2.0 INCH TFT DISPLAY Features
This module is a 2-inch TFT LCD module with “220×176” resolution and 65K color display. It is suitable for Arduino Uno and Mega2560 development boards, and also supports SD card expansion function. The driver IC is ILI9225.
You can download the datasheet of this module here.
2.0 INCH TFT Display Pinout
This module has 8 pins:
- 5V: Module power supply – 5V
- GND: Ground
- LCD_RST: LCD reset
- LCD_CS: LCD select
- LCD_RS: LCD data selection
- SDA: Sending data line
- SCL: Clock line
You can see the pinout of this module in the image below.
Required Materials
Hardware Components
Software Apps
Interfacing 2.0 INCH TFT Display with Arduino
Step 1: Circuit
The 2-inch display is a ready-made shield for Arduino Uno, which can also be placed on the Arduino Mega. The pins of this shield are designed to be easily installed on the Arduino.
Step 2: Code
First, download the following code.
Now open it and do the same as following.
1-Demo\Demo_Arduino\Install libraries
Copy the files folder to your Arduino library.
Then enter the folder and follow the path below.
Demo\Demo_Arduino\Demo_Mega2560&UNO_Software_SPI\Example_03_colligate_test\colligate_test
Run the Arduino file and upload it to your Arduino.
// IMPORTANT: LCDWIKI_SPI LIBRARY MUST BE SPECIFICALLY
// CONFIGURED FOR EITHER THE TFT SHIELD OR THE BREAKOUT BOARD.
//This program is a demo of how to use most of the functions
//of the library with a supported display modules.
//Set the pins to the correct ones for your development shield or breakout board.
//when using the BREAKOUT BOARD only and using these software spi lines to the LCD,
//You can use any free pin to define the pins,
//if you don't need to control the LED pin,you can set it to 3.3Vand set the pin definition to -1.
//for example
//pin usage as follow:
// CS RS RST SDA CLK VCC GND
//Arduino Mega2560&Uno A5 A3 A4 A2 A1 5V GND
//Remember to set the pins to suit your display module!
/********************************************************************************
* @attention
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, QD electronic SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
**********************************************************************************/
#include <LCDWIKI_GUI.h> //Core graphics library
#include <LCDWIKI_SPI.h> //Hardware-specific library
//paramters define
#define MODEL ILI9225
#define CS A5
#define CD A3
#define RST A4
#define SDA A2
#define SCK A1
#define LED -1 //if you don't need to control the LED pin,you should set it to -1 and set it to 3.3V
//the definiens of software spi mode as follow:
//if the IC model is known or the modules is unreadable,you can use this constructed function
