Search found 4 matches

by carastas
Tue Jan 29, 2019 6:33 pm
Forum: Dot Matrix Display
Topic: Doubled horizontal lines
Replies: 6
Views: 1593

Re: Doubled horizontal lines

Hi,

I tested with a Nano, and there's no flickering, so I guess it's the Leonardo's fault, but the Nano doesn't have the keyboard.h compatibility. I have to look for another board.

Thank you,
Dan
by carastas
Tue Jan 29, 2019 10:28 am
Forum: Dot Matrix Display
Topic: Doubled horizontal lines
Replies: 6
Views: 1593

Re: Doubled horizontal lines

Hm, good idea, I have another panel at the office, I'll try with that... Also, I'll try an uno... because it worked ok with the uno, I think, but I'll loose the keyboard capabilities ;( I think the interrupt timer or something differs from DMD and DMD2 and Uno and Leonardo. I thought it was somethin...
by carastas
Tue Jan 29, 2019 6:32 am
Forum: Dot Matrix Display
Topic: Doubled horizontal lines
Replies: 6
Views: 1593

Re: Doubled horizontal lines

HI, yes, if you look at the bottom horizontal line it has 4 pixels (leds) with the top one (4th from the bottom) slightly less lit than the bottom 3. That isn't supposed to be there, Actually now that I look at it some more LEDs are lit that shouldn't be (or the phone camera doesn't sync), but that ...
by carastas
Mon Jan 28, 2019 10:11 pm
Forum: Dot Matrix Display
Topic: Doubled horizontal lines
Replies: 6
Views: 1593

Doubled horizontal lines

Hi, I'm trying to create a dog agility timer with the DMD2 library and a Leonardo. Everything works great except that some horizontal lines are doubled... I redid the connections and it's the same... I'd like to use a Leonardo so I can also use a keyboard emulator to write the time in an excel sheet...