Arduino Projects
Arduino Mega Touch Screen GUI | Mega HMI Touch Screen |TFT 5 inch LCD
Table of Contents
Description:
Arduino Mega Touch Screen GUI– In this video tutorial, you will learn how to create a simple touch screen GUI using Arduino Mega TFT 5 inch Touch LCD. This tutorial explains everything that will help you create your own GUI for a 5-inch TFT touchscreen. In this tutorial, a variable resistor will be used as the sensor to display its value on the HMI touch screen. In this tutorial you will also learn how to make buttons and how to write a program to control some Relay, that can be used to control ac or dc loads.
Amazon Links:
ITDB02 Arduino mega shield 2.1:
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HMI Touch screen Breakout board soldering:
Breakout board for the touch screen
As you can see currently this module cannot be used with the output devices like a relay, led’s, etc, for the external hardware interfacing we will need to make some changes, we will Solder some wires with the desired pins so that it can pass digital signals to the controlling circuit.
started by soldering some jumper wires with the ground and pins 13,12,11 and 10.
This breakout board will be used with Mega. As you can see all the pin’s of the mega are occupied by the breakout board, so that’s why we had to solder jumper wires with the breakout.
Programming of the Touch Screen GUI:
Before you start the programming, first of all, make sure that you download all the necessary libraries. The functions used in this program are explained in the pdf files which you can download by clicking on the links given below.
For the complete program explanation watch video tutorial given at the end of this article.
Download:UTFT
Download:UTFT_Buttons
Download:UTouch
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#include <UTouch.h> #include <UTouchCD.h> #define TOUCH_ORIENTATION LANDSCAPE #include <UTFT_Buttons.h> #include <UTFT.h> #include <avr/pgmspace.h> #include <SoftwareSerial.h> long int bdata; extern uint8_t SmallFont[]; extern uint8_t BigFont[]; extern uint8_t SevenSegNumFont[]; int button1on = 0; // this will be used as a flag for button1 int button2on = 0;// this will be used as a flag for button2 and so on int button3on = 0; int button4on = 0; int alert1 = 0; // this will be used as a flag int relay1 = 13; int relay2 = 12; int relay3 = 11; int relay4 = 10; int sensor1 = A1; // Sensor connected with A0 of the Mega int x, y; char stCurrent[20]=""; int stCurrentLen=0; char stLast[20]=""; int bg[] = { 0, 0, 255}; int fg[] = { 255, 255, 255}; UTFT myGLCD(ITDB50, 38,39,40,41); // Remember to change the model parameter to suit your display module! UTouch myTouch(6,5,4,3,2); extern unsigned int a0[0x76C]; extern unsigned int a1[0x76C]; extern unsigned int a2[0x76C]; extern unsigned int a3[0x76C]; extern unsigned int a4[0x76C]; extern unsigned int a5[0x76C]; extern unsigned int a6[0x76C]; extern unsigned int a7[0x76C]; extern unsigned int a8[0x76C]; extern unsigned int a9[0x76C]; int scale = 3; // for the pic size to make it large or small // for specifying the upper left x coordinates and y coordinates for buttons. // as the buttons will be displayed in the same row so the x values will be different and the y values will be the same. int imagex = 100; //for digit1 int imagey = 200; // for digit1 int imagex2 = 250; // for digit 2 int imagey2 = 200; // for digit2 int imagex3 = 400;// for digit 3 int imagey3 = 200;// for digit 3 // for button1 int button1x1 = 10; // 90 int button1y1 = 20; // 180 int button1x2 = 140; // 220 int button1y2 = 80; // 230 // for button2 int button2x1 = 160; // 160 int button2y1 = 20; // 20 int button2x2 = 290; // 