LCDWIKI_SPI my_lcd(MODEL,CS,CD,-1,SDA,RST,SCK,LED); //model,cs,dc,sdo,sda,reset,sck,led
unsigned long show_text(void)
{
unsigned long time_start = micros();
my_lcd.Set_Draw_color(32, 0,255);
my_lcd.Fill_Rectangle(0, 0, my_lcd.Get_Display_Width()-1, 10);
my_lcd.Set_Text_colour(0, 255, 0);
my_lcd.Set_Text_Size(1);
my_lcd.Set_Text_Mode(1);
my_lcd.Print_String("* Color TFT Display Library *", CENTER, 2);
my_lcd.Set_Draw_color(128, 128, 128);
my_lcd.Fill_Rectangle(0, my_lcd.Get_Display_Height()-1-10, my_lcd.Get_Display_Width()-1, my_lcd.Get_Display_Height()-1);
my_lcd.Set_Text_colour(255, 255, 255);
my_lcd.Set_Text_Size(1);
my_lcd.Set_Text_Mode(1);
my_lcd.Print_String("<http://www.lcdwiki.com>", CENTER, my_lcd.Get_Display_Height()-9);
my_lcd.Set_Draw_color(255,255,0);
my_lcd.Draw_Rectangle(0, 11, my_lcd.Get_Display_Width()-1, my_lcd.Get_Display_Height()-1-11);
return micros() - time_start;
}
unsigned long show_triangle_function(void)
{
uint16_t i;
unsigned long time_start = micros();
my_lcd.Set_Draw_color(0, 0, 255);
my_lcd.Draw_Fast_VLine(my_lcd.Get_Display_Width()/2-1, 12, my_lcd.Get_Display_Height()- 24);
my_lcd.Draw_Fast_HLine(1, my_lcd.Get_Display_Height()/2-1, my_lcd.Get_Display_Width()-2);
for(i = 1;i <= (my_lcd.Get_Display_Height()- 32)/2/10;i++)
{
my_lcd.Draw_Fast_HLine(my_lcd.Get_Display_Width()/2-1-2, my_lcd.Get_Display_Height()/2-1-i*10, 5);
my_lcd.Draw_Fast_HLine(my_lcd.Get_Display_Width()/2-1-2, my_lcd.Get_Display_Height()/2-1+i*10, 5);
}
for(i = 1;i <= (my_lcd.Get_Display_Width()-2)/2/10;i++)
{
my_lcd.Draw_Fast_VLine(my_lcd.Get_Display_Width()/2-1-i*10, my_lcd.Get_Display_Height()/2-1-2, 5);
my_lcd.Draw_Fast_VLine(my_lcd.Get_Display_Width()/2-1+i*10, my_lcd.Get_Display_Height()/2-1-2, 5);
}
my_lcd.Set_Text_colour(0, 255, 255);
my_lcd.Set_Text_Back_colour(0,0,0);
my_lcd.Set_Text_Size(1);
my_lcd.Set_Text_Mode(0);
my_lcd.Print_String("sin",5,17);
my_lcd.Set_Draw_color(0, 255, 255);
for (i=1; i<my_lcd.Get_Display_Width()-2; i++)
{
my_lcd.Draw_Pixel(i,my_lcd.Get_Display_Height()/2-1+(sin(((i*2.27)*3.14)/180)*60));
}
my_lcd.Set_Text_colour(0, 255, 0);
my_lcd.Set_Text_Back_colour(0,0,0);
my_lcd.Set_Text_Size(1);
my_lcd.Set_Text_Mode(0);
my_lcd.Print_String("cos",5,25);
my_lcd.Set_Draw_color(0, 255, 0);
for (i=1; i<my_lcd.Get_Display_Width()-2; i++)
{
my_lcd.Draw_Pixel(i,my_lcd.Get_Display_Height()/2-1+(cos(((i*2.27)*3.14)/180)*60));
}
my_lcd.Set_Text_colour(255, 255, 0);
my_lcd.Set_Text_Back_colour(0,0,0);
my_lcd.Set_Text_Size(1);
my_lcd.Set_Text_Mode(0);
my_lcd.Print_String("tan",5,33);
my_lcd.Set_Draw_color(255, 255, 0);
for (i=1; i<my_lcd.Get_Display_Width()-2; i++)
{
my_lcd.Draw_Pixel(i,my_lcd.Get_Display_Height()/2-1+(tan(((i*2.27)*3.14)/180)*4));
}
my_lcd.Set_Text_colour(255, 0, 0);
