I have this display
and a Arduino Mega 2560.
I follow this tutorial 3.5inch Arduino Display-UNO - LCD wiki but the data don' t appear correctly. I have as attachment the example (display_string) running on Arduino. I remove the comment
//LCDWIKI_KBV mylcd(ILI9486,A3,A2,A1,A0,A4);
Do anyone have an idea how to resolve this issue?
Please be a bit more specific.
I am guessing that you went to 3.5inch Arduino Display-UNO - LCD wiki
And then went to Program Download http://www.lcdwiki.com/res/Program/Arduino/3.5inch/UNO_8BIT_ILI9486_MAR3501_V1.1/3.5inch_Arduino_8BIT_Module_ILI9486_MAR3501_V1.1.zip
And ran the "display_string.ino" example.
What did it say on the Serial Terminal ? (9600 baud)
I am sure that these examples will work. But I need to know exactly which one and where you got it from.
Life is a lot more straightforward with IDE Library Manager. e.g. MCUFRIEND_kbv
LCDWIKI is not supported by the Library Manager.
Oh, it is far better to copy-paste from a program than to photograph the screen e.g.
#include <LCDWIKI_GUI.h> //Core graphics library
#include <LCDWIKI_KBV.h> //Hardware-specific library
//the definiens of 8bit mode as follow:
//if the IC model is known or the modules is unreadable,you can use this constructed function
//LCDWIKI_KBV mylcd(ILI9341,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(ILI9325,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(ILI9328,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(HX8357D,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(HX8347G,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(HX8347I,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
LCDWIKI_KBV mylcd(ILI9486,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(ST7735S,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
//if the IC model is not known and the modules is readable,you can use this constructed function
//LCDWIKI_KBV mylcd(240,320,A3,A2,A1,A0,A4);//width,height,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(320,480,A3,A2,A1,A0,A4);//width,height,cs,cd,wr,rd,reset
David.
#include <LCDWIKI_GUI.h> //Core graphics library
#include <LCDWIKI_KBV.h> //Hardware-specific library
//the definiens of 8bit mode as follow:
//if the IC model is known or the modules is unreadable,you can use this constructed function
//LCDWIKI_KBV mylcd(ILI9341,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(ILI9325,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(ILI9328,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(HX8357D,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(HX8347G,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(HX8347I,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
LCDWIKI_KBV mylcd(ILI9486,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(ST7735S,A3,A2,A1,A0,A4); //model,cs,cd,wr,rd,reset
//if the IC model is not known and the modules is readable,you can use this constructed function
//LCDWIKI_KBV mylcd(240,320,A3,A2,A1,A0,A4);//width,height,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(320,480,A3,A2,A1,A0,A4);//width,height,cs,cd,wr,rd,reset
//the definiens of 16bit mode as follow:
//if the IC model is known or the modules is unreadable,you can use this constructed function
//LCDWIKI_KBV mylcd(ILI9341,40,38,39,44,41); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(ILI9325,40,38,39,44,41); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(ILI9328,40,38,39,44,41); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(HX8357D,40,38,39,44,41); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(HX8347G,40,38,39,44,41); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(HX8347I,40,38,39,44,41); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(ILI9486,40,38,39,44,41); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(ILI9488,40,38,39,44,41); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(ILI9481,40,38,39,44,41); //model,cs,cd,wr,rd,reset
