2 layers245.1 × 160 mm
8-Bit CPU 32k
slu4coder/Minimal-64x4-Home-Computer
My DIY TTL home computer with VGA and PS/2 and 4x the processing power of a Commodore C64 or Apple II.
139 parts326
Boards using the 74HC157D
81 boardsBoards in 53 GitHub repositories, designed in KiCad, that use the 74HC157D by Nexperia (-40℃~+125℃ 10ns@6.0V,50pF 160uA 2V~6V 5.2mA 5.2mA 74HC 8/4 Multiplexer Single Supply SOIC-16 Signal Switches, Multiplexers, Decoders ROHS). See how each wires it, with its parts, size, README and files; the 74HC157D’s symbol, footprint and pinout are on its own page.
- 2 layers229.9 × 111.8 mm
- 2 layers216 × 150 mm
Motherboard-101
artemisamsx/artemisa
Schematics, PCB designs and HDL simulations to build a 8-bits MSX computer
124 parts67 - 2 layers110 × 117 mm
Add sub
tmarhguy/alu
8-bit combinational ALU built from scratch with 3,488 CMOS transistors (KiCad + SPICE + Logisim + 1.24M tests
200 parts48MIT - 2 layers177.8 × 130.8 mm
- 2 layers152.9 × 74.9 mm
- 2 layers208 × 110 mm
- 4 layers158.8 × 104.1 mm
- 2 layers69.8 × 31.8 mm
Gen to pce
rattboi/gen-to-pce-controller-adapter
Simple Genesis 3-button to PC-Engine adapter ============================================
13 parts20 - 2 layers335 × 218.6 mm
- 4 layers100 × 100 mm
- 2 layers178 × 711 mm
- 2 layers152.4 × 162.6 mm
VGA
GeraKuznetsov/M68K-MBC
A M68k Multi-Board Computer design. The design basics is as follows: 1) A backplane PCB contains the majority of the bus, such as the address and data lines. 2) Cards slot into the backplane.
143 parts10 - 2 layers114.2 × 36.8 mm
Airbox
Alacrity-Education/AirBoxV2
The AirBox V2 Station is an open source air quality monitoring station based on the Sensirion SEN66 sensor. It measures particulate matter, CO2, VOC and NOx, runs on a solar charged lithium cell, and reports over Wi-Fi.
68 parts6GPL-3.0 - 2 layers101.6 × 83.8 mm
Z80DevBoard
dbuchwald/Z80DevBoard
Simple Z80 based prototyping and development board designed as extension to Arduino Mega 2560
39 parts3MIT - 2 layers219 × 88 mm
- 2 layers160 × 140 mm
8-Bit CPU
otterbox901/8-Bit_CPU
Microcoded 8-bit CPU built from 24 74HC-series ICs: a custom 10-instruction ISA, 4 general-purpose registers, and an EEPROM-driven control unit.
69 parts2 - 4 layers271.8 × 147.3 mm
- 2 layers80 × 60 mm
- 4 layers
8b alu slice
tmarhguy/tomato
A functional 32-bit computer built from scratch in a dorm; implemented on FPGA, Kicad, browser simulation
1,105 parts2 - 2 layers100.1 × 100.1 mm
AMP PCBv2
Autonomous-Motorsports-Purdue/AMP_PCBv2
Files relating to version 2 of the PCB for AMP kart
116 parts1 - 4 layers100 × 100 mm
- 4 layers140 × 136 mm
Vinyl adc rev d
MadsRudolph/vinyl-adc
Discrete 3rd-order delta-sigma stereo audio ADC, built from op-amps and logic gates: a four-layer Raspberry Pi HAT made by PCBWay, with KiCad files, SPICE simulations and measurements
184 parts1 - 2 layers299.7 × 198.1 mm
Cisc-8
nailed-barnacle/Cisc-8-ttl-processor
A cut-down version of the 8080 processor using HCTTL and including a discrete ALU and instruction decoder
319 parts1MIT