[ELECTRON] Arduino for beginners - Re: new member Brian

[lucie potter]

count me in!
Lucie

> From: fy81le at googlemail.com
> Date: Wed, 24 Jun 2009 11:55:25 +0100
> To: members at electronclub.org
> Subject: Re: [ELECTRON] Arduino for beginners - Re: new member Brian
> 
> I'd be very interested in learning some more about Arduinos too btw.
> Roy Mohan Shearer
> (post-)Industrial Designer
> 
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> 
> 
> 2009/6/23 Brian Hewitt <brianhewitt1 at gmail.com>:
> > Thanks. I have seen something like that in other tutorials, although the way
> > it was referred to was different. That definitely makes sense.
> >
> > One other question: in the arduino sketches, when you're using #include to
> > call library scripts (like the LCD files, for example), do you have to set
> > the path to library files or is that set up as a default path somewhere in
> > the development environment already?
> >
> > Brian
> >
> > On 23 Jun 2009, at 22:05 | 23 Jun 2009, Ross Feilen wrote:
> >
> >> Hi Brian,
> >>
> >> From memory Vo is the contrast voltage which can be anything between 0 and
> >> 5v.  Usual way of connecting this is to have a 10k or thereabouts pot
> >> which
> >> lets you vary the voltage between 5v and ground. There is an example
> >> wiring
> >> diagram on the datasheets for RS product
> >>
> >> http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct
> >> &R=2143244
> >>
> >> If you don't supply the correct voltage to this pin by using the pot
> >> trimmer
> >> then either the contrast will be too light (nothing displayed) or you'll
> >> see
> >> 'blocks' as the contrast will be too dark. You've probably seen this
> >> before
> >> in things like personal organisers, graphic calculators etc.
> >>
> >>
> >> Ross
> >>
> >>
> >>
> >> On 23/6/09 20:34, "Brian Hewitt" <brianhewitt1 at gmail.com> wrote:
> >>>
> >>> I've done the basic blinking and fading light things on the arduino and
> >>> now
> >>> I'm trying to control a 16x1 LCD display. I've seen some tutorials on the
> >>> web,
> >>> and I know that there's an LCD script library that comes with the
> >>> development
> >>> environment. I have the example (usual "hello world") script and hooked
> >>> it up
> >>> with all the pins connected correctly, but it's not working (well, the
> >>> back
> >>> light comes on, but that's it...).
> >>>
> >>> I'm stumped about one of the pins on the LCD I have, which is not
> >>> mentioned in
> >>> any of the tutorials - the spec sheet calls it Vo: the supply voltage for
> >>> driving the LCD (separate from the +5v supply voltage for the logic). The
> >>> specs say it takes a variable voltage, but +1v typical. Anyone know
> >>> anything
> >>> about how or if that should be connected?
> >>>
> >>> Cheers!
> >>>
> >>> Brian
> >>
> >>
> >>
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