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'[PIC]: Making a driver circuit for a display... Sh'
2002\09\17@093501 by Magnus von Rosen

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Hi,

for a project in my friends VW buggy (onboard computer), I need a
character display. They are expensive. We have no money, as we are
students. :)

However, I do have access to 16 character VFD-displays without drivers.
I mean, there is just the display with the pins sticking out, there are
no electronics what so ever.
I can get them for $3...
The same but with ASCII driving is about $60 here... yuck.. :)

What I would like to know, is this a reasonable project for a
PIC-newbie?
My experience so far is that of counting R/C servo signals i assembly,
and fading LEDs in C. :)

Thanks for any input and pointers as to what PIC to use and how to
design the software.

Best greetings from Sweden
Magnus v Rosen

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2002\09\17@102604 by Wouter van Ooijen

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> However, I do have access to 16 character VFD-displays
> without drivers.
> I mean, there is just the display with the pins sticking out,
> there are
> no electronics what so ever.
> I can get them for $3...
> The same but with ASCII driving is about $60 here... yuck.. :)
>
> What I would like to know, is this a reasonable project for a
> PIC-newbie?
> My experience so far is that of counting R/C servo signals i assembly,
> and fading LEDs in C. :)

I would vote no. Browse around for a 2x16 LCD display, phanderon used to
have them for $7.

Wouter van Ooijen

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Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products

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2002\09\17@115908 by Ed Edmondson

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Magnus V. Rosen,

If you contact the local Noritake representative I am sure they would love to
provide you with a sample 20 by 2 VFD display unit. These units were designed
to be a drop in replacement for the 20 by 2 LCD displays on the market. The
units have a built-in power supply, character generator, drivers and
interface logic and are powered from a plus 5 volt DC power source. If you
are unable to find one for free let me know and I'll see if I have any left
to send you.

If you plan to use it in an automotive application you may want to stay with
VFD. As far as the PIC is concerned I too am just getting started in the PIC
realm. The other PIC Listers can give you a better idea based on what you are
attempting to construct.

Ed

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2002\09\17@131417 by Mike Singer

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Wouter van Ooijen wrote:
> .Browse around for a 2x16 LCD display, phanderon
> used to have them for $7.

AMPIRE:

AC082AGB-H   7.52$
AC082AGJLY-H   9.52$
AC161AGA-H   7.78$
AC161AYILY-H   8.00$
AC161BGA-H   6.65$
AC161BYJLY-H   14.72$
AC162AYJLY-H   8.90$
AC162BGILY-H   8.50$
AC162BGJLY-H   9.00$
AC162DGILY-H   9.36$
AC162EYA-H   12.92$
AC162EYILY-H   12.24$
AC162EYJLY-H  12.24$
EI4080   2.50$
TI4080   2.50$

---
Just my 2 wooden "kopeyka" :-)

Mike.

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