//LCDWIKI_KBV mylcd(ST7735S,40,38,39,44,41); //model,cs,cd,wr,rd,reset
//if the IC model is not known and the modules is readable,you can use this constructed function
//LCDWIKI_KBV mylcd(240,320,40,38,39,44,41);//width,height,cs,cd,wr,rd,reset for
//LCDWIKI_KBV mylcd(320,480,40,38,39,44,41);//width,height,cs,cd,wr,rd,reset
//define some colour values
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
void setup()
{
mylcd.Init_LCD();
mylcd.Fill_Screen(BLACK);
}
void loop()
{
mylcd.Set_Text_Mode(0);
//display 1 times string
mylcd.Fill_Screen(0x0000);
mylcd.Set_Text_colour(RED);
mylcd.Set_Text_Back_colour(BLACK);
mylcd.Set_Text_Size(1);
mylcd.Print_String("Hello World!", 0, 0);
mylcd.Print_Number_Float(01234.56789, 2, 0, 8, '.', 0, ' ');
mylcd.Print_Number_Int(0xDEADBEF, 0, 16, 0, ' ',16);
//mylcd.Print_String("DEADBEF", 0, 16);
//display 2 times string
mylcd.Set_Text_colour(GREEN);
mylcd.Set_Text_Size(2);
mylcd.Print_String("Hello World!", 0, 40);
mylcd.Print_Number_Float(01234.56789, 2, 0, 56, '.', 0, ' ');
mylcd.Print_Number_Int(0xDEADBEF, 0, 72, 0, ' ',16);
//mylcd.Print_String("DEADBEEF", 0, 72);
//display 3 times string
mylcd.Set_Text_colour(BLUE);
mylcd.Set_Text_Size(3);
mylcd.Print_String("Hello World!", 0, 104);
mylcd.Print_Number_Float(01234.56789, 2, 0, 128, '.', 0, ' ');
mylcd.Print_Number_Int(0xDEADBEF, 0, 152, 0, ' ',16);
// mylcd.Print_String("DEADBEEF", 0, 152);
//display 4 times string
mylcd.Set_Text_colour(WHITE);
mylcd.Set_Text_Size(4);
mylcd.Print_String("Hello!", 0, 192);
//display 5 times string
mylcd.Set_Text_colour(YELLOW);
mylcd.Set_Text_Size(5);
mylcd.Print_String("Hello!", 0, 224);
//display 6 times string
mylcd.Set_Text_colour(RED);
mylcd.Set_Text_Size(6);
mylcd.Print_String("Hello!", 0, 266);
delay(3000);
}
The code, which my Arduino runs, is above. I have executed the steps above too. Serial monitor don't show anything.
I am installing the MCUFRIEND_kbv library and I' ll update the thead
I have installed MCUFRIEND Library and runs example diagnose_TFT_support.
#include <MCUFRIEND_kbv.h>
MCUFRIEND_kbv tft;
// Assign human-readable names to some common 16-bit color values:
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
#define GRAY 0x8410
uint16_t version = MCUFRIEND_KBV_H_;
void setup()
{
Serial.begin(9600);
if (!Serial) delay(5000); //allow some time for Leonardo
uint16_t ID = tft.readID(); //
Serial.println(F("Diagnose whether this controller is supported"));
Serial.println(F("There are FAQs in extras/mcufriend_how_to.txt"));
Serial.println(F(""));
Serial.print(F("tft.readID() finds: ID = 0x"));
Serial.println(ID, HEX);
Serial.println(F(""));
Serial.print(F("MCUFRIEND_kbv version: "));
Serial.print(version/100);
Serial.print(F("."));
Serial.print((version / 10) % 10);
Serial.print(F("."));
Serial.println(version % 10);
Serial.println(F(""));
if (ID == 0x0404) {
Serial.println(F("Probably a write-only Mega2560 Shield"));
Serial.println(F("#define USE_SPECIAL in mcufriend_shield.h"));
Serial.println(F("#define appropriate SPECIAL in mcufriend_special.h"));
Serial.println(F("e.g. USE_MEGA_16BIT_SHIELD"));
Serial.println(F("e.g. USE_MEGA_8BIT_SHIELD"));
Serial.println(F("Hint. A Mega2560 Shield has a 18x2 male header"));
Serial.println(F("Often a row of resistor-packs near the 18x2"));
Serial.println(F("RP1-RP7 implies 16-bit but it might be 8-bit"));
Serial.println(F("RP1-RP4 or RP1-RP5 can only be 8-bit"));
}
if (ID == 0xD3D3) {
uint16_t guess_ID = 0x9481; // write-only shield
Serial.println(F("Probably a write-only Mega2560 Shield"));
Serial.print(F("Try to force ID = 0x"));
Serial.println(guess_ID, HEX);
