Re: Remote triggering an Apple II

Simon D. Williams wrote:
I have a project in mind that requires having one or more A2s triggered
via a footswitch and I'm wondering ig the following setup will do the job:

------ -=-
Apple | PB0 <--------/switch/-------- POS | |
Game | | | 4.5 V Battery
Port | GND ------------------------> NEG | |
------ ---

You can do it without the battery, since +5 is available on the
game connector:

+5v >----------+
|
o |
|- Switch
o |
|
PB0 >----------+
|
/
\ 220 ohms
/
\
|
Gnd >----------+

If you're triggering more than one Apple, you only need to connect
to the +5 of one of them, and will only need one 220 ohm resistor.
In other words, just run the "PB0" and "Gnd" lines to the other
computers.

-michael

Music synthesis for 8-bit Apple II's!
Home page: http://members.aol.com/MJMahon/

"The wastebasket is our most important design
tool--and it is seriously underused."
.

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