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 74HC86D
134 boardsBoards in 106 GitHub repositories, designed in KiCad, that use the 74HC86D by Nexperia (-40℃~+125℃ 1.5V~4.2V 20ns@6V,50pF 2V~6V 2uA 4 5.2mA 5.2mA 500mV~1.8V 74HC Series XOR Gate SOIC-14 Logic Gates ROHS). See how each wires it, with its parts, size, README and files; the 74HC86D’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 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 layers69 × 74 mm
- 2 layers82.5 × 22.4 mm
Window Sensor
MakerMeik/Window-Sensor
Here you will find all the files you need to build an ESP8266-based window sensor whose battery will last for several years. Have a look at my video on Youtube: https://youtu.be/vxbuO1zWo3w
19 parts67 - 4 layers188.9 × 92 mm
MegaCD
Board-Folk/MegaCD-Main-BD
Reproductions of main board PCBs for Sega's Mega CD/Sega CD add-on for the Mega Drive/Genesis console.
132 parts60 - 2 layers100 × 100 mm
- 2 layers208.9 × 170.8 mm
8-Bit CPU 32k
slu4coder/Minimal-UART-Computer-3
Version 3 of my educational DIY TTL computer built around a UART serial interface - now with blinkenlights!
207 parts54 - 2 layers
ArduinoPC
slu4coder/Arduino-Nano-PC
1 Arduino Nano + 1 Logic Chip = Personal Computer with VGA and PS/2
17 parts49 - 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 layers208 × 110 mm
- 2 layers50 × 70 mm
- 2 layers178 × 711 mm
- 2 layers91.4 × 101.6 mm
Vector gen
qu1j0t3/vector_gen
In first version of PCB there is a bug that leaves U6 Vss/Vdd pins floating and U5 Vdd floating:
103 parts13 - 4 layers306 × 244 mm
- 2 layers100 × 100 mm
ADAT IO x4
freeDSP/freeDSPx-ADAT-IO-x4
The freeDSPx ADAT IO x4 is a digital IO expansion board for the freeDSP family. It provides 4 Lightpipe(I2S) inputs and 4 Lightpipe outputs via single Toslink Cable.
124 parts10 - 2 layers235 × 176.5 mm
Cpu
Edgeworth/memepu
cmake -DUSEAFL=yes -DCMAKEBUILDTYPE=Release $PFX/verymeme AFLSKIPCPUFREQ=yes AFLPRELOAD=/usr/local/lib/afl/libdislocator.so \ afl-fuzz -m 1024M -i $PFX/verymeme/testdata/memelang/parsing -o memelangfuzz \ -x…
286 parts9GPL-3.0 - 2 layers83.8 × 48.3 mm
- 2 layers67 × 77 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 - 2 layers155.1 × 156 mm
- 2 layers132.5 × 105.7 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