Dummy needs LCD tutorial,

[TK5EP]

Hi Melanie and Luciano,

Nor good brakes or wall, simply wanting to display wind speed coming from an anemometer.
I understand that i have to format the data so it overwrites the previous one.
Melanie, no difference in your code if kmh<100 or kmh<10 ?

What about displaying a moving cursor about half the wide of a full black character (ASCII 255 as you mentionend)

I want to display the wind speed in full character in km/h and/or a sliding narrow cursor one the second line under a scale on the 1st one.

Melanie, is there a tutorial or an good explanation about the LCD display ?

Thanks for your help.

[Melanie]

No tutorial - just program, play and learn from doing.

Assuming you'll never exceed 255 km/h wind speed (byte variable) and you don't live in Louisianna...

My example right-justified... so the maximum you can display is three characters (100-255 km/h).

If your spped is less than 100 km/h, then you prefix with one blank... this covers 10-99 km/h.

If your speed is less than 10km/h, then you need to prefix with two blanks (0-9 km/h).

Using this method, you get a stationary "km/h" label with the digits moving to the left. A lot neater than digits moving to the right with the "km/h" label flapping about behind them.

[TK5EP]

Well, in Louisinia my anemometer would be broken. It's limited to 180 km/h !

OK, i understand it now. My 2nd question was because i saw no difference between both lines, i think you forgot a space between " " in the line for kmh<10. Do i have it right ?

Thanks for your help, appreciated it.
Patrick.

No tutorial - just program, play and learn from doing.

Assuming you'll never exceed 255 km/h wind speed (byte variable) and you don't live in Louisianna...

My example right-justified... so the maximum you can display is three characters (100-255 km/h).

If your spped is less than 100 km/h, then you prefix with one blank... this covers 10-99 km/h.

If your speed is less than 10km/h, then you need to prefix with two blanks (0-9 km/h).

Using this method, you get a stationary "km/h" label with the digits moving to the left. A lot neater than digits moving to the right with the "km/h" label flapping about behind them.

[TK5EP]

Merci Alain

I'm starting with PICs and it's my first project. I have some good experience in BASIC but have to adapt my knowledges to Picbasic.

I use a demo version (PROTON lite) but i'm thinking to change to Melabs, the forum and support seems to be much better !
Unfortunately, the Melabs demo allows only 35 lines... and the registered version is a bit expensive for an occasional project !
With 35 lines you have to be a bit tricky....

Greetings from sunny Corsica,

[Melanie]

> the (MeLabs) forum and support seems to be much better

Now why do you say that? Just curiosity (though it did bring a smile when I read that). At a glance, they have ten-times the amount of activity that this forum has for roughly the same number of members...

[TK5EP]

Well, i got an answer quickly on this one, and found more infos in the archives for my level than on the other one.
I saw more posts here since one week i'm interested in PICs.

Maybe a bad guess ? But keep smiling !

> the (MeLabs) forum and support seems to be much better

Now why do you say that? Just curiosity (though it did bring a smile when I read that). At a glance, they have ten-times the amount of activity that this forum has for roughly the same number of members...

[Luciano]

* * *
Custom Characters tutorial:
http://www.parallax.com/dl/docs/cols...1/col/nv32.pdf

LCD Character Generator: (Freeware)
http://www.parallax.com/dl/sw/lcdcc.zip

* * *

Writing custom characters to LCD display:
http://www.picbasic.co.uk/forum/showthread.php?t=242


Luciano

[TK5EP]

Ciao Luciano,

Grazie mille !

That was exactly what i was looking for !
This forum seems to be the right place for me... ;-)

Thanks a million to all of you for your kindness.

* * *
Custom Characters tutorial:
http://www.parallax.com/dl/docs/cols...1/col/nv32.pdf

LCD Character Generator: (Freeware)
http://www.parallax.com/dl/sw/lcdcc.zip

* * *

Writing custom characters to LCD display:
http://www.picbasic.co.uk/forum/showthread.php?t=242


Luciano

[Dick Ivers]

Hi Darrell,

I love the bar graph display. Can it be set up to do the following:

1. A text line showing the current temperature in deg C with 0.1 deg resolution. (Temperature data from a thermistor via a PIC a/d data channel.)

2. Several bar graph lines showing (a.) the current temp. and (b.) the temp. as recorded in the preceeding 30 second intervals; with as many bars as is practical.

3. As a new data bar is entered the oldest bar drops off.

Possible?

[NavMicroSystems]

> the (MeLabs) forum and support seems to be much better

Now why do you say that? Just curiosity (though it did bring a smile when I read that). At a glance, they have ten-times the amount of activity that this forum has for roughly the same number of members...

Me as well had a smile on my face...


I don't want to start yet another "heated debate",
but to be fair,
I'm sure if Patrick had provided a bit more of information about his Project on "the other" Forum
he would have got some better response.

[mister_e]

you can't imagine MY smile... period!

[TK5EP]

Sorry if i bothered someone, it was not my intention... :-(
My apologies if i did !
Some of you are on both forums and answered me on both.

Anyway, i will survey both forums and post on both. ANY help is welcome.

Patrick,

Me as well had a smile on my face...
I don't want to start yet another "heated debate",
but to be fair,
I'm sure if Patrick had provided a bit more of information about his Project on "the other" Forum
he would have got some better response.

[mister_e]

Sorry if i bothered someone, it was not my intention... :-(

Oh no you didn't. You just raise an interesting fact wich make some people here laugh and some other cry. No harm at all.

You see, there are reasons why you should be using the MeLabs compiler... Darrel's magic code is one of them...

only one of them

[Darrel Taylor]

already posted a question about it, but did not get any answer

Sorry about that! &nbsp; I was purposely ignoring it.

Some other guy came in here and said that "The Other compiler" did everything that PicBasic Pro didn't. &nbsp; So, I didn't think you needed it.

"I picked a bad day to stop sniffing glue" - Airplane.

But seriously folks, &nbsp;R2 is a PicBasic Pro system variable that holds the modulas remainder after a 31x15 divide with the DIV32 command. &nbsp;I don't use "The Other compiler", so I really don't know how you would do that.
<br>

[Acetronics2]

I just forgot it was written for a 16F84 ...

But, in Mel's answer, I didn't see something like :

LCDOUT $FE, $80, ... to place cursor at the beginning of the 1st line, to be sure to overwrite old text ...



Alain

PS: si ça t'intéresse, j'ai les typons pour une petite plaque de démo Kivabien avec un buzzer, trois Leds, 3 E/S , un cavalier de reset ou config et un afficheur LED 2x16...

ça aide ...beaucoup !!!

[Melanie]

> think you forgot a space between " " in the line for kmh<10. Do i have it right ?

Partially. My example is however correct.

The first IF statement adds one blank (space).
The second IF statement adds one blank.

If the value is < 10 km/h, then BOTH 'if' statements will be excuted adding a total of two blanks. If the value is > 9 and < 100, then only the FIRST 'if' statement is excuted adding only one blank.

[TK5EP]

Oupssss !
Next time, i will turn my keyboard 7 times before writing a post !
Sorry... :-(

> think you forgot a space between " " in the line for kmh<10. Do i have it right ?

Partially. My example is however correct.

The first IF statement adds one blank (space).
The second IF statement adds one blank.

If the value is < 10 km/h, then BOTH 'if' statements will be excuted adding a total of two blanks. If the value is > 9 and < 100, then only the FIRST 'if' statement is excuted adding only one blank.

[CocaColaKid]

For a bar graph go to http://www.picbasic.co.uk/forum/show...LCDbar_INC.bas. Darrel wrote an include file that dones an amazing job using a bar graph.