Hello,
I need help with locating the library for my Longruner 3.5"TFT LCD, as when I try to search for it i get endless Amazon links. If anyone uses this, could you send me the library?
Thanks! 
Find the driver chip & search for the chip number + Arduino.
A lot of this type of screen use the Adafruit GFX set of libraries.
missdrew:
Find the driver chip & search for the chip number + Arduino.A lot of this type of screen use the Adafruit GFX set of libraries.
Im so sorry for asking the stupidest question in the arduino forum ever, but what is the driver chip? Do you mean the Atmega?
You need to look on the rear of your display to hopefully locate the driver chip and read off the number on it. That will then lead you to the correct library to use.
If in doubt, take a picture of the rear of the display and post it here.
markd833:
If in doubt, take a picture of the rear of the display and post it here.
Ok, not as clear a photo as I was hoping for. There are a lot of pins along the 2 edges. The writing next to each pin may give some clues. It could be that the driver chip is underneath the LCD.
There's a micro-SD card socket so I'm guessing that there are some SPI signals in there (MOSI, MISO, SCK, SS). Are there any pins with words like that next to them?
Can you post a better picture so we can read the writing next to each pin?
That looks like this one: http://www.lcdwiki.com/3.5inch_Arduino_Display-UNO
which has a IL9486 driver chip.
DO NOT USE the library suggested on that page.
Instead use the Adafruit gfx library along with the MCUFRIEND_kbv library both of which can be found in the library manager in the Arduino IDE.
if you have any more questions. post them in the Display sub-forum of this site. the author of the MCUFRIEND library contributes there frequently and is very helpful.
Hutkikz:
Instead use the Adafruit gfx library along with the MCUFRIEND_kbv library both of which can be found in the library manager in the Arduino IDE.
I dont use Adafruit, I am using Arduino Uno. Does the Adafruit library work with it? Or is there another library that will work? And i need the download links as well, since the thing im using isn't Arduino brand.
itsfoxy87:
I dont use Adafruit, I am using Arduino Uno. Does the Adafruit library work with it? Or is there another library that will work?
The Adafruit_GFX library will work with the Arduino UNO or any of its numerous clones/copies. Adafruit (the company) has written numerous libraries that are usable on a wide variety of Arduino type boards.
Both libraries are available on github you can search for them there.
You will want to run the testcard_kbv example sketch in the Mcufriend library to
see if it can autodetect your display if not you may need to set it manually.