2 layers301 × 97.3 mm 65Percent, the printed circuit board in 3D

65Percent

QMK Based Keyboard based on the ATmega32A and the VUSB protocol

Size: 301 × 97.3 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 166
Nets: 113
Pads: 608
Tracks, vias: 857, 44
Pours: 2
Routed: Yes
KiCad: KiCad 6 (file 20211014)
Created: 5 Sep 2022
Updated: 29 Aug 2023

Overview

65Percent is an open-source printed circuit board by atcheng2, from the atcheng2/65-Percent-Keyboard repository on GitHub. It is a 2-layer board of 301 × 97.3 mm with 166 parts on 113 nets, routed with 857 tracks and 44 vias.

It is built around the ATMEGA32A-AU. Its parts include 70 diodes, 69 switches, 7 capacitors, 6 resistors and 2 connectors. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.

Main components

ATMEGA32A-AU
TQFP-44(10x10)-40℃~+85℃ 10bit 16MHz 1KB 2.7V~5.5V 2KB 32 32KB 8 Bit AVR Built-in FLASH TQFP-44(10x10) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)

README

README.md

65-Percent-Keyboard

QMK Based Keyboard based on the ATmega32A and the VUSB protocol. This build implements an ANSI 65% layout for standard MX-style switches. The ATmega32A is implemented over the more standard ATmega32u4 that has native USB support due to budget constraints and part availability.

Parts

166

Qty	Value	Footprint	References
68	D	keyboard_parts:D_SOD123W_hand	D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24, D25 +52
57	KEYSW	Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB	K1, K10, K11, K12, K13, K14, K15, K17, K18, K19, K20, K21, K22, K23, K24, K25 +41
4	0.1u	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C3, C4, C6, C7
3	KEYSW	Button_Switch_Keyboard:SW_Cherry_MX_1.25u_PCB	K5, K7, K16
2	22p	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1, C2
2	3.6V	Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal	D1, D2
2	5.1k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R5, R6
2	68	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R3, R4
2	KEYSW	Button_Switch_Keyboard:SW_Cherry_MX_1.75u_PCB	K3, K58
2	KEYSW	Button_Switch_Keyboard:SW_Cherry_MX_2.25u_PCB	K4, K57
2	KEYSW	Button_Switch_Keyboard:SW_Cherry_MX_1.50u_PCB	K2, K61
1	1.5k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R2
1	10k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1
1	16MHz	keyboard_parts:Clock_THT	Y1
1	4.7u	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C5
1	500mA	Fuse:Fuse_0805_2012Metric_Pad1.15x1.40mm_HandSolder	F1
1	ATmega32A-A	Package_QFP:TQFP-44_10x10mm_P0.8mm	U1
1	Bootloader Jumper	keyboard_parts:SOLDER_JUMPER_2	JP1
1	ISP Headers	Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical	J1
1	KEYSW	Button_Switch_Keyboard:SW_Cherry_MX_2.00u_PCB	K60
1	KEYSW	Button_Switch_Keyboard:SW_Cherry_MX_6.25u_PCB	K29
1	LOGO	keyboard_parts:dollEr
1	LOGO	keyboard_parts:guy
1	Reset SW	keyboard_parts:Pushbutton_PTS526	SW1
1	USB C Port	keyboard_parts:USB_C_2169900002	J2

The 160 most common of 166 parts.

Questions

How big is the 65Percent PCB?

It measures 301 × 97.3 mm and has 2 copper layers, 1.6 mm thick.

What parts does the 65Percent use?

166 parts, built around the ATMEGA32A-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 65Percent KiCad files?

From the atcheng2/65-Percent-Keyboard repository on GitHub, at the commit this page was made from: the board is schematic/65Percent.kicad_pcb and its schematic schematic/65Percent.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the 65Percent design in my own project?

Its repository states no licence, so its author keeps all rights: ask atcheng2 before reusing the design.

Category and platform

Keyboards and input AVR (ATmega, ATtiny)

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/atcheng2-65-percent-keyboard" title="65Percent in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/atcheng2-65-percent-keyboard.jpg" alt="65Percent" width="1200" height="900">

A picture that opens the board, for a README

[![65Percent](https://pcbkit.io/embed/boards/atcheng2-65-percent-keyboard.jpg?size=s)](https://pcbkit.io/boards/atcheng2-65-percent-keyboard)

Source

Repository: atcheng2/65-Percent-Keyboard
Board file: schematic/65Percent.kicad_pcb
Commit: 7f83804
Licence: Not stated

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