tft.begin(guess_ID);
}
else tft.begin(ID);
Serial.println(F(""));
if (tft.width() == 0) {
Serial.println(F("This ID is not supported"));
Serial.println(F("look up ID in extras/mcufriend_how_to.txt"));
Serial.println(F("you may need to edit MCUFRIEND_kbv.cpp"));
Serial.println(F("to enable support for this ID"));
Serial.println(F("e.g. #define SUPPORT_8347D"));
Serial.println(F(""));
Serial.println(F("New controllers appear on Ebay often"));
Serial.println(F("If your ID is not supported"));
Serial.println(F("run LCD_ID_readreg.ino from examples/"));
Serial.println(F("Copy-Paste the output from the Serial Terminal"));
Serial.println(F("to a message in Displays topic on Arduino Forum"));
Serial.println(F("or to Issues on GitHub"));
Serial.println(F(""));
Serial.println(F("Note that OPEN-SMART boards have diff pinout"));
Serial.println(F("Edit the pin defines in LCD_ID_readreg to match"));
Serial.println(F("Edit mcufiend_shield.h for USE_SPECIAL"));
Serial.println(F("Edit mcufiend_special.h for USE_OPENSMART_SHIELD_PINOUT"));
while (1); //just die
} else {
Serial.print(F("PORTRAIT is "));
Serial.print(tft.width());
Serial.print(F(" x "));
Serial.println(tft.height());
Serial.println(F(""));
Serial.println(F("Run the examples/graphictest_kbv sketch"));
Serial.println(F("All colours, text, directions, rotations, scrolls"));
Serial.println(F("should work. If there is a problem, make notes on paper"));
Serial.println(F("Post accurate description of problem to Forum"));
Serial.println(F("Or post a link to a video (or photos)"));
Serial.println(F(""));
Serial.println(F("I rely on good information from remote users"));
}
}
void loop()
{
static uint8_t aspect = 0;
const char *aspectname[] = {
"PORTRAIT", "LANDSCAPE", "PORTRAIT_REV", "LANDSCAPE_REV"
};
const char *colorname[] = { "BLUE", "GREEN", "RED", "GRAY" };
uint16_t colormask[] = { BLUE, GREEN, RED, GRAY };
uint16_t ID = tft.readID(); //
tft.setRotation(aspect);
int width = tft.width();
int height = tft.height();
tft.fillScreen(colormask[aspect]);
tft.drawRect(0, 0, width, height, WHITE);
tft.drawRect(32, 32, width - 64, height - 64, WHITE);
tft.setTextSize(2);
tft.setTextColor(BLACK);
tft.setCursor(40, 40);
tft.print("ID=0x");
tft.print(ID, HEX);
if (ID == 0xD3D3) tft.print(" w/o");
tft.setCursor(40, 70);
tft.print(aspectname[aspect]);
tft.setCursor(40, 100);
tft.print(width);
tft.print(" x ");
tft.print(height);
tft.setTextColor(WHITE);
tft.setCursor(40, 130);
tft.print(colorname[aspect]);
tft.setCursor(40, 160);
tft.setTextSize(1);
tft.print("MCUFRIEND_KBV_H_ = ");
tft.print(version);
if (++aspect > 3) aspect = 0;
delay(5000);
}
the output of Serial Terminal is bellow. The monitor is white now.
Diagnose whether this controller is supported
There are FAQs in extras/mcufriend_how_to.txt
tft.readID() finds: ID = 0x0
MCUFRIEND_kbv version: 2.9.8
This ID is not supported
look up ID in extras/mcufriend_how_to.txt
you may need to edit MCUFRIEND_kbv.cpp
to enable support for this ID
e.g. #define SUPPORT_8347D
New controllers appear on Ebay often
If your ID is not supported
run LCD_ID_readreg.ino from examples/
Copy-Paste the output from the Serial Terminal
to a message in Displays topic on Arduino Forum
or to Issues on GitHub
Note that OPEN-SMART boards have diff pinout
Edit the pin defines in LCD_ID_readreg to match
Edit mcufiend_shield.h for USE_SPECIAL
Edit mcufiend_special.h for USE_OPENSMART_SHIELD_PINOUT
Is it normal to return 0x0 as ID?
The output of "LCD_ID_readreg.ino" example of MCUFRIEND_kbv is bellow
Read Registers on MCUFRIEND UNO shield
controllers either read as single 16-bit
e.g. the ID is at readReg(0)
or as a sequence of 8-bit values
in special locations (first is dummy)
reg(0x0000) 00 00 ID: ILI9320, ILI9325, ILI9335, ...
