|
AT89C2051 dip20 |
x 1 | |
|
2PCS. 1μF capacitors |
x 2 | |
|
2PCS. 33pF capacitors |
x 2 | |
|
11.0592 MHz crystal |
x 1 | |
|
2 x 8 PIN FEMALE HEADER |
x 1 | |
|
1X FEMALE PS/2 CONNECTOR |
x 1 |
AMIGA 500 PS/2 KEYBOARD ADAPTER
AMIGA 500 PS/2 KEYBOARD ADAPTER
This is a tested and working circuit.
Do not be sad if your Amiga 500 keyboard is not working. AMIGA 500 PS/2 KEYBOARD ADAPTER will help you to use your Amiga 500 with your PS/2 or IBM-AT type keyboard.
This keyboard adapter also have a Reset function with 3 keys. (left windows + right windows + CTRL)
This circuit does not support all of the USB keyboards, but some of USB keyboards may work with a simple, cheap "USB to PS/2" converter.
To make this circuit you need to download .hex file and program it into AT89C2051.
AT89C2051 HEX file download link:
https://archive.org/download/a500ps2kyb/a500ps2kyb.zip
COMPONENTS:
AT89C2051
2PCS. 1μF capacitors
2PCS. 33pF capacitors
11.0592 MHz crystal
2 x 8 PIN FEMALE HEADER
1X FEMALE PS/2 CONNECTOR
Some Amiga 500 mainboards keyboard connector pins order can be different, if adapter does not work at position "A" then please try position "B".
For referal please look at the images.
14.10.2020: GERBER files updated.
Optional "6pin female PCB type mini DIN connector" added.
Thanks to Martin Clausen for this project.
Gerber files can be changed at any time. Before paying for the PCBs, be sure to update your orders!
Have Fun
Thank you.
AMIGA 500 PS/2 KEYBOARD ADAPTER
*PCBWay community is a shared platform and we are not responsible for any design issues.
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