Hi, help me with this lcd powertip.
I have searched all over the web and can't find the datasheet.
Characteristics: PG12864A-PC and only has 15 pins of connection.
More data PG12864WYF-AWJ-B-Q
PG12864A-PC datasheet was in the first through fifth link in a general search for me.
Is there a special feature with your device that you can not find?
Hi if I search for it as PG12864-A, there is info and datasheet but not for the PG12864A-PC lcd.
I need the pinout to connect to the arduino.
I can't find any info of this PG12864A-PC dipslay with only 15 pins, I can only find pg12864A/K with 20 pins, and these are no good for me.
If you can help me, thanks
I think "-PC" means "Powertip-tech Corp"... the PCB date looks 2010/07/19 part number 12864WYF (right edge). The silk screen changes more than the PCB.
Thanks, for the comment, but as I look at the datasheets, they all use 20 pins.
I would appreciate it if you could enlighten me on how to wire this display with only 15 pins. Forgive my insistence as I have been able to run other lcd's with 20 pins and other brands.
The thing is that I have tried but with the fear of damaging it.
pin 15 at 5v (+) illuminates the screen, pin 1 is gnd and pin 2 is 5v(+) and I managed to illuminate it.
Thanks in advance.
Excuse my English, I am Latin American.
I have deleted your other cross-post @djklika.
Cross-posting is against the Arduino forum rules. The reason is that duplicate posts can waste the time of the people trying to help. Someone might spend a lot of time investigating and writing a detailed answer on one topic, without knowing that someone else already did the same in the other topic.
Repeated cross-posting can result in a suspension from the forum.
In the future, please only create one topic for each distinct subject matter. This is basic forum etiquette, as explained in the "How to get the best out of this forum" guide. It contains a lot of other useful information. Please read it.
Thanks in advance for your cooperation.
Not only pin 1 and pin 15 are indicated.
No silkscreen on the board.
I sent an email to powertip company, but they never answered me.
That's why I uploaded the image of the display board before.
You can see A and K in your picture... on the left... follow their traces or "buzz" them to the connector with a multimeter.
See if you can identify the data lines (probably 8) which will probably "flow" in a group to keep their traces the same length. Compare a picture of a known LCD's data lines.
Under those black blobs are the main components. The other P-tech boards have three chips. I'll bet they have not changed their chip location on new boards. Use new P-tech documentation to discover what is under those blobs, where the lines originate, and terminate.
You probably have a variable pin for character intensity (V0), and one or more ground pins, and one or more power pins (one for logic, at least).
C7 (top left) might be a decoupling capacitor between power and ground. There could be more than one power (logic, backlight, other).
With the information you have, keep looking on other electronic project forum sites (like model railroads)... whose sites have been around well before the 2010 year of manufacturing this board.
Thanks, good idea. I will try continuity to see what pins they are.
I will continue to search the web for data on this board.
I came to you in case there were any similarities on other boards using 15 pins. My thanks to you.
I think that board is just an old design, and the new designs (20 pins) have controls that you do not need (or have). Little by little, and you will have the answer.
Archive.org has data from decades past.
Wayback Machine
Test continuity .....
A= +5v pin2
pin 1 is GND
and pin 15 goes to R14 which triggers or controls Q1 which outputs K in the image.
I would think it has no contrast control so I control CS1 or CS2... or maybe I could PSB(Hparallel or L serial mode)...?
Find this in archive.org(I did not know this website) I found this pin data from another powertip that is not quite 12864... and I will let you know if it worked.
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Now it remains to see which library to use ...
maybe U8glib... i think the driver is ks0108...
Or if you have a suggestion...?
thanks
Ok tomorrow I will try the SPI standard. thanks
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