reg(0x0004) 00 14 80 26 Manufacturer ID
reg(0x0009) 00 00 21 00 00 Status Register
reg(0x000A) 00 08 Get Power Mode
reg(0x000C) 00 26 Get Pixel Format
reg(0x0061) 40 40 RDID1 HX8347-G
reg(0x0062) 40 40 RDID2 HX8347-G
reg(0x0063) 40 00 RDID3 HX8347-G
reg(0x0064) 40 40 RDID1 HX8347-A
reg(0x0065) 40 00 RDID2 HX8347-A
reg(0x0066) 40 40 RDID3 HX8347-A
reg(0x0067) 40 40 RDID Himax HX8347-A
reg(0x0070) 00 00 Panel Himax HX8347-A
reg(0x00A1) 00 93 30 93 30 RD_DDB SSD1963
reg(0x00B0) 00 00 RGB Interface Signal Control
reg(0x00B4) 00 00 Inversion Control
reg(0x00B6) 00 02 02 3B 3B Display Control
reg(0x00B7) 00 06 Entry Mode Set
reg(0x00BF) 00 00 00 00 00 00 ILI9481, HX8357-B
reg(0x00C0) 40 40 40 40 40 40 40 40 00 Panel Control
reg(0x00C8) 40 40 40 40 40 40 40 40 40 40 40 40 40 GAMMA
reg(0x00CC) 40 40 Panel Control
reg(0x00D0) 00 00 00 Power Control
reg(0x00D2) 00 00 00 00 00 NVM Read
reg(0x00D3) 40 40 40 40 ILI9341, ILI9488
reg(0x00D4) 40 40 40 40 Novatek ID
reg(0x00DA) 40 40 RDID1
reg(0x00DB) 40 40 RDID2
reg(0x00DC) 40 40 RDID3
reg(0x00E0) 40 4D 71 79 49 4B 07 01 9F 1F 0E 00 0B 28 3E 09 GAMMA-P
reg(0x00E1) 40 93 30 93 30 BF BF BF BF BF BF BF BF BF BF BF GAMMA-N
reg(0x00EF) 40 40 40 40 40 40 ILI9327
reg(0x00F2) 40 40 51 51 51 51 51 51 51 51 51 51 Adjust Control 2
reg(0x00F6) 40 54 C0 66 Interface Control
Thanks for running the LCD_ID_readreg sketch from the examples.
I presume that the photo in #0 actually matches the display on your desk.
I do not recognise the controller at all. Nor can I even guess the Manufacturer.
Goto the mcufriend_how_to.txt file and look for 320x480 displays e.g.
HX8357-B 320x480 ID=0x8357 (shares init with 8357-D)
HX8357-C 320x480 ID=0x9090 (ID has changed from 0x8357)
HX8357-D 320x480 ID=0x0099 #define SUPPORT_8357D_GAMMA
ILI9481 320x480 ID=0x9481
ILI9486 320x480 ID=0x9486
ILI9487 320x480 ID=0x9487
ILI9488 320x480 ID=0x9488 (weird 555 display :#define SUPPORT_9488_555)
NT35310 320x480 ID=0x5310 (hardware must be set for 8-bit parallel)
R61581 320x480 ID=0x1581
RM68090 240x320 ID=0x6809
RM68130 176x220 ID=0x6813 #define SUPPORT_9225
RM68140 320x480 ID=0x6814 #define SUPPORT_68140
ST7796 320x480 ID=0x7796
UNKNOWN 320x480 ID=0x1511 (scroll directions not correct)
Try each ID in turn. See if any known controllers are "similar". Force the ID in setup() function in graphictest_kbv.ino
i.e. tft.begin(ID);
Don't worry about colours, directions, ... just look for clear display.
Report back.
Where did you buy this display?
David.
I tried to force all IDs. I don't get white image with some of them but anyone is clear.
The case of the display writes (Driver: ILI9486, Bus 8bit, Dots: 320x480, Touch: NO).
I have as attachments the image with case, and display output from graphicstest_kbv and Font_simple examples.
My brother give me the LCD. I don't know where he buys it.
Did the screen come in a sealed bag?
The bag clearly says ILI9486.
I would expect the Blue 3.5 inch shield to have ILI9481 or ILI9486.
The readreg report is not correct for a ILI9486 (or an ILI9481)
The Blue shield has a 3.3V regulator. So I would expect proper voltages. (unlike current Red Mcufriend pcb)
Can you try the shield with a Uno or another Mega?
I suspect that you have a damaged display.
Are you in Europe?
David.
Thank you.
I live in Greece. I don' t have other Arduino. I' ll buy a uno and an another display to try.
I tred another monitor few hours ago and datas are shown correctly with it. So my previous one had hardware issue.
What did you conclude?
Was it a bad Shield?
Was it a bad Arduino?
akikos:
I tred another monitor few hours ago and datas are shown correctly with it. So my previous one had hardware issue.
monitor means PC screen
shield means board that you "plug into" Arduino.
Google Translate works pretty well. Sometimes it does not give the correct words.
David.
