Homebrew PS/2 Keyboard reader
Posted: 19 Jul 2014 20:55
I was Mooooching around the web... and found some interesitng low cost PS/2 keyboard interface/decoders..
PS/2 Encoder interfaces industry standard PS/2 PC-compatible keyboards to devices requiring TTL-level RS232, parallel data , and/or PC XT signaling. All ASCII key sequences are decoded, as well as common keyboard sequences like “CTRL-ALT-DEL”. To provide maximum flexibility for various uses while retaining ease of operation, the unit’s configuration can be modified in-circuit using the PS/2 keyboard itself.
Uses ATmega MCU
http://www.go4retro.com/products/ps2-encoder/
And
AT89C2051 schematic
http://circuit-diagram.hqew.net/IBM-PC- ... 20848.html
These look like they could be intergrated into one's own homebrew DIY designs ?
PS/2 Encoder interfaces industry standard PS/2 PC-compatible keyboards to devices requiring TTL-level RS232, parallel data , and/or PC XT signaling. All ASCII key sequences are decoded, as well as common keyboard sequences like “CTRL-ALT-DEL”. To provide maximum flexibility for various uses while retaining ease of operation, the unit’s configuration can be modified in-circuit using the PS/2 keyboard itself.
Uses ATmega MCU
http://www.go4retro.com/products/ps2-encoder/
And
AT89C2051 schematic
http://circuit-diagram.hqew.net/IBM-PC- ... 20848.html
These look like they could be intergrated into one's own homebrew DIY designs ?