Pil-io serial and remote keyboard

[coitboy2000]

Hi all

I have been spending some time playimg with the arduino/tft and pil-io which has been good fun. I picked up an ascii video terminal from http://geoffg.net/terminal.html and it works well. I combine the ascii video terminal with the pil-io and have a working video terminal using the vga output. I do see all the hp-71b escape characters but i can put up with that. All the ascii details was discussed previously https://www.hpmuseum.org/cgi-sys/cgiwrap...read=93744

I have now connected a keyboard to the ascii video terminal and added a logic level converter to go from 3.3v to 5v for the rx and tx on the Pil-io. The keyboard is a usb one and so I use a usb to ps/2 converter. I have used both versions of the keyboard.lex and KEYBOARD IS:. When I press a key on the keyboard is sends the serial data from the tx of the ascii video terminal through the level converter to the pil-io and on to the hp-71b. Unfortunately the hp-71b does not react to the keyboard data UNTIL i press the enter key on the hp-71b. What i type on the keyboard then shows on the ho-71b lcd ? It also appears only 12 characters are received before a new line is started with the remaining characters etc. I have used an arduino and can confirm the data is being sent to the pil-io perfectly ?

Any thoughts on what may be happening appreciated.

Have any of the Arduino users out the implemented a virtual rs232 device ? That may be my next course of action.

Regards

Richard