Extra Information :
There won't be any need to
DEFINE LCD_LINES 4
PBPro will work too if with DEFINE LCD_LINES 2.
Not really sure if the DEFINE LCD_LINES actually applied.
|
Extra Information :
There won't be any need to
DEFINE LCD_LINES 4
PBPro will work too if with DEFINE LCD_LINES 2.
Not really sure if the DEFINE LCD_LINES actually applied.
|
snip ....
The contrast, indeed need negative voltage of up to -5.7 vdc with relative
to 0/gnd. Whereas the Vdd remain at 5.1 Vdc.
The LCD is made by OPTREX model DMC20481.
... end snip
Wow - something is not right because my DMC20481 uses a + voltage for contrast. See the attached snippets from my DMC20481 datasheet.
Thoughts?
Paul Borgmeier
Salt Lake City, Utah
USA
|
yup,
this is the one I got, but it just don't work with + voltage.
I have 6 pieces of these, tried them all, and they all need
neg voltage.
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