Search found 197 matches

by Brissieboy
Wed Mar 18, 2020 10:44 am
Forum: Dot Matrix Display
Topic: Interfacing PS2 keyboard
Replies: 4
Views: 562

Re: Interfacing PS2 keyboard

You are only reading and displaying a single character (strInput) and then lose it when ever a new character is received. There are several ways to achieve what you are after. Try using a character array and adding each new character to the next position in that array followed by a null terminating ...
by Brissieboy
Wed Mar 18, 2020 8:14 am
Forum: Dot Matrix Display
Topic: Interfacing PS2 keyboard
Replies: 4
Views: 562

Re: Interfacing PS2 keyboard

You do not provide enough information.
What hardware?
How you have set up that hardware?
What libraries?
Your code/sketch?
What are you trying to achieve?
What is actually happening?
by Brissieboy
Mon Mar 02, 2020 10:30 am
Forum: Dot Matrix Display
Topic: Static Text display on P10 LED Display
Replies: 3
Views: 5266

Re: Static Text display on P10 LED Display

So as I asked: What is going wrong? What is happening that shouldn't be happening, or what is not happening that should be happening? What have you done to debug it yourself? Have you tried to print something direct to the DMD? Did it work? If so the DMD display part looks OK. Are you receiving data...
by Brissieboy
Mon Mar 02, 2020 4:51 am
Forum: Dot Matrix Display
Topic: Static Text display on P10 LED Display
Replies: 3
Views: 5266

Re: Static Text display on P10 LED Display

Firstly, please put your code in the code markers - shown as </> in the line above the text entry box. I have just edited your post to do this, as I did in your previous thread. You do not give much information. What is going wrong? What is happening that shouldn't be happening, or what is not happe...
by Brissieboy
Thu Feb 27, 2020 11:09 pm
Forum: Dot Matrix Display
Topic: display Text without Scrolling on P10 LED Module using Arduino UNO
Replies: 3
Views: 1881

Re: display Text without Scrolling on P10 LED Module using Arduino UNO

It is the dmd.drawMarquee() & dmd.stepMarquee() that does the scrolling. Replace this dmd.drawMarquee(message ,max_char,(32*DISPLAYS_ACROSS)-1 ,0); long start=millis(); long timer=start; boolean ret=false; while(!ret) { if ((timer+30) < millis()) { ret=dmd.stepMarquee(-1,0); timer=millis(); } } with...
by Brissieboy
Thu Feb 27, 2020 4:27 am
Forum: Eleven
Topic: Which bootloader?
Replies: 1
Views: 4380

Re: Which bootloader?

The Eleven is a Uno clone so the chip with the bootloader should be the way to go. Just try it - nothing to lose. If it does not programme via the USB port, you could try configuring it as described in the link you mentioned. If it does not work after that you would appear to have a dead board. Othe...
by Brissieboy
Fri Feb 14, 2020 4:50 am
Forum: Dot Matrix Display
Topic: MAX Number of DMD
Replies: 10
Views: 9678

Re: MAX Number of DMD

My friend once decided to highlight this issue for about 2 days and he found the final number. The result was the number 343. Rubbish! Try about 4 to 6. Depends on display quality, what else you want to do, libraries, etc, etc. If you post nonsense or spam or off-topic material, you will very likel...
by Brissieboy
Tue Jan 14, 2020 10:46 pm
Forum: Dot Matrix Display
Topic: New beta release "DMD2" Library
Replies: 115
Views: 86244

Re: New beta release "DMD2" Library

Do not try to do too much at once. Start very basic and keep it as simple as possible. Do only one step at a time. Go back to the examples, take a copy of one (such as the countdown one) and start playing with that by changing things until you understand what the various parts are doing. Try getting...
by Brissieboy
Mon Jan 13, 2020 10:53 pm
Forum: Dot Matrix Display
Topic: New beta release "DMD2" Library
Replies: 115
Views: 86244

Re: New beta release "DMD2" Library

Please tell me on an example how to output a variable to a matrix. Thanks!
Again, not much information to go on, but you probably need to convert the variable to a char array before trying to display it.
by Brissieboy
Mon Jan 13, 2020 1:52 am
Forum: Dot Matrix Display
Topic: New beta release "DMD2" Library
Replies: 115
Views: 86244

Re: New beta release "DMD2" Library

You do not provide much information to allow any worthwhile comments, but if you are using the Freetronics type DMD board and a Uno (or similar) the DMD2 supplied example sketches should display in normal graphics, not inverted. If the display is inverted for all the example sketches then it looks l...