2 layers44.4 × 96.5 mm
Personality
osiweb/Hardware
There are similar adapter boards for sale through various sources. This design based only on the referenced article.
8 parts13
2 layers32.4 × 43.8 mm
Apple2-kbd adapter
osiweb/Hardware13There are similar adapter boards for sale through various sources. This design based only on the referenced article.
- Size
- 32.4 × 43.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 8
- Nets
- 20
- Pads
- 46
- Tracks, vias
- 108, 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 31 Mar 2015
- Updated
- 21 Jun 2026
Overview
Apple2-kbd adapter is an open-source printed circuit board by osiweb, from the osiweb/Hardware repository on GitHub. It is a 2-layer board of 32.4 × 43.8 mm with 8 parts on 20 nets, routed with 108 tracks and 4 vias.
Its parts include 4 connectors, 2 switches and 1 resistor. It belongs with the interfaces and adapters boards of this library.
README
new/apple-kbd-adapter/README.mdApple 2 keyboard adapter for Apple 1 computer
This is a simple adapter to connect an Apple 2 compatible keyboard to an Apple 1 computer. The pinouts were obtained from the article Using an Apple II Keyboard with an Apple 1 Computer at Randomvariations.com.
There are similar adapter boards for sale through various sources. This design based only on the referenced article. Any similarities to alternative adapters is coincidental and due solely to the simplicity of the design, and obvious requirements such as the desire for reset and clear buttons mounted on the board and remotely.
Parts
8| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | SW_SPST | Button_Switch_THT:SW_Tactile_Straight_KSL0Axx1LFTR | SW1, SW2 |
| 1 | 3.3k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | Apple 1 | Package_DIP:DIP-16_W7.62mm_Socket | J1 |
| 1 | Keyboard | Package_DIP:DIP-16_W7.62mm_Socket | J4 |
| 1 | ~CLEAR_SCREEN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | ~RESET | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
The 7 most common of 8 parts.
More from osiweb/Hardware
1Similar boards
- 2 layers20.5 × 24.8 mm
- 2 layers14.4 × 10.5 mm
OSO SWAB B1-00 Sensor Watch Accelerometer
joeycastillo/Sensor-Watch
A board replacement for the classic Casio F-91W wristwatch
8 parts2.1k - 2 layers7.9 × 39.1 mm
Brain board STM32F407 SD wing it
rusefi/rusefi
rusefi - GPL internal combustion engine control unit
8 parts1.2k - 2 layers59.9 × 25.7 mm
Buffer
hoglet67/RGBtoHDMI
Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI
8 parts1kGPL-3.0 - 2 layers52 × 12.6 mm
USB
shanteacontrols/OpenDeck
A platform for building interactive control and sensing devices using MIDI and OSC built with Zephyr RTOS.
8 parts960Apache-2.0 - 2 layers87.5 × 48.5 mm
7 input macropad
hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!
8 parts915 - 2 layers36.2 × 63.1 mm
PicoMemcard pico
dangiu/PicoMemcard
Emulating PSX Memory Card (or controller) using a Raspberry Pi Pico
8 parts694GPL-3.0 - 2 layers36 × 10 mm
PCB4-PWR BTN Rev.A
OLIMEX/DIY-LAPTOP
Do It Yourself Open Source Hardware and Software Modular Hacker's Friendly Laptop
8 parts578Apache-2.0
Questions
How big is the Apple2-kbd adapter PCB?
It measures 32.4 × 43.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Apple2-kbd adapter use?
8 parts. 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 Apple2-kbd adapter KiCad files?
From the osiweb/Hardware repository on GitHub, at the commit this page was made from: the board is new/apple-kbd-adapter/apple2-kbd-adapter.kicad_pcb and its schematic new/sol20/personality/hardware/personality.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Apple2-kbd adapter design in my own project?
Its repository states no licence, so its author keeps all rights: ask osiweb before reusing the design.