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Keybored65

EriicLii·Keybored65

Keybored65 PCB layout, top view — open source AVR/Arduino board by EriicLii

About the Keybored65 PCB

Keybored65 is an open source AVR/Arduino PCB design by EriicLii, published on GitHub. It is a 2-layer board measuring 316.7 × 133.4 mm, with 161 components from 18 distinct parts.

Its main chip is the ATMEGA32U4, from the AVR/Arduino family. Other key parts include the SSD1306-Display_Graphic. By type, the board carries 67 diodes, 66 relays, 12 capacitors, 10 resistors, 2 ICs and 2 switches.

It belongs with the keyboards and displays & leds designs in this gallery.

From the project

My first attempt at making a keyboard PCB. A 65% board with OLED and rotary encoder support.

Main components on the Keybored65

ATMEGA32U4SSD1306-Display_Graphic

Keybored65 bill of materials (BOM)

161 components, 18 distinct parts.

QtyPartRefs
1
ATMEGA32U4
U1
1
SSD1306-Display_Graphic
U2
1
Crystal
Y1
1
USB_C_Receptacle_USB2.0
J1
66
KEYSW
K1, K2, K3, K4, K5, K6, K7, K8 +58
1
SW_PUSH
SW1
1
Rot_Enc_Sw
SW2
67
D
D1, D2, D3, D4, D5, D6, D7, D8 +59
2
22p
C1, C2
1
1u
C3
2
100n
C4, C5
6
0.1u
C6, C7, C8, C9, C10, C11
1
4.7u
C13
2
5.1k
R1, R2
2
22
R3, R4
2
10k
R5, R6
2
27k
R7, R8
2
4.7k
R9, R10

Keybored65 design files

The KiCad project lives in the EriicLii/Keybored65 repository on GitHub; these links point at the commit this page was built from.

Keybored65: common questions

What microcontroller does the Keybored65 use?

The Keybored65 is built around the ATMEGA32U4, from the AVR/Arduino family.

How big is the Keybored65 PCB?

The Keybored65 measures 316.7 × 133.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keybored65?

161 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the Keybored65 design files?

From the EriicLii/Keybored65 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Keybored65 design in my own project?

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

Can I test firmware for the Keybored65 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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