HP-IL to Arduino bridge

[Trancheterriere]

Tobie, I would love to. But I need to check the WAF.

Bob, here is the code (Ok, It's C++ code from an hardware guy...):

  HP-IL_GPIO_Shield.zip (Size: 14.27 KB / Downloads: 113)
You can even control an SPI interface by toggling the pins directly from the HP-71B.
Suppose your CLK in pin 2 and DATA in pin 3, sending 0x77 would be:
OUTPUT :1;"cdCcDCcDCcDCcdCcDCcDCcDC"

Didier, for the HP-IL shield, I don't want to handle all the logistic. With the agreement of J-F Garnier, I can provide the eagle files and the BOM to any one interested in assembling the board for themselves or for others. The HP-IL to uart converter device that you see on the board is of course coming from J-F.

Patrick