In article <01bd0ef3$be656600$b04206d1@lipidex.ma.ultranet.com>, Jason
Wolfson <jason@LIPIDEX.COM> writes
>Does anyone have any clever, low parts count
>methods of multiplexing 3 pushbuttons onto
>2 port pins?
>
>Thanks
>Jason Wolfson
>Lipidex Corp
>
>jason@lipidex.com
Easy,

Switch one connects to pin one.
Switch two connects to pin two.

Switch three connects to both pin one and two, each connection via an
IN4148 diode.

Would have done it in asci picture but my art is crap:-)

--
Philip Martin   ----------------------------------------------------------------
Royal Quays             If at first you don't succeed, try again. Then quit:
North Shields.          no use being a damn fool about it !
                                                        W.C. Fields
email philip@philmart.demon.co.uk