my_lcd.Set_Text_Back_colour(0,0,0);
my_lcd.Set_Text_Size(1);
my_lcd.Set_Text_Mode(0);
my_lcd.Print_String("cot",5,41);
my_lcd.Set_Draw_color(255, 0, 0);
for (i=1; i<my_lcd.Get_Display_Width()-2; i++)
{
my_lcd.Draw_Pixel(i,my_lcd.Get_Display_Height()/2-1+1/(tan(((i*2.27)*3.14)/180)*0.25));
}
return micros()-time_start;
}
unsigned long show_sinewave(void)
{
uint8_t buf[my_lcd.Get_Display_Width()-2],x = 1,y;
unsigned long time_start = micros();
int16_t t = 20, b = 65,i;
float k = 1.6;
my_lcd.Set_Draw_color(0, 0, 255);
my_lcd.Draw_Fast_VLine(my_lcd.Get_Display_Width()/2-1, 12, my_lcd.Get_Display_Height()- 24);
my_lcd.Draw_Fast_HLine(1, my_lcd.Get_Display_Height()/2-1, my_lcd.Get_Display_Width()-2);
for (i=1; i<(my_lcd.Get_Display_Width()*t); i++)
{
x++;
if (x==my_lcd.Get_Display_Width()-1)
{
x=1;
}
if (i>my_lcd.Get_Display_Width()-1)
{
if ((x==my_lcd.Get_Display_Width()/2-1)||(buf[x-1]==my_lcd.Get_Display_Height()/2-1))
{
my_lcd.Set_Draw_color(0, 0, 255);
}
else
{
my_lcd.Set_Draw_color(0, 0, 0);
}
my_lcd.Draw_Pixel(x,buf[x-1]);
}
my_lcd.Set_Draw_color(255, 64, 255);
y=my_lcd.Get_Display_Height()/2-1+(sin(((i*k)*3.14)/180)*(b-(i/100)));
my_lcd.Draw_Pixel(x,y);
buf[x-1]=y;
}
return micros()- time_start;
}
unsigned long show_fill_rectangle(void)
{
uint16_t i;
unsigned long time_start = micros();
uint16_t side_len = (my_lcd.Get_Display_Height()-40)/5;
uint16_t x_spec = (my_lcd.Get_Display_Width()-5*side_len)/2;
uint16_t y_spec = (my_lcd.Get_Display_Height()-5*side_len)/2;
for(i = 0;i<5;i++)
{
switch (i)
{
case 0:
my_lcd.Set_Draw_color(255,0,255);
break;
case 1:
my_lcd.Set_Draw_color(255,0,0);
break;
case 2:
my_lcd.Set_Draw_color(0,255,0);
break;
case 3:
my_lcd.Set_Draw_color(0,0,255);
break;
case 4:
my_lcd.Set_Draw_color(255,255,0);
break;
default:
break;
}
my_lcd.Fill_Rectangle(x_spec+i*side_len-1, y_spec+i*side_len-1, x_spec+(i+1)*side_len-1, y_spec+(i+1)*side_len-1);
my_lcd.Fill_Rectangle(x_spec+i*side_len-1, y_spec+(5-i)*side_len-1, x_spec+(i+1)*side_len-1, y_spec+(4-i)*side_len-1);
}
return micros()- time_start;
}
unsigned long show_fill_round_rectangle(void)
{
uint16_t i;
unsigned long time_start = micros();
uint16_t side_len = (my_lcd.Get_Display_Height()-40)/5;
uint16_t x_spec = (my_lcd.Get_Display_Width()-5*side_len)/2;
uint16_t y_spec = (my_lcd.Get_Display_Height()-5*side_len)/2;
for(i = 0;i<5;i++)
{
switch (i)
{
case 0:
my_lcd.Set_Draw_color(255,0,255);
break;
case 1:
my_lcd.Set_Draw_color(255,0,0);
break;
case 2:
my_lcd.Set_Draw_color(0,255,0);
break;
case 3:
my_lcd.Set_Draw_color(0,0,255);
break;
case 4:
my_lcd.Set_Draw_color(255,255,0);
break;
default:
break;
}
my_lcd.Fill_Round_Rectangle(x_spec+i*side_len-1, y_spec+i*side_len-1, x_spec+(i+1)*side_len-1, y_spec+(i+1)*side_len-1,5);
