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128x64 ST7920 LCD Arteffects #132

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1. When loading new sketch, LCD 128x64 ST7920 giving arteffects, then after few 
resets pressed it gets right, LCD is configured in Serial mode as I'm using 
Arduino NANO 328 and other data pins are occupied by other hardware. Searched 
the WEB and found that there might be issue with timings, so can you help 
fixing this?
I connected the screen as follows:

GND -A -   GND
RS -       D4
RW -       D5
E -        D6
K -        680R- D9

I use Digital output to power up the backlit in order to get it LOW when not in 
use or in SLEEP mode!
2.
3.

What is the expected output? What do you see instead?

What version of the product are you using? On what operating system?

Please provide any additional information below.

Original issue reported on code.google.com by elik7...@yahoo.com on 16 Jan 2013 at 7:32

GoogleCodeExporter commented 9 years ago 
which version of u8glib do you use?
How long are your wires? They should not be longer than 10cm

Oliver

Original comment by olikr...@gmail.com on 16 Jan 2013 at 7:38

GoogleCodeExporter commented 9 years ago 
Latest version, wires are quite long and without shielding, will try to cut 
them down to acceptable size.

Original comment by elik7...@yahoo.com on 16 Jan 2013 at 11:03

GoogleCodeExporter commented 9 years ago 
any progress on this?

Original comment by olikr...@gmail.com on 26 Jan 2013 at 7:39

GoogleCodeExporter commented 9 years ago 
Nop,

I've shorted wires, I'm working on fast prototyping board, so can't weld wires 
yet, but arteffects still exist, they dissapear only after some time LCD is up 
and after few resets.

One more concern:

Is there a way to move animation (sequence of pictures) into the SD card? as my 
flash memory is already full...

here is the code: 
http://arduino.cc/forum/index.php/topic,143117.0.html

Original comment by elik7...@yahoo.com on 26 Jan 2013 at 8:38

GoogleCodeExporter commented 9 years ago

Original comment by olikr...@gmail.com on 27 Jan 2013 at 6:45

GoogleCodeExporter commented 9 years ago 
this had been discussed in the refered forum post
--> closed

Original comment by olikr...@gmail.com on 23 Feb 2013 at 7:47