It says there that Vee, Pin 17, is an - Output.
"# Has built-in inverter for negative power supply"
How about rigging up +5 to Pin 2 and Gnd to Pin 1 and checking for that Vee voltage?
If it's present then continue with the hook-up per the "Power Supply" inset.
Maybe, like the display of mine that I mentioned previously, yours will come up with all pixels dark, too.
It did not work. As soon as I connected the 5v from the LCD to the mega, my mega shut off. So i tried a power supply. I set it for 5V, and as soon as I turn it on, the current jumped to 3.1A and cut off. I don't think it would use more than 3.1A.
I believe I've seen this schematic as well. I can't recall why I dismissed it. I think because it was a 24 and not 24L.
Hopefully it did not burn up my Mega, I am sure it is fine. This LCD is just a mess... I may try to contact Hantronix via. the phone, but they have yet to return my emails. If I hear of anything, I will post for future reference for others.
If you or anyone has an idea, PLEASE let me know! thanks
Could this be a fake screen, as in wrong identification on the back for whatever reason? This is all I can figure out haha I got it off of Marlin P Jones.
Here is what I am trying with no success I am only getting back light of lcd but nothing getting printed on it!
My LCD is electrolite 240128d which doent provide any specific datasheet but after testing and debugging I got the one datasheet compatible to this display!
I am attaching the datasheet below!
In this also I Vee is generated internally by using 7660 pair! so it is giving me -15V.
My connections are exactly as I mention in code other than this I only made following connection!
VDD=LED A=5v UNO
FG=GND=FS= GND of UNO
Vo open as I am not understanding where to connect it!
And my code is
#include "U8glib.h"
U8GLIB_T6963_240X128 u8g(2, 3, 4, 5, 6, 7, 8, 9, 10, A5, 12, 11, 13); // 8Bit Com: D0..D7: 2,3,4,5,6,7,8,9, cs=10, C/D=A5, wr=12, rd=11, reset=13
void draw(void) {
// graphic commands to redraw the complete screen should be placed here
u8g.setFont(u8g_font_unifont);
u8g.setPrintPos(0, 20);
// call procedure from base class, http://arduino.cc/en/Serial/Print
u8g.print("Hello World!");
}
void setup(void) {
// flip screen, if required
// u8g.setRot180();
}
void loop(void) {
// picture loop
u8g.firstPage();
do {
draw();
} while( u8g.nextPage() );
// rebuild the picture after some delay
delay(500);
}
So where am i doing wrong? any suggestions could be a great help!
Ok after reading few threads I connected pot of 50K between VCC and VEE(-12V) to VO but now on hello world program I am only getting a black line for 1/2 sec and it gets disappear again same for the rotation example!
I dont understand where I am doing wrong!
Hey thanks for the support!
I just want to ask you that I want to print one continuous wave form so can we shift our entire selected pixels towards right or left? or do we have to re print entire data again pixel by pixel