Look at this beauty. It's an LPFK by IBM. A "lightable programmable function keyboard"
normally attached to a 5080 IBM graphics card for CAD purposes on RS/6000 machines
running AIX. The IT-department of the University of Karlsruhe threw it away.
i found the protocol in ancient
ibm aix sources.
Just cut off the 8-pin AIX connector, and solder a USB-to-serial convertor to it that talks rs232-levels (±16V). the power consumption with all leds lit is around 700mA.
Just cut off the 8-pin AIX connector, and solder a USB-to-serial convertor to it that talks rs232-levels (±16V). the power consumption with all leds lit is around 700mA.
orange +5V black +5V green gnd white gnd red tx grey rxSerial communication is easy: 9600 8O1 and the following commands:
pc -> lpfk 01 reset 08 enable 09 disable 94aabbccdd set leds lpfk -> pc 00..1f keypress 80 94 command received failed, retry 81 94 command received ok⎆home ⎆top