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Keyboard

WilliamLim781·PCB_practice·keyboard/keyboard.kicad_pcb

Keyboard PCB layout, top view — open source AVR/Arduino board by WilliamLim781
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About the Keyboard PCB

Keyboard is an open source AVR/Arduino PCB design by WilliamLim781, published on GitHub. It is a 2-layer board measuring 100 × 123.8 mm, with 57 components from 26 distinct parts.

Its main chip is the C84808, from the AVR/Arduino family. Other key parts include the C7432801. By type, the board carries 18 switches, 17 diodes, 9 capacitors, 7 resistors, 3 connectors and 2 ICs.

It belongs with the keyboards designs in this gallery.

Main components on the Keyboard

C84808C7432801

Keyboard bill of materials (BOM)

57 components, 26 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C84808
ATmega32U4-A
U1
1
C7432801
USBLC6-2SC6
U2
1
12MHZ
16 MHz
Y1
1
USB_C_Receptacle_USB2.0
J1
1
CAN2
JTAG 10
J2
1
I2C
J3
1
RST
SW1
13
SW_Push
SW2, SW4, SW5, SW6, SW7, SW8, SW10, SW11 +5
1
C221841
SW_Push
SW3
2
SW_Push
SW9, SW18
1
SW_Push
SW16
2
C72038
D
D1, D2
15
D
D3, D4, D5, D6, D7, D8, D9, D10 +7
1
C14663
1u
C1
1
C14663
10 uF
C2
2
C282508
100n
C3, C4
2
C14663
100n
C5, C8
1
C1620
22p
C6
1
C15849
22p
C7
1
C1653
10u
C9
Show 6 more
QtyPartRefs
1
C22787
5k1
R1
1
C22787
22
R2
1
C25804
22
R3
1
10k
R4
1
C509091
5k1
R5
2
C4190
2k2
R6, R7

Keyboard design files

The KiCad project lives in the WilliamLim781/PCB_practice repository on GitHub; these links point at the commit this page was built from.

Keyboard: common questions

What microcontroller does the Keyboard use?

The Keyboard is built around the C84808, from the AVR/Arduino family.

How big is the Keyboard PCB?

The Keyboard measures 100 × 123.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keyboard?

57 components, from 26 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Keyboard design files?

From the WilliamLim781/PCB_practice repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Keyboard design in my own project?

The repository has no license, so all rights stay with WilliamLim781. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Keyboard without the hardware?

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

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