[TI-H] Re: Speaker
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[TI-H] Re: Speaker
How much money do you think i have? I've got ziltch. I can't even buy a nice
little cheap microchip...
----- Original Message -----
From: "Peter-Martijn" <hbyte@hbyte.net>
To: <ti-hardware@lists.ticalc.org>
Sent: Saturday, May 03, 2003 9:54 AM
Subject: [TI-H] Re: Speaker
> If you're smart, use a PIC16F628, it has built-in UART, and is cheaper
than
> a 16F84 while 100% pin-compatible
> --peter-martijn
> ----- Original Message -----
> From: "Tim Comport" <thetechplace@lycos.co.uk>
> To: <ti-hardware@lists.ticalc.org>
> Sent: Thursday, May 01, 2003 3:07 PM
> Subject: [TI-H] Re: Speaker
>
>
> > >From memory, Cullen began work on connecting a PS/2 keyboard
> > to the calc long before TI even hinted of releasing an external
> > keyboard (? I wonder ?). Anyway, I think this is a great idea and
> > maybe very useful if you used a 'portable' keyboard; such
> > as a stowaway or rollable keyboard. In fact, after reading of Cullen's
> > efforts I began work on a version which made use of the 89's silent
> > link capabilities (so that you wouldn't need any on-calc software);
> > but since I bought a PPC I haven't really done any more work on this.
> > I completed an 'expensive' prototype and had the intentions of
> > converting
> > my design to use a cheap PIC. You can see my progress on my site at
> > thetechplace.cjb.net
> > if you want the source for the BASIC Stamp e-mail me.
> >
> > Good luck with your efforts,
> >
> > Tim
> >
> >
> > -----Original Message-----
> > From: ti-hardware-bounce@lists.ticalc.org
> > [mailto:ti-hardware-bounce@lists.ticalc.org] On Behalf Of Nick Peaden
> > Sent: Tuesday, 29 April 2003 9:31 AM
> > To: ti-hardware@lists.ticalc.org
> > Subject: [TI-H] Re: Speaker
> >
> > OK just wondering. I had soldered one together and remember hearing that
> > the
> > speaker was purely inductive and not good for the link port, but I
> > haven't
> > had any troubles... BTW... has anyone read up on the TI-PS/2 Keyboard
> > connection by michael vincent and Cullen Logan. Tech docs are at
> > http://www.psikan.com
> > ----- Original Message -----
> > From: "Nivek" <nivek_ent@yahoo.com>
> > To: <ti-hardware@lists.ticalc.org>
> > Sent: Monday, April 28, 2003 6:44 PM
> > Subject: [TI-H] Re: Speaker
> >
> >
> > > i used to make and sell speakers for TI calcs, what i did was bought a
> > > 3.4mm? (whatever size the plug is on the link cables) from Radio Shack
> > > and connected them to a Piezo buzzer, i didn't have any problems.
> > hope
> > > this helps
> > >
> > > Kevin
> > > --- Nick Peaden <Nitrocloud@earthlink.net> wrote:
> > > > I've heard that using a small broken headphone for a calc speaker
> > > > (I'm on 89) would cause damage to the link port due to purely
> > > > inductive loads. Is this true? Is a piezo buzzer better? Should I
> > > > make a TI-89 TSR program driver for the PS/2 keyboard connection
> > that
> > > > Cullen Logan and Michael Vincent have made? Why haven't I heard much
> > > > from this list?
> > >
> > >
> > > =====
> > > Nivek_ent@yahoo.com
> > > Track where your money goes! See Where It's Been!
> > http://www.WheresGeorge.com
> > >
> > > __________________________________
> > > Do you Yahoo!?
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> > >
> >
> >
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>
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