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 74HC08D
154 boardsBoards in 105 GitHub repositories, designed in KiCad, that use the 74HC08D by Nexperia (-40℃~+125℃ 1.5V~4.2V 1.9V、3.7V、5.2V 100mV、400mV 2 27ns@4.5V,50pF 2V~6V 2uA 4 5.2mA 5.2mA 500mV~1.8V 74HC Series AND Gate SOIC-14 Logic Gates ROHS). See how each wires it, with its parts, size, README and files; the 74HC08D’s symbol, footprint and pinout are on its own page.
- 2 layers191.8 × 121.3 mm
8-Bit CPU 32k
slu4coder/Minimal-UART-Computer-1-2
Legacy: Version 1 and 2 of my TTL-only CPU featuring UART I/O, an expansion port, 512KB SSD at up to 10MHz clock speed
109 parts184 - 2 layers99.1 × 88.9 mm
1002 EPROM EMU NG 2.2d
Kris-Sekula/EPROM-EMU-NG
EPROM Emulator Project with Arduino
49 parts161Apache-2.0 - 2 layers306.1 × 130.2 mm
8-Bit CPU 32k
slu4coder/Minimal-64-Home-Computer
Legacy: Full TTL-only home computer with VGA and PS/2 and twice the processing power of a Commodore 64
132 parts94 - 4 layers184.2 × 169.5 mm
- 4 layers69 × 74 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 layers152.9 × 74.9 mm
- 4 layers158.8 × 104.1 mm
- 2 layers335 × 218.6 mm
- 2 layers145.3 × 129.9 mm
C128Diag
hackup/C128Diag
Replica of the Commodore C128 Diagnostic Test cartridge Assy No. 325093-01.
61 parts16 - 4 layers100 × 100 mm
- 2 layers178 × 711 mm
- 2 layers100 × 120 mm
Dcc station
cc90202/DCC-esp32
DCC command station for ESP32-C6 — NMRA-compliant model railroad controller in Rust
82 parts12 - 4 layers65.9 × 52.9 mm
- 4 layers170 × 130 mm
Z80Atmega128
46nori/Z80Atmega128
Real Z80A system with I/O emulated by AVR(ATmega128)
109 parts9GPL-3.0 - 4 layers65.9 × 52.7 mm
Motor shield
DCC-EX/EX-Hardware
Open Source hardware projects developed by the DCC-EX Team
123 parts7CERN-OHL-W-2.0 - 4 layers115 × 140 mm
- 6 layers210 × 119 mm
Claculator Keypad
Robert-Mones/Claculator
A reverse Polish notation calculator with added features such as comparisons, branching, and custom recursive operators taken from the Clac project from the 15-122 course at Carnegie Mellon University.
202 parts5 - 4 layers192 × 137.2 mm
- 2 layers95.1 × 72.1 mm
- 4 layers220 × 170 mm
Arpeggiator
EwoudVV/arpeggiator
12-note analog arpeggiator with a 1/2/3 octave range, custom pcb and printed case
360 parts3 - 2 layers284.9 × 96.5 mm
- 2 layers50 × 50 mm
