2 layers295.8 × 148.5 mm Keyboard, the printed circuit board in 3D

Keyboard

a 15*5 ortholinear keyboard

Size: 295.8 × 148.5 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 188
Nets: 120
Pads: 649
Tracks, vias: 1,072, 42
Pours: 2
Routed: Yes
KiCad: KiCad 5 (file 20171130)
Created: 1 Feb 2021
Updated: 6 Mar 2021

Overview

Keyboard is an open-source printed circuit board by MakerJake01, from the MakerJake01/J73K_keyboard repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 295.8 × 148.5 mm with 188 parts on 120 nets, routed with 1,072 tracks and 42 vias.

It is built around the ATMEGA32A-PU. Its parts include 76 diodes, 7 resistors, 5 capacitors, 2 connectors and 2 switches. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.

Main components

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

README

README.md

J73K_keyboard

a 15*5 ortholinear keyboard using an atmega32a and usb c. V1.1 with a 3d printed case and all the parts at the top of the pcb.

Photo album sound test

Category and platform

Keyboards and input AVR (ATmega, ATtiny)

Project files

Show this board on your page

https://pcbkit.io/boards/MakerJake01/J73K_keyboard

The board's own page, for a message or a post.

Source

Repository: MakerJake01/J73K_keyboard
Board file: pcb & electronic files/kicad files/keyboard.kicad_pcb
Commit: 47c581f
Licence: GPL-3.0

Parts

188

Qty	Value	Footprint	References
73	1N4148	Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal	D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +57
71	KEYSW	Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB	K_&DARR;1, K_&LARR;1, K_&RARR;1, K_&UARR;1, K_0, K_1, K_2, K_3, K_4, K_5, K_6, K_7, K_8, K_9, K_A1, K_ALT1 +55
20	CONN_1	keyboard_parts:PIN_1	P?, P?, P?, P?, P?, P?, P?, P?, P?, P?, P?, P?, P?, P?, P?, P? +4
2	.1uf	Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm	C2, C3
2	1.5k	Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal	R6, R7
2	22	Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal	R4, R5
2	22pf	Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm	C5, C6
2	3.6v	cftkb:D_DO-35_SOD27_P5.08mm_Horizontal	D74, D75
2	5.1k	Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal	R1, R2
2	KEYSW	Button_Switch_Keyboard:SW_Cherry_MX_2.00u_PCB	K_SPACE1, K_SPACE2
2	SW_Push	Button_Switch_THT:SW_PUSH_6mm	SW1, SW2
1	10k	Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal	R3
1	4.7	cftkb:CP_Radial_D4.0mm_P1.50mm	C1
1	500ma	cftkb:polyfuse_5.1mm	F1
1	ATmega32A-PU	Package_DIP:DIP-40_W15.24mm	U1
1	AVR-ISP-6	cftkb:AVR_ICSP_3x2	J1
1	Crystal	Crystal:Crystal_HC49-U_Vertical	16mMhz1
1	LED	cftkb:LED_D3.0mm	D76
1	USB_C_Receptacle_USB2.0	Connector_USB:USB_C_Receptacle_XKB_U262-16XN-4BVC11	J2

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Questions

How big is the Keyboard PCB?

It measures 295.8 × 148.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Keyboard use?

188 parts, built around the ATMEGA32A-PU. 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 Keyboard KiCad files?

From the MakerJake01/J73K_keyboard repository on GitHub, at the commit this page was made from: the board is pcb & electronic files/kicad files/keyboard.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Keyboard design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).