my_lcd.Fill_Round_Rectangle(x_spec+i*side_len-1, y_spec+(5-i)*side_len-1, x_spec+(i+1)*side_len-1, y_spec+(4-i)*side_len-1,5);
}
return micros()- time_start;
}
unsigned long show_fill_circle(void)
{
uint16_t i;
unsigned long time_start = micros();
uint16_t r_len = (my_lcd.Get_Display_Height()-40)/5/2;
uint16_t x_spec = (my_lcd.Get_Display_Width()-5*r_len*2)/2;
uint16_t y_spec = (my_lcd.Get_Display_Height()-5*r_len*2)/2;
for(i = 0;i<5;i++)
{
switch (i)
{
case 0:
my_lcd.Set_Draw_color(255,0,255);
break;
case 1:
my_lcd.Set_Draw_color(255,0,0);
break;
case 2:
my_lcd.Set_Draw_color(0,255,0);
break;
case 3:
my_lcd.Set_Draw_color(0,0,255);
break;
case 4:
my_lcd.Set_Draw_color(255,255,0);
break;
default:
break;
}
my_lcd.Fill_Circle(x_spec+r_len+i*r_len*2-1, y_spec+r_len+i*r_len*2-1,r_len);
my_lcd.Fill_Circle(x_spec+r_len+i*r_len*2-1, y_spec+(5-i)*r_len*2-r_len-1,r_len);
}
return micros()- time_start;
}
unsigned long show_fill_triangle(void)
{
uint16_t i;
unsigned long time_start = micros();
uint16_t h_len = (my_lcd.Get_Display_Height()-40)/5;
uint16_t side_len = (h_len*115)/100;
uint16_t x_spec = (my_lcd.Get_Display_Width()-5*side_len)/2;
uint16_t y_spec = (my_lcd.Get_Display_Height()-5*h_len)/2;
for(i = 0;i<5;i++)
{
switch (i)
{
case 0:
my_lcd.Set_Draw_color(255,0,255);
break;
case 1:
my_lcd.Set_Draw_color(255,0,0);
break;
case 2:
my_lcd.Set_Draw_color(0,255,0);
break;
case 3:
my_lcd.Set_Draw_color(0,0,255);
break;
case 4:
my_lcd.Set_Draw_color(255,255,0);
break;
default:
break;
}
my_lcd.Fill_Triangle(x_spec+i*side_len-1,y_spec+(i+1)*h_len-1,x_spec+side_len/2+i*side_len-1,y_spec+i*h_len-1,x_spec+(i+1)*side_len-1,y_spec+(i+1)*h_len-1);
my_lcd.Fill_Triangle(x_spec+i*side_len-1,y_spec+(5-i)*h_len-1,x_spec+side_len/2+i*side_len-1,y_spec+(4-i)*h_len-1,x_spec+(i+1)*side_len-1,y_spec+(5-i)*h_len-1);
}
return micros()- time_start;
}
unsigned long show_grid_lines(void)
{
uint16_t i;
unsigned long time_start = micros();
int16_t wid = my_lcd.Get_Display_Width();
float k = 1.38;
my_lcd.Set_Draw_color(255,0,0);
for (i=12; i<my_lcd.Get_Display_Height()-1-12; i+=5)
{
my_lcd.Draw_Line(1, i, (i*k)-10, my_lcd.Get_Display_Height()-2-12);
}
my_lcd.Set_Draw_color(255,0,0);
for (i=my_lcd.Get_Display_Height()-2-12; i>13; i-=5)
{
my_lcd.Draw_Line(my_lcd.Get_Display_Width()-3, i, (i*k)-10, 12);
}
my_lcd.Set_Draw_color(0,255,255);
for (i=my_lcd.Get_Display_Height()-2-12; i>13; i-=5)
{
my_lcd.Draw_Line(1, i, (my_lcd.Get_Display_Height()-1-12)*k+10-(i*k), 12);
}
my_lcd.Set_Draw_color(0,255,255);
for (int i=13; i<my_lcd.Get_Display_Height()-2-12; i+=5)
{
my_lcd.Draw_Line(my_lcd.Get_Display_Width()-3, i, (my_lcd.Get_Display_Height()-1-12)*k+10-(i*k), my_lcd.Get_Display_Height()-2-12);
}
return micros()- time_start;
