Search found 10 matches

by dinhhuynhky
Wed May 08, 2019 9:27 am
Forum: Dot Matrix Display
Topic: Data Polarity
Replies: 16
Views: 905

Re: Data Polarity

The problem in my P10 module, it use positive control data. clearScreen(true) This line in my case will turn all LEDs on. clearScreen(false) This line in my case will turn all LEDs off. and //drawText("123"); dmd.drawString( 0, 0, newString ,sLength, GRAPHICS_INVERSE); this will make LED turn on "12...
by dinhhuynhky
Tue May 07, 2019 5:49 pm
Forum: Dot Matrix Display
Topic: Data Polarity
Replies: 16
Views: 905

Re: Data Polarity

#include "SPI.h" #include "DMD.h" #include "TimerOne.h" #include "Arial_black_16.h" #include "SystemFont5x7.h" #define DISPLAYS_ACROSS 1 #define DISPLAYS_DOWN 1 DMD dmd( DISPLAYS_ACROSS , DISPLAYS_DOWN ); void ScanDMD() { dmd.scanDisplayBySPI(); } void setup() { Serial.begin(9600); Serial.println("...
by dinhhuynhky
Tue May 07, 2019 1:54 pm
Forum: Dot Matrix Display
Topic: Data Polarity
Replies: 16
Views: 905

Re: Data Polarity

This is my P10 module (exactly it) : https://www.ebay.com/itm/Red-LED-Displa ... 3699804495
by dinhhuynhky
Tue May 07, 2019 1:37 pm
Forum: Dot Matrix Display
Topic: Data Polarity
Replies: 16
Views: 905

Re: Data Polarity

I just diplay "OK" for testing.
This is my dmd_demo result https://www.youtube.com/watch?v=cjUJ6bwhhhU
I need all dot off, the data dot on.

Again, thank so much for your time !
by dinhhuynhky
Mon May 06, 2019 2:44 pm
Forum: Dot Matrix Display
Topic: Data Polarity
Replies: 16
Views: 905

Re: Data Polarity

2nd picture that I used GRAPHICS_INVERSE?. Character display not coẻctly. Let look top line and bottom line.
by dinhhuynhky
Mon May 06, 2019 2:39 pm
Forum: Dot Matrix Display
Topic: Data Polarity
Replies: 16
Views: 905

Re: Data Polarity

I had tried GRAPHICS_INVERSE? It work with that code but not perfect. It wont work with drawChar and drawString
by dinhhuynhky
Mon May 06, 2019 8:48 am
Forum: Dot Matrix Display
Topic: Data Polarity
Replies: 16
Views: 905

Re: Data Polarity

Image
THIS OPTION OF TVLEDSHOW 2015 working great !
by dinhhuynhky
Mon May 06, 2019 7:45 am
Forum: Dot Matrix Display
Topic: Data Polarity
Replies: 16
Views: 905

Re: Data Polarity

Here is my sketch: Connection: https://cdn1.imggmi.com/uploads/2019/5/6/052bc6b21c430e20e7b49185f9c4434e-full.jpg Code: #include "SPI.h" #include "DMD.h" #include "TimerOne.h" #include "Arial_black_16.h" /*----------------------------------------------------------------------- Only 7 of the 16 pins ...
by dinhhuynhky
Mon May 06, 2019 3:35 am
Forum: Dot Matrix Display
Topic: Data Polarity
Replies: 16
Views: 905

Re: Data Polarity

Im following this video: https://www.youtube.com/watch?v=cpOpOGVOY5s
In this video just only data led on ( like X, O character )
In my video, my data led off ( "PlanB Studio" message ) : https://www.youtube.com/watch?v=QcyHCUm ... e=youtu.be

sorry for my Language

Thanks !
by dinhhuynhky
Sun May 05, 2019 3:34 am
Forum: Dot Matrix Display
Topic: Data Polarity
Replies: 16
Views: 905

Data Polarity

First, thanks so much about DMD Lib, It's nice.
I've a problem with Data polarity: Positive; and Data polarity: Native;
How DMD Lib can set this properties ?
I only need my P10 turn on led on my data.
Thanks so much !
Video: https://youtu.be/QcyHCUmK0OE