My project is using a 16F877. I need to hook 12 switches/buttons to it.
These switches/buttons are 4 ft away. I have 4 pins on the 16F877 that are
still not used. Would it be best to use a multiplexer chip or IC2 to another
Pic reading the switches and buttons. Will a multiplexer allow more than one
switch to be pressed at the same time? Has anyone done this that has
examples?
Many Thanks
Wrong Way Ray (Raymond Choat)


----- Original Message -----
From: "Sam Linder" <SamL@IN-INC.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Wednesday, July 11, 2001 7:46 AM
Subject: Re: [PIC]: Dallas DS1305


> John:
> I've attached a zip file containing the Dallas DS1305 code to this
message.
> It contains 4 files (RTCcode.c, rtc.h, pc16f877.8, p16f877.h).
>
> For other PIC listers who may be uncomfortable with opening zip files from
> people you don't know, I don't blame you and I suggest you simply delete
> this message.
>
> John and any others interested in the code - if you prefer I resend the
> files in plain text directly to you, please let me know and I will be glad
> to do so.
>         Sam....
>
> -----Original Message-----
> From: John [mailto:jsand@PIXIE.CO.ZA]
> Sent: Wednesday, July 11, 2001 5:32 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [PIC]: Dallas DS1305
>
>
> Hello Sam & PIC.ers,
>
> If you feel free to post it & it's not too long, please.
> Otherwise you might send it direct to me.
>
> I think you'll be saving me a lot of time/trouble in
> my AD7715 job.
>
>         best regards,   John
>
>
> >Date:    Tue, 10 Jul 2001 08:31:29 -0700
> >From:    Sam Linder <SamL@IN-INC.COM>
> >Subject: Re: [PIC]: Dallas DS1305
> >
> >I've got some SPI bit-banged code for the Dallas DS1305 RTC on a
PIC16F877.
> >If you're interested let me know and I'll post it to the list.
> >        Sam....
>
> e-mail from the desk of John Sanderson, JS Controls.
> Snailmail:          PO Box 1887, Boksburg 1460, Rep. of South Africa.
> Tel/fax:            Johannesburg  893 4154
> Cellphone no:   082 741 6275
> email:                jsand@pixie.co.za
> Manufacturer & purveyor of laboratory force testing apparatus, and related
> products and services.
>
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>

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