}
unsigned long show_random_pixels(void)
{
uint16_t i;
unsigned long time_start = micros();
for(i = 0;i< 10000;i++)
{
my_lcd.Set_Draw_color(random(255),random(255),random(255));
my_lcd.Draw_Pixel(2+random(my_lcd.Get_Display_Width()-4),12+random(my_lcd.Get_Display_Height()-24));
}
return micros()- time_start;
}
unsigned long show_random_lines(void)
{
uint16_t i;
unsigned long time_start = micros();
for(i = 0;i< 300;i++)
{
my_lcd.Set_Draw_color(random(255),random(255),random(255));
my_lcd.Draw_Line(2+random(my_lcd.Get_Display_Width()-4),12+random(my_lcd.Get_Display_Height()-24),2+random(my_lcd.Get_Display_Width()-4),12+random(my_lcd.Get_Display_Height()-24));
}
return micros()- time_start;
}
unsigned long show_random_rectangles(void)
{
uint16_t i;
unsigned long time_start = micros();
for(i = 0;i< 150;i++)
{
my_lcd.Set_Draw_color(random(255),random(255),random(255));
my_lcd.Draw_Rectangle(2+random(my_lcd.Get_Display_Width()-4),12+random(my_lcd.Get_Display_Height()-24),2+random(my_lcd.Get_Display_Width()-4),12+random(my_lcd.Get_Display_Height()-24));
}
return micros()- time_start;
}
unsigned long show_random_round_rectangles(void)
{
uint16_t i;
unsigned long time_start = micros();
for(i = 0;i< 150;i++)
{
my_lcd.Set_Draw_color(random(255),random(255),random(255));
my_lcd.Draw_Round_Rectangle(2+random(my_lcd.Get_Display_Width()-4),13+random(my_lcd.Get_Display_Height()-26),2+random(my_lcd.Get_Display_Width()-4),13+random(my_lcd.Get_Display_Height()-26),5);
}
return micros()- time_start;
}
unsigned long show_random_circles(void)
{
uint16_t i;
unsigned long time_start = micros();
for(i = 0;i< 150;i++)
{
my_lcd.Set_Draw_color(random(255),random(255),random(255));
my_lcd.Draw_Circle(41+random(my_lcd.Get_Display_Width()-82), 52+random(my_lcd.Get_Display_Height()-104), random(40));
}
return micros()- time_start;
}
unsigned long show_random_triangles(void)
{
uint16_t i;
unsigned long time_start = micros();
for(i = 0;i< 150;i++)
{
my_lcd.Set_Draw_color(random(255),random(255),random(255));
my_lcd.Draw_Triangle(2+random(my_lcd.Get_Display_Width()-4),12+random(my_lcd.Get_Display_Height()-24),2+random(my_lcd.Get_Display_Width()-4),12+random(my_lcd.Get_Display_Height()-24),2+random(my_lcd.Get_Display_Width()-4),12+random(my_lcd.Get_Display_Height()-24));
}
return micros()- time_start;
}
unsigned long show_random_bit_map(void)
{
uint16_t buf[48],i;
unsigned long time_start = micros();
int16_t len = (my_lcd.Get_Display_Height()*3/4)/6;
for(i = 0;i< 48; i++)
{
my_lcd.Set_Draw_color(random(255), random(255), random(255));
buf[i] = my_lcd.Get_Draw_color();
}
for(i = 1;i<=5;i++)
{
my_lcd.Draw_Bit_Map(my_lcd.Get_Display_Width()/2-1-((len/2)*4/3+1)*i, my_lcd.Get_Display_Height()/2-1-(len/2)*i, 8, 6, buf, i*(len/6));
