
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.

An ESP32 software design for controlling visors and similar
MAX VISOR PCB is an open-source printed circuit board by zgrate, from the zgrate/ProtOs repository on GitHub. It is a 2-layer board with 52 parts on 45 nets, routed with 1,050 tracks and 130 vias.
It is built around the 74HC245D.
ESP32 Software for controlling visors

| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R_LED, R_LED, R1K1, R1K1, R1K2, R1K2, R1K3, R1K3, R1K4, R1K4, R2K1, R2K1 |
| 8 | Conn_01x02_Female | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BUTTON, BUTTON, BUZZER, BUZZER, POWER, POWER, POWER_EXT, POWER_EXT |
| 4 | Conn_01x05_Female | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | MAX1, MAX1, MAX2, MAX2 |
| 4 | Pin_D0.7mm_L6.5mm_W1.8mm_FlatFork | Connector_Pin:Pin_D0.7mm_L6.5mm_W1.8mm_FlatFork | , , , |
| 2 | kicad-library-master:ESP32-DEVKITV1 | , | |
| 2 | MAX_VISOR_PCB:owo_on-leyer | , | |
| 2 | 74HC245 | Package_SO:SO-20_12.8x7.5mm_P1.27mm | 74AHCT245, 74AHCT245 |
| 2 | Conn_01x03_Female | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | WS_LED, WS_LED |
| 2 | Conn_01x03_Female | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | FAN_CONTROL, FAN_CONTROL |
| 2 | Conn_01x06_Female | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | , |
| 2 | Conn_01x06_Female | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | SD, SD |
| 2 | Conn_02x04_Counter_Clockwise | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | HEADER, HEADER |
| 2 | Pin_D1.0mm_L10.0mm | Connector_Pin:Pin_D1.0mm_L10.0mm | , |
| 2 | Pin_D1.3mm_L11.0mm_LooseFit | Connector_Pin:Pin_D1.3mm_L11.0mm_LooseFit | , |
| 2 | SD_Card | kicad-library-master:PinHeader_1x09_P2.54mm_Vertical_SD | SD, SD |
| 2 | SW_DIP_x06 | Button_Switch_THT:SW_DIP_SPSTx06_Slide_9.78x17.42mm_W7.62mm_P2.54mm | SWITCH, SWITCH |

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.

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

crmaykish/mackerel-68k
A series of single-board Motorola 68k computers with support for modern Linux

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
Pixelvation/Pixelvation
This GitHub repository is the current home of Pixelvation and will be updated whenever there's some significant new development.

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.


slu4coder/Minimal-UART-Computer-3
Version 3 of my educational DIY TTL computer built around a UART serial interface - now with blinkenlights!
52 parts, built around the 74HC245D. 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.
From the zgrate/ProtOs repository on GitHub, at the commit this page was made from: the board is schematics/simple_visor_board/MAX_VISOR_PCB.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask zgrate before reusing the design.