2 layers38 × 36 mm
2 layers22 × 34 mm
Key tap88
jmA500/Key-Tap10Key-Tap. Use keyboard hotkeys to configure internal hardware extensions in the Amiga 500.
- Size
- 22 × 34 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 13
- Nets
- 24
- Pads
- 80
- Tracks, vias
- 167, 9
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 13 Mar 2021
- Updated
- 29 Mar 2021
Overview
Key tap88 is an open-source printed circuit board by jmA500, from the jmA500/Key-Tap repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 22 × 34 mm with 13 parts on 24 nets, routed with 167 tracks and 9 vias.
It is built around the ATMEGA48PA-AU. Its parts include 5 connectors, 4 capacitors, 1 resistor and 1 IC. It belongs with the keyboards and input and retro computing and games boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdKey-Tap
This little gadget can listen to the keyboard of an Amiga 500 and catch certain hotkeys. These hotkeys can be used to drive output pins that can configure internal extentions.
Please have a look at the project website:
https://www.jm27.de/key-tap-a-hardware-configurator-for-the-amiga-500/
License
All material is freely usable under the GPL v2Directory structure
* hardware: Contains Eagle PCB files
* firmware: Pre-built hex-files for different MCUs
* src: the C-source code
* doc: DocumentationParts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100n | discrete:C_0805 | C1, C2, C3, C4 |
| 2 | SolderJumper_2_Open | Conn2:SMD-JUMPER | JP1, JP2 |
| 1 | 4k7 | discrete:R_0805 | R1 |
| 1 | AMIGA-Keyboard-PINHEAD | Socket_Strips:Socket_Strip_Straight_1x08_Pitch2.54mm | J5 |
| 1 | AMIGA-Keyboard-PINHEAD | Pin_Headers:Pin_Header_Straight_1x08_Pitch2.54mm | J4 |
| 1 | AVR-ISP-6x | Pin_Headers:Pin_Header_Straight_2x03_Pitch2.54mm | J1 |
| 1 | AtMega48PA | Housings_QFP:TQFP-32_7x7mm_Pitch0.8mm | U1 |
| 1 | CONN_01X08 | Pin_Headers:Pin_Header_Straight_1x08_Pitch2.54mm | J3 |
| 1 | UART-CON-4 | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J2 |
Questions
How big is the Key tap88 PCB?
It measures 22 × 34 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Key tap88 use?
13 parts, built around the ATMEGA48PA-AU. 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 Key tap88 KiCad files?
From the jmA500/Key-Tap repository on GitHub, at the commit this page was made from: the board is hardware/pcb-atmega88/key-tap88.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Key tap88 design in my own project?
Its repository publishes it under the GPL-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
Similar boards
- 2 layers22.1 × 22.1 mm
- 2 layers40 × 20 mm
- 2 layers74.9 × 49.5 mm
- 2 layers35 × 29 mm
MagSpoofTC
samyk/magspoof
A portable device that can spoof/emulate any magnetic stripe, credit card or hotel card "wirelessly", even on standard magstripe (non-NFC/RFID) readers.
13 parts4.2k - 2 layers20.6 × 23.6 mm
AO-03 signal amplifier
fossasia/pslab-scripts
Pocket Science Lab - Scripts for Sensor Experiments
13 parts1.6kApache-2.0 - 2 layers47 × 35.6 mm
- 2 layers95 × 95 mm
Cube batteryboard
willem-pennings/balancing-cube
A cube that balances itself in a corner or edge using reaction wheels
13 parts1.1kGPL-3.0