LCD BARgraphs

[Art]

Hi, DON
Just turn your LCD 90° cckw !!!
Alain

Did a vertical graphing tachometer over time with a single custom char (far right in the video).



Just got to matrix rotate the byte and shift every byte in the custom char every frame to make room for the next vertical byte.
(this one has odometer effect on the elapsed timer as well

[Ioannis]

Hi Art. It is awesome! Really nice effect.

Ioannis

[srspinho]

Hi Art !

nice idea for the tachometer.

I have an old project, where I´m already using 8 custom chars to show darrel´s bargraph, and other "compressed characters, like "Km/l" , "L/h".

Is it possible to re-use the custom char to show the odometer efect and this nice tachometer or this is not possible ?

Is your code for the tachometer complicated ?

Thank you.

Sérgio

[Art]

Hi,
I'll post it go in it's own thread in a little bit.
The tach is interrupt driven, display is PBP.
I'm close to finishing something much nicer

[srspinho]

Hi Art,

Thank you very much for your reply !

I Will wait for your post.

My best regards.

Sérgio

[Art]

Hi srspinho,

Unfortunately I have lost that code
In the end, for that project, I ditched both the graphing tachometer,
and the rolling odometer effect for the time display.
They both looked good on the desk where the project spent a couple of months,
but in the car, they both turned out to be a terrible idea.

I could see the peak on the tachometer graph, but not tell if it was the current
reading without looking hard, and the same with the elapsed time.
I went back to a plain vertical bargraph for the tachometer:



I do still have current code for the project that I wouldn't otherwise mind sharing entirely,
but I would mind spending the time making sense of it where it was not written for others.
It is only a collection of things available here, or substitutes for them done myself.
I did my own asm interrupts for example, but DT's interrupts do exactly the same thing.

I have an old project, where I´m already using 8 custom chars to show darrel´s bargraph, and other "compressed characters, like "Km/l" , "L/h".
Is it possible to re-use the custom char to show the odometer efect and this nice tachometer or this is not possible ?

I didn't read this correctly.
No, it is only possible to display eight at a time, you can only change the content of those eight locations an unlimited number of times.
otherwise it would be a full graphics LCD. THe elapsed timer in this one is only using six of them, the tach uses one, and there's a spare.

[srspinho]

Thank you Art !

I think I Will try your 2x16 graphic lib .

Regards.