nosilkD1
1led_yellowkeyboard2_footprints:LED_0603_nosilkD4
1not mountedkeyboard2_footprints:C_0402_nosilkC4
1resonatorkeyboard2_footprints:resonator_murata_smdX1
1usb_pcbkeyboard2_footprints:usb_pcbJ1

Questions

How big is the Keyboard2 PCB?

It measures 29 × 12 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Keyboard2 use?

22 parts. 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 Keyboard2 KiCad files?

From the untaugh/KeyBoard repository on GitHub, at the commit this page was made from: the board is pcb/keyboard2.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Keyboard2 design in my own project?

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

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