delay(100);
}
return micros()- time_start;
}
void clear_screen(void)
{
delay(2000);
my_lcd.Set_Draw_color(0, 0, 0);
my_lcd.Fill_Rectangle(1, 12, my_lcd.Get_Display_Width()-2, my_lcd.Get_Display_Height()-1-12);
}
unsigned long (*show_function[])(void) =
{
show_text,
show_triangle_function,
show_sinewave,
show_fill_rectangle,
show_fill_round_rectangle,
show_fill_circle,
show_fill_triangle,
show_grid_lines,
show_random_pixels,
show_random_lines,
show_random_rectangles,
show_random_round_rectangles,
show_random_circles,
show_random_triangles,
show_random_bit_map,
};
uint8_t *show_str[]=
{
"TEST_TX :",
"TEST_TF :",
"TEST_SW :",
"TEST_FR :",
"TEST_FRR :",
"TEST_FC :",
"TEST_FT :",
"TEST_GL :",
"TEST_RP :",
"TEST_RL :",
"TEST_RR :",
"TEST_RRR :",
"TEST_RC :",
"TEST_RT :",
"TEST_RBM :"
};
unsigned long show_total_time(void)
{
uint16_t i;
unsigned long buf[15];
unsigned long time_start = micros();
for(i = 0;i< 15;i++)
{
buf[i] = show_function[i]();
clear_screen();
}
for(i = 0;i<12; i++)
{
my_lcd.Set_Text_colour(255, 165, 0);
my_lcd.Set_Text_Size(1);
my_lcd.Set_Text_Mode(1);
my_lcd.Print_String(show_str[i], (my_lcd.Get_Display_Width()-120)/2-1, (my_lcd.Get_Display_Height()-96)/2+i*8-1);
my_lcd.Set_Text_colour(0, 255, 0);
my_lcd.Print_Number_Int(buf[i], (my_lcd.Get_Display_Width()-120)/2-1+70, (my_lcd.Get_Display_Height()-96)/2+i*8-1, 0, ' ', 10);
}
delay(5000);
return micros()- time_start;
}
void show_end(unsigned long run_time)
{
my_lcd.Fill_Screen(0, 255, 255);
my_lcd.Set_Draw_color(255, 0, 0);
my_lcd.Fill_Round_Rectangle(my_lcd.Get_Display_Width()/2-1-72+1, my_lcd.Get_Display_Height()/2-1-45+1, my_lcd.Get_Display_Width()/2-1+72-1, my_lcd.Get_Display_Height()/2-1+45-1,5);
my_lcd.Set_Text_colour(0, 255, 255);
my_lcd.Set_Text_Size(1);
my_lcd.Set_Text_Mode(1);
my_lcd.Print_String("Running over!", CENTER, my_lcd.Get_Display_Height()/2-1-30);
my_lcd.Print_String("That's ok!", CENTER, my_lcd.Get_Display_Height()/2-1-20);
my_lcd.Print_String("it will restart.", CENTER, my_lcd.Get_Display_Height()/2-1-10);
my_lcd.Print_String("Please wait ...", CENTER, my_lcd.Get_Display_Height()/2-1);
my_lcd.Set_Text_colour(255, 255, 0);
my_lcd.Print_String("runtime(us):", my_lcd.Get_Display_Width()/2-1-60, my_lcd.Get_Display_Height()/2-1+25);
my_lcd.Set_Text_colour(0, 255, 0);
my_lcd.Print_Number_Int(run_time, my_lcd.Get_Display_Width()/2-1+13, my_lcd.Get_Display_Height()/2-1+25, 0, ' ', 10);
delay(10000);
}
void setup()
{
my_lcd.Init_LCD();
my_lcd.Fill_Screen(0x0);
my_lcd.Set_Rotation(1);
}
void loop()
{
unsigned long total_time;
my_lcd.Fill_Screen(0x0);
total_time = show_total_time();
show_end(total_time);
}
This code is for testing the display and shows various graphical shapes and designs.
