Search found 141 matches

by Brissieboy
Wed Dec 19, 2018 10:59 am
Forum: Dot Matrix Display
Topic: Countdown in the center of DMD
Replies: 3
Views: 3455

Re: Countdown in the center of DMD

Not very familiar with the DMD2 library, but doesn't the TextBox allow you set the vertical position? Would that work for you?
You can then read the height of the font and the display then work out where to place the text box.
by Brissieboy
Wed Dec 19, 2018 10:47 am
Forum: OLED128 Display
Topic: How to display the degree icon
Replies: 7
Views: 627

Re: How to display the degree icon

It is best to rename your modified font to avoid any confusion as well as adding plenty of comments in the file to show what you have done and why - remember that you can never have too many comments. To rename the font you need to do 3 things: (demo here will use "MY_Droid_Sans_12" for the new name...
by Brissieboy
Sun Dec 16, 2018 11:06 pm
Forum: OLED128 Display
Topic: How to display the degree icon
Replies: 7
Views: 627

Re: How to display the degree icon

There is quite a bit of information on how these fonts work on this forum. You might find this thread a helpful starting point.
by Brissieboy
Sat Dec 15, 2018 12:04 am
Forum: OLED128 Display
Topic: How to display the degree icon
Replies: 7
Views: 627

Re: How to display the degree icon

The Droid_Sans_12 font that you are using only defines characters within the range 32-127 (decimal). I'm not aware of any that do define the full extended character set - they might be out there but they would take up a lot of memory space. Might be best to find another solution. Rather than going t...
by Brissieboy
Thu Dec 13, 2018 7:04 am
Forum: OLED128 Display
Topic: How to display the degree icon
Replies: 7
Views: 627

Re: How to display the degree icon

Not sure if this helps, but the degree symbol is part of the extended character set (127-255) so may not be available in the font you are using.
And I think the degree symbol is 176 decimal, not 247.
No idea on the brightness issue as I have not yet had a need to play with the OLED display.
by Brissieboy
Thu Nov 22, 2018 1:37 am
Forum: Eleven
Topic: Intergrated Shiftlight in a BA Falcon tacho guage
Replies: 2
Views: 809

Re: Intergrated Shiftlight in a BA Falcon tacho guage

Have you considered accessing the CAN bus directly? The information you need is obviously available there if the tacho is driven that way. There are plenty of resources available to help you with access and this might be a tidier solution. Asking for both hardware and software design for your basic ...
by Brissieboy
Sat Oct 27, 2018 10:34 pm
Forum: Dot Matrix Display
Topic: DMD scrolling Speed control
Replies: 3
Views: 1052

Re: DMD scrolling Speed control

Scrolling speed is determined by how often you step the marquee. If you are using the original DMD library this is done by dmd.stepMarquee(), or for DMD2 it is dmd.marqueeScrollX(), which you execute within a timed loop. So all you need to do is adjust the timing of the loop to alter scrolling speed.
by Brissieboy
Sun Oct 21, 2018 10:21 pm
Forum: Dot Matrix Display
Topic: why so many pins for 32x16 DMD?
Replies: 2
Views: 687

Re: why so many pins for 32x16 DMD?

The SPI interface requires the 3 lines: - PIN_DMD_CLK - PIN_DMD_SCLK - PIN_DMD_R_DATA There is plenty of resources available which explain how this interface works. The DMD is arranged in 4 blocks and the 2 lines: - PIN_DMD_A - PIN_DMD_B are used to select which 1 of the 4 is currently active. And f...
by Brissieboy
Tue Sep 04, 2018 11:05 pm
Forum: Dot Matrix Display
Topic: runnig text Arabic
Replies: 3
Views: 1729

Re: runnig text Arabic

Have a look at this topic . There is a file attached to one post called "MyBigFont.h". Have a look at that file. It should help explain how these fonts work. There are comments added throughout as well as a description of how it is built at the end of the file. This might help you to construct your ...
by Brissieboy
Mon Aug 20, 2018 10:44 pm
Forum: Dot Matrix Display
Topic: New beta release "DMD2" Library
Replies: 107
Views: 54770

Re: New beta release "DMD2" Library

Scrolling with multiple displays does not perform very well the way the DMD2 library currently works at the moment. It is a result of the way it works, not the actual scrolling function. I would suggest you use the original DMD library. It certainly lacks some of the features of the DMD2 library, bu...