290 int button2y2 = 80; // 80 // for button3 int button3x1 = 310; // 310 int button3y1 = 20; // 20 int button3x2 = 450; // 450 int button3y2 = 80; // 80 // for button4 int button4x1 = 470; // 160 int button4y1 = 20; // 20 int button4x2 = 610; // 290 int button4y2 = 80; // 80 int data1 = 0; // new code // on off codes for device1 long int password1 = 555;// to on long int password2 = 551;// to off //device2 long int password3 = 777; // TO TURN ON long int password31 = 222; // to turn off //device3 long int password4 = 221; // to turn on long int password41 = 444; // to turn off //device4 long int password5 = 441; // to turn on long int password51 = 888; // to turn off // new code end // Finally we set up UTFT_Buttons :) void drawButtons() { // Draw the upper row of buttons myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button1x1, button1y1, button1x2, button1y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button1x1, button1y1, button1x2, button1y2); myGLCD.print(" ON", 50, 40); // 115, 195 myGLCD.setBackColor (0, 0, 255); // button2 codding myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button2x1, button2y1, button2x2, button2y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button2x1, button2y1, button2x2, button2y2); myGLCD.print(" ON", 200, 40); // 115, 195 myGLCD.setBackColor (0, 0, 255); // button3 codding myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button3x1, button3y1, button3x2, button3y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button3x1, button3y1, button3x2, button3y2); myGLCD.print(" ON", 350, 40); // 115, 195 myGLCD.setBackColor (0, 0, 255); // button4 codding myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button4x1, button4y1, button4x2, button4y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button4x1, button4y1, button4x2, button4y2); myGLCD.print(" ON", 500, 40); // 115, 195 myGLCD.setBackColor (0, 0, 255); myGLCD.setColor(fg[1], fg[3], fg[6]); myGLCD.setBackColor (0, 0, 0); myGLCD.print("Device1", 10, 100); myGLCD.print("Device2", 160, 100); myGLCD.print("Device3", 310, 100); myGLCD.print("Device4", 470, 100); // for line myGLCD.drawRect(10, 120, 610, 124); myGLCD.setColor(fg[0], fg[1], fg[2]); // white myGLCD.fillRect(10, 120, 610, 124); // for large rectangle myGLCD.drawRect(10, 130, 610, 450); myGLCD.setColor(fg[255], fg[255], fg[255]); myGLCD.fillRect(10, 130, 610, 450); // for right side rectangle for Alerts display myGLCD.drawRect(615, 10, 800, 450); myGLCD.setColor(fg[50], fg[1], fg[2]); myGLCD.fillRect(615, 10, 800, 450); myGLCD.print("A L E R T S", 620, 20); // rooms making myGLCD.drawBitmap (imagex, imagey, 50, 38, a0, scale); // first digit myGLCD.drawBitmap (imagex2, imagey2, 50, 38, a0, scale); // second digit myGLCD.drawBitmap (imagex3, imagey3, 50, 38, a0, scale); // second digit } void setup() { Serial.begin(9600); Serial3.begin(9600); // bluetooth module connected here pinMode(relay1,OUTPUT); pinMode(relay2,OUTPUT); pinMode(relay3,OUTPUT); pinMode(relay4,OUTPUT); // keep all the relays off digitalWrite(relay1, LOW); digitalWrite(relay2, LOW); digitalWrite(relay3, LOW); digitalWrite(relay4, LOW); pinMode(sensor1, INPUT); // Initial setup myGLCD.InitLCD(); myGLCD.clrScr(); myTouch.InitTouch(); myTouch.setPrecision(PREC_MEDIUM); myGLCD.setFont(BigFont); myGLCD.setBackColor(0, 0, 255); drawButtons(); } void loop() { while (true) { if (myTouch.dataAvailable()) { myTouch.read(); x=myTouch.getX(); y=myTouch.getY(); // FOR BUTTON1 if ((x>=button1x1 && x<=button1x2 && y >=button1y1 && y<=button1y2)&&(button1on == 0) ) // Button: Enter { waitForIt(button1x1, button1y1, button1x2, button1y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button1x1, button1y1, button1x2, button1y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button1x1, button1y1, button1x2, button1y2); myGLCD.print(" OFF", 50, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device1 ON"); Serial3.println("Device1 ON"); digitalWrite(relay1,HIGH); button1on = 1; x=0; y=0; delay(1000); } if ((x>=button1x1 && x<=button1x2 && y >=button1y1 && y<=button1y2)&&(button1on == 1) ) // Button: Enter { waitForIt(button1x1, button1y1, button1x2, button1y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button1x1, button1y1, button1x2, button1y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button1x1, button1y1, button1x2, button1y2); myGLCD.print(" ON", 50, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device1 off"); Serial3.println("Device1 off"); digitalWrite(relay1,LOW); button1on = 0; x=0; y=0; delay(1000); } // for button2 if ((x>=button2x1 && x<=button2x2 && y >=button2y1 && y<=button2y2)&&(button2on == 0) ) // Button: Enter { waitForIt(button2x1, button2y1, button2x2, button2y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button2x1, button2y1, button2x2, button2y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button2x1, button2y1, button2x2, button2y2); myGLCD.print(" OFF", 200, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device2 ON"); digitalWrite(relay2,HIGH); button2on = 1; x=0; y=0; delay(1000); } if ((x>=button2x1 && x<=button2x2 && y >=button2y1 && y<=button2y2)&&(button2on == 1) ) // Button: Enter { waitForIt(button2x1, button2y1, button2x2, button2y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button2x1, button2y1, button2x2, button2y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button2x1, button2y1, button2x2, button2y2); myGLCD.print(" ON", 200, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device2 off"); digitalWrite(relay2,LOW); button2on = 0; x=0; y=0; delay(1000); } // for button3 if ((x>=button3x1 && x<=button3x2 && y >=button3y1 && y<=button3y2)&&(button3on == 0) ) // Button: Enter { waitForIt(button3x1, button3y1, button3x2, button3y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button3x1, button3y1, button3x2, button3y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button3x1, button3y1, button3x2, button3y2); myGLCD.print(" OFF", 350, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device3 ON"); digitalWrite(relay3,HIGH); button3on = 1; x=0; y=0; delay(1000); } if ((x>=button3x1 && x<=button3x2 && y >=button3y1 && y<=button3y2)&&(button3on == 1) ) // Button: Enter { waitForIt(button3x1, button3y1, button3x2, button3y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button3x1, button3y1, button3x2, button3y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button3x1, button3y1, button3x2, button3y2); myGLCD.print(" ON", 350, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device3 off"); digitalWrite(relay3,LOW); button3on = 0; x=0; y=0; delay(1000); } // for button4 if ((x>=button4x1 && x<=button4x2 && y >=button4y1 && y<=button4y2)&&(button4on == 0) ) // Button: Enter { waitForIt(button4x1, button4y1, button4x2, button4y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button4x1, button4y1, button4x2, button4y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button4x1, button4y1, button4x2, button4y2); myGLCD.print(" OFF", 500, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device4 ON"); digitalWrite(relay4,HIGH); button4on = 1; x=0; y=0; delay(1000); } if ((x>=button4x1 && x<=button4x2 && y >=button4y1 && y<=button4y2)&&(button4on == 1) ) // Button: Enter { waitForIt(button4x1, button4y1, button4x2, button4y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button4x1, button4y1, button4x2, button4y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button4x1, button4y1, button4x2, button4y2); myGLCD.print(" ON", 500, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device4 Off"); digitalWrite(relay4,LOW); button4on = 0; x=0; y=0; delay(1000); } } int sensor, data, d1,d2,d3; sensor = analogRead(sensor1); // any sensor // new code from here myGLCD.setBackColor(0,0,0); myGLCD.setColor(fg[0], fg[1], fg[2]); // for white color if( sensor > 600 && alert1 == 1 ) { myGLCD.print("Sensor1:", 620, 80); myGLCD.print("exceeded", 640, 100); alert1 = 0; } if( sensor < 600 && alert1 == 0 ) { myGLCD.print("Sensor1:", 620, 80); myGLCD.print("Normal ", 640, 100); alert1 = 1; } Serial.println(sensor); // send sensor value to bluetooth Serial3.println(sensor); // new code end here data = sensor / 10; d3 = sensor % 10; d2 = data % 10; d1 = data / 10; // for digit3 if ( d3 == 0) myGLCD.drawBitmap (imagex3, imagey3, 50, 38, a0, scale); if ( d3 == 1) myGLCD.drawBitmap (imagex3, imagey3, 50, 38, a1, scale); if ( d3 == 2) myGLCD.drawBitmap (imagex3, imagey3, 50, 38, a2, scale); if ( d3 == 3) myGLCD.drawBitmap (imagex3, imagey3, 50, 38, a3, scale); if ( d3 == 4) myGLCD.drawBitmap (imagex3, imagey3, 50, 38, a4, scale); if ( d3 == 5) myGLCD.drawBitmap (imagex3, imagey3, 50, 38, a5, scale); if ( d3 == 6) myGLCD.drawBitmap (imagex3, imagey3, 50, 38, a6, scale); if ( d3 == 7) myGLCD.drawBitmap (imagex3, imagey3, 50, 38, a7, scale); if ( d3 == 8) myGLCD.drawBitmap (imagex3, imagey3, 50, 38, a8, scale); if ( d3 == 9) myGLCD.drawBitmap (imagex3, imagey3, 50, 38, a9, scale); // for 2nd digit if ( d2 == 0) myGLCD.drawBitmap (imagex2, imagey2, 50, 38, a0, scale); // second digit if ( d2 == 1) myGLCD.drawBitmap (imagex2, imagey2, 50, 38, a1, scale); // second digit if ( d2 == 2) myGLCD.drawBitmap (imagex2, imagey2, 50, 38, a2, scale); // second digit if ( d2 == 3) myGLCD.drawBitmap (imagex2, imagey2, 50, 38, a3, scale); // second digit if ( d2 == 4) myGLCD.drawBitmap (imagex2, imagey2, 50, 38, a4, scale); // second digit if ( d2 == 5) myGLCD.drawBitmap (imagex2, imagey2, 50, 38, a5, scale); // second digit if ( d2 == 6) myGLCD.drawBitmap (imagex2, imagey2, 50, 38, a6, scale); // second digit if ( d2 == 7) myGLCD.drawBitmap (imagex2, imagey2, 50, 38, a7, scale); // second digit if ( d2 == 8) myGLCD.drawBitmap (imagex2, imagey2, 50, 38, a8, scale); // second digit if ( d2 == 9) myGLCD.drawBitmap (imagex2, imagey2, 50, 38, a9, scale); // second digit // for the first digit if ( d1 == 0) myGLCD.drawBitmap (imagex, imagey, 50, 38, a0, scale); if ( d1 == 1) myGLCD.drawBitmap (imagex, imagey, 50, 38, a1, scale); if ( d1 == 2) myGLCD.drawBitmap (imagex, imagey, 50, 38, a2, scale); if ( d1 == 3) myGLCD.drawBitmap (imagex, imagey, 50, 38, a3, scale); if ( d1 == 4) myGLCD.drawBitmap (imagex, imagey, 50, 38, a4, scale); if ( d1 == 5) myGLCD.drawBitmap (imagex, imagey, 50, 38, a5, scale); if ( d1 == 6) myGLCD.drawBitmap (imagex, imagey, 50, 38, a6, scale); if ( d1 == 7) myGLCD.drawBitmap (imagex, imagey, 50, 38, a7, scale); if ( d1 == 8) myGLCD.drawBitmap (imagex, imagey, 50, 38, a8, scale); if ( d1 == 9) myGLCD.drawBitmap (imagex, imagey, 50, 38, a9, scale); if(Serial3.available()>0) { bdata = Serial3.parseInt(); //delay(200); Serial.print(bdata); if (bdata == password1) { waitForIt(button1x1, button1y1, button1x2, button1y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button1x1, button1y1, button1x2, button1y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button1x1, button1y1, button1x2, button1y2); myGLCD.print(" OFF", 50, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device1 ON"); Serial3.println("Device1 ON"); digitalWrite(relay1,HIGH); button1on = 1; x=0; y=0; delay(1000); } if( bdata == password2) { waitForIt(button1x1, button1y1, button1x2, button1y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button1x1, button1y1, button1x2, button1y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button1x1, button1y1, button1x2, button1y2); myGLCD.print(" ON", 50, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device1 off"); Serial3.println("Device1 off"); digitalWrite(relay1,LOW); button1on = 0; x=0; y=0; delay(1000); } if (bdata == password3 ) // Button: Enter { waitForIt(button2x1, button2y1, button2x2, button2y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button2x1, button2y1, button2x2, button2y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button2x1, button2y1, button2x2, button2y2); myGLCD.print(" OFF", 200, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device2 ON"); Serial3.println("Device2 ON"); digitalWrite(relay2,HIGH); button2on = 1; x=0; y=0; delay(1000); } if (bdata == password31 ) // Button: Enter { waitForIt(button2x1, button2y1, button2x2, button2y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button2x1, button2y1, button2x2, button2y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button2x1, button2y1, button2x2, button2y2); myGLCD.print(" ON", 200, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device2 off"); Serial3.println("Device2 off"); digitalWrite(relay2,LOW); button2on = 0; x=0; y=0; delay(1000); } // for button3 if (bdata == password4 ) // Button: Enter { waitForIt(button3x1, button3y1, button3x2, button3y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button3x1, button3y1, button3x2, button3y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button3x1, button3y1, button3x2, button3y2); myGLCD.print(" OFF", 350, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device3 ON"); Serial3.println("Device3 ON"); digitalWrite(relay3,HIGH); button3on = 1; x=0; y=0; delay(1000); } if (bdata == password41 ) // Button: Enter { waitForIt(button3x1, button3y1, button3x2, button3y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button3x1, button3y1, button3x2, button3y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button3x1, button3y1, button3x2, button3y2); myGLCD.print(" ON", 350, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device3 off"); Serial.println("Device3 Off"); digitalWrite(relay3,LOW); button3on = 0; x=0; y=0; delay(1000); } // for button4 if (bdata == password5 ) // Button: Enter { waitForIt(button4x1, button4y1, button4x2, button4y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button4x1, button4y1, button4x2, button4y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button4x1, button4y1, button4x2, button4y2); myGLCD.print(" OFF", 500, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device4 ON"); Serial.println("Device4 ON"); digitalWrite(relay4,HIGH); button4on = 1; x=0; y=0; delay(1000); } if (bdata == password51 ) // Button: Enter { waitForIt(button4x1, button4y1, button4x2, button4y2); myGLCD.setColor(bg[0], bg[1], bg[2]); myGLCD.fillRoundRect (button4x1, button4y1, button4x2, button4y2); myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (button4x1, button4y1, button4x2, button4y2); myGLCD.print(" ON", 500, 40); myGLCD.setBackColor (0, 0, 255); Serial.println("Device4 Off"); Serial.println("Device4 Off"); digitalWrite(relay4,LOW); button4on = 0; x=0; y=0; delay(1000); } } } } void waitForIt(int x1, int y1, int x2, int y2) { myGLCD.setColor(255, 0, 0); myGLCD.drawRoundRect (x1, y1, x2, y2); while (myTouch.dataAvailable()){ } delay(20); // list all files in the card with date and size myGLCD.setColor(fg[0], fg[1], fg[2]); myGLCD.drawRoundRect (x1, y1, x2, y2); } |
