hello,I want to ask question
http://seb.riot.org/appleII/keyboard.sml
I want to investigate this article.but when I translate this one for chinese.I don't understand something.comment describe 5V
if this IC PIC16F630 obtain 5V.do I need to connect line to 6-pin Mini-DIN ?and what is mean for this schematics?5V C1 GND
hope can get every expert respond.thx
5v = 5 volts
C1= Capacitor #1
GND=Ground
Good luck with your project.
Mutant Pie
If you don't want to make one, Vince Briel sells a PS/2 adapter with replacement encoder:
http://www.brielcomputers.com/wordpress/?cat=9
I have a couple and they're very useful.
There is an other PS2 to Apple ][ project:
http://www.willegal.net/appleii/appleii-kb-int.htm
PS: Does anybody know a solution for a //e?
cu
Georg
I looked at doing a version for the IIe, but dropped the effort when I realized the keyboard encoder for the IIe was simply moved to the motherboard. These encoders poll the keyboard matrix with a -12 volt strobe. I didn't investigate much further, as I figured that handling the -12 volt strobe input and output with a micro-controller would require voltage level shifting that would increase the HW cost and complexity to the point that it wouldn't be worth the trouble.
Regards,
Mike W.
Hello Mike,
these are bad news 
.
I was thinking about doing a test on a breadboard with an AVR. But you are right with the -12V.
I did not see the -12V going to Pin 27 of the keyboard controller.
Therefore connecting to the keyboard header is not the way.
But did you think about replacing the keyboard controller with a PCB with an PS2 interface?
On brielcomputers it was done with the original Apple ][ keyboard controller.
cu
Georg