Pil-io serial and remote keyboard

[J-F Garnier]

There is maybe a workaround (to be tested), using the existing Service Request (SRQ) capability of the PIL-IO.

To use it, you will have to use an extra logic signal from the Arduino to generate a SRQ signal for each character by pulsing this line low for maybe 100-200ms (i.e. long enough for the HP71 to get it -to be tested).
This signal should be connected to the IO2 line of the PIL-IO, and the PIL-IO must be put in the handshake/SRQ mode by sending a "LOCAL :PILSER1" from the HP71. See details in the PIL-IO documentation (last page).

Let me know!

J-F