2 layers75 × 50 mm Remnant, the printed circuit board in 3D

Remnant

4x2 macro keyboard with attiny85 based digispark

Size: 75 × 50 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 29
Nets: 18
Pads: 106
Tracks, vias: 87, 1
Pours: 2
Routed: Yes
KiCad: KiCad 5 (file 20171130)
Created: 22 May 2019
Updated: 6 Aug 2019

Overview

Remnant is an open-source printed circuit board by hsgw, from the hsgw/Remnant repository on GitHub. It is a 2-layer board of 75 × 50 mm with 29 parts on 18 nets, routed with 87 tracks and 1 via.

It is built around the ATTINY85-20PU and 74LS165PC. Its parts include 8 switches, 3 capacitors, 3 resistors, 2 ICs and 2 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

README

README.md

Remnant

Remnant 4x2 macro keyboard with attiny85 based digispark.

Document

Needs

Arduino IDE and Digispark https://digistump.com/wiki/digispark/tutorials/connecting
DigisparkKeyboardExtend library https://github.com/hsgw/DigisparkKeyboardExtend

License

Digispark is licensed under CC BY-SA 3.0 http://creativecommons.org/licenses/by-sa/3.0/
(c) Digistump

Remnant is licensed under CC BY-SA 3.0 http://creativecommons.org/licenses/by-sa/3.0/
(c) 2019, Takuya Urakawa, dm9records.com

Parts

Qty	Value	Footprint	References
8	MX	SMKJP:SW_Cherry_MX1A_1.00u_PCB	SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8
4	MountingHole	Mounting_Holes:MountingHole_2.2mm_M2_Pad	H1, H2, H3, H4
2	100n	Capacitors_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm	C2, C3
2	3.6V	dm9_rc:D_DO-35_SOD27_P5.08mm_Horizontal	D1, D2
2	75R	Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal	R2, R3
1	100mA	dm9_miscs:polyfuse_5.1mm	F1
1	10u	Capacitors_THT:CP_Radial_D4.0mm_P1.50mm	C1
1	1k5	Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal	R1
1	74LS165	Housings_DIP:DIP-16_W7.62mm	U2
1	ATTINY85-20PU	Housings_DIP:DIP-8_W7.62mm	U1
1	LOGO	dm9_silks:logo_hsgw_5mm	G***
1	LOGO	remnant_silk:logo2	G***
1	LOGO	dm9_silks:logo_dm9_5mm	G***
1	LOGO	remnant_silk:logo1	G***
1	R_Network08	Resistors_THT:R_Array_SIP9	RN1
1	USB_OTG	dm9_conn:USB-microB-LCSC-U-F-M5DD-W-2	J1

Questions

How big is the Remnant PCB?

It measures 75 × 50 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Remnant use?

29 parts, built around the ATTINY85-20PU and 74LS165PC. 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 Remnant KiCad files?

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

Can I use the Remnant design in my own project?

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

Category and platform

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/hsgw-remnant" title="Remnant 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/hsgw-remnant.jpg" alt="Remnant" width="1200" height="900">

A picture that opens the board, for a README

[![Remnant](https://pcbkit.io/embed/boards/hsgw-remnant.jpg?size=s)](https://pcbkit.io/boards/hsgw-remnant)

Source

Repository: hsgw/Remnant
Board file: pcb/remnant.kicad_pcb
Commit: 667c820
Licence: Not stated

Similar boards

2 layers128.3 × 50.8 mm
CD32 Controller
BleuLlama/AmigaSchematics
Schematics of various Commodore Amiga related items
33 parts58MIT
2 layers128.6 × 81 mm
Afterglow
bitfieldlabs/afterglow
Pinball retro afterglow
203 parts32
2 layers
Panel old
dankar/altair8800
What started as a Intel 8080 emulator turned into a Altair 8800 emulator with associated hardware for a front panel.
103 parts31MIT
2 layers254 × 134.6 mm
New enet
jayacotton/inettools-z80
Inet tools for z80-rc2014 tcp/ip stack code.
36 parts22MIT
4 layers180.3 × 211.3 mm
For real 486
Xeraster/32bit_486_motherboard
A completely DIY 486 motherboard. Even the chipset is a DIY fpga thing. This version has a 32 bit front side bus and a 16 bit ISA bis
256 parts18GPL-3.0
2 layers100 × 100 mm
1551-III Pico
ytmytm/1551-rePico
Commodore 1551 disk-drive replacement for Plus/4, C16 and C116: Pico2 + 6510T + CPLD in a Pi1551-III case, host via tcbm2sd. Firmware/GCR derived from 1541-rePico.
80 parts16GPL-3.0
2 layers85.1 × 31.8 mm
Esp01Expander
ruenahcmohr/esp_01Expand32
esp-01 (esp8266) IO expander, 16 output, 16 input = 32
20 parts15
2 layers130 × 60 mm
Controller
Miceuz/StepperOverDMX
A system to control a stepper motor over DMX protocol.
39 parts13Apache-2.0