Arduino Touchscreen Inverted touch

Other Hardware Displays
1

Good day I am making a project where I will use Touchscreen ( 240x320 id=0x9340 ) to control relay, The problem is in the screen when i touch the left side button, the buttons in the right are the one responding... here is the code



#include <Adafruit_GFX.h>
#include <MCUFRIEND_kbv.h>
MCUFRIEND_kbv tft;
#include <TouchScreen.h>
#define MINPRESSURE 500
#define MAXPRESSURE 1000

int R1= 13
;int R2=12;
int  R3=11;
int  R4=10 ;


;
// ALL Touch panels and wiring is DIFFERENT
// copy-paste results from TouchScreen_Calibr_native.ino
//const int XP = 8, XM = A2, YP = A3, YM = 9; //ID=0x9341
const int XP=6,XM=A2,YP=A1,YM=7; //ID=0x9341
const int TS_LEFT = 907, TS_RT = 136, TS_TOP = 942, TS_BOT = 139;

TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);

Adafruit_GFX_Button  Fon_btn, Foff_btn ,Bon_btn,Boff_btn,Lon_btn,Loff_btn,Hon_btn,Hoff_btn;

int pixel_x, pixel_y;     //Touch_getXY() updates global vars
bool Touch_getXY(void)
{
    TSPoint p = ts.getPoint();
    pinMode(YP, OUTPUT);      //restore shared pins
    pinMode(XM, OUTPUT);
    digitalWrite(YP, HIGH);   //because TFT control pins
    digitalWrite(XM, HIGH);
    bool pressed = (p.z > MINPRESSURE && p.z < MAXPRESSURE);
    if (pressed) {
        pixel_x = map(p.x, TS_LEFT, TS_RT, 0, tft.width()); //.kbv makes sense to me
        pixel_y = map(p.y, TS_TOP, TS_BOT, 0, tft.height());
    }
    return pressed;
}

#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(void)
{
    Serial.begin(9600);
    uint16_t ID = tft.readID();
    Serial.print("TFT ID = 0x");
    Serial.println(ID, HEX);
    Serial.println("Calibrate for your Touch Panel");
    if (ID == 0xD3D3) ID = 0x9486; // write-only shield
    tft.begin(ID);
    tft.setRotation(0);            //PORTRAIT
    tft.fillScreen(BLACK);
    Fon_btn.initButton(&tft,  60, 050, 100, 40, WHITE, CYAN, BLACK, "Vac On", 2);
    Foff_btn.initButton(&tft, 180, 050, 100, 40, WHITE, CYAN, BLACK, "Vac Off", 2);
    Fon_btn.drawButton(false);
     Foff_btn.drawButton(false);
    Bon_btn.initButton(&tft,  60, 110, 100, 40, WHITE, CYAN, BLACK, "Cam ON", 2);
    Boff_btn.initButton(&tft, 180, 110, 100, 40, WHITE, CYAN, BLACK, "Cam Off", 2);
    Bon_btn.drawButton(false);
    Boff_btn.drawButton(false);
    Lon_btn.initButton(&tft,  60, 180, 100, 40, WHITE, CYAN, BLACK, "Led ON", 2);
    Loff_btn.initButton(&tft, 180, 180, 100, 40, WHITE, CYAN, BLACK, "Led Off", 2);
    Lon_btn.drawButton(false);
    Loff_btn.drawButton(false);
    Hon_btn.initButton(&tft,  60, 250, 100, 40, WHITE, CYAN, BLACK, "UV ON", 2);
    Hoff_btn.initButton(&tft, 180, 250, 100, 40, WHITE, CYAN, BLACK, "UV Off", 2);
    Hon_btn.drawButton(false);
    Hoff_btn.drawButton(false);
    digitalWrite(R1, HIGH);
    digitalWrite(R2, HIGH);
    digitalWrite(R3, HIGH);
    digitalWrite(R4, HIGH);
    pinMode(R1, OUTPUT);
    pinMode(R2, OUTPUT);
    pinMode(R3, OUTPUT);
    pinMode(R4, OUTPUT);
}

/* two buttons are quite simple
 */
void loop(void)
{
    bool down = Touch_getXY();
    Fon_btn.press(down && Fon_btn.contains(pixel_x, pixel_y));
    Foff_btn.press(down && Foff_btn.contains(pixel_x, pixel_y));
    Bon_btn.press(down && Bon_btn.contains(pixel_x, pixel_y));
    Boff_btn.press(down && Boff_btn.contains(pixel_x, pixel_y));
    Lon_btn.press(down && Lon_btn.contains(pixel_x, pixel_y));
    Loff_btn.press(down && Loff_btn.contains(pixel_x, pixel_y));
    Hon_btn.press(down && Hon_btn.contains(pixel_x, pixel_y));
    Hoff_btn.press(down && Hoff_btn.contains(pixel_x, pixel_y));
    
    if (Fon_btn.justReleased())
       Fon_btn.drawButton(false);
    if (Foff_btn.justReleased())
        Foff_btn.drawButton(false);
    if (Fon_btn.justPressed()) {
        Fon_btn.drawButton(true);
        digitalWrite(R1, LOW);
    }
    if (Foff_btn.justPressed()) {
        Foff_btn.drawButton(true);
        digitalWrite(R1, HIGH);
    }
   if (Bon_btn.justReleased())
       Bon_btn.drawButton(false);
    if (Boff_btn.justReleased())
        Boff_btn.drawButton(false);
    if (Bon_btn.justPressed()) {
        Bon_btn.drawButton(true);
        digitalWrite(R2, LOW);
    }
    if (Boff_btn.justPressed()) {
        Boff_btn.drawButton(true);
        digitalWrite(R2, HIGH);}

        if (Lon_btn.justReleased())
       Lon_btn.drawButton(false);
    if (Loff_btn.justReleased())
        Loff_btn.drawButton(false);
    if (Lon_btn.justPressed()) {
        Lon_btn.drawButton(true);
        digitalWrite(R3, LOW);
    }
    if (Loff_btn.justPressed()) {
        Loff_btn.drawButton(true);
        digitalWrite(R3, HIGH);
    }
    if (Hon_btn.justReleased())
       Hon_btn.drawButton(false);
    if (Hoff_btn.justReleased())
        Hoff_btn.drawButton(false);
    if (Hon_btn.justPressed()) {
        Hon_btn.drawButton(true);
        digitalWrite(R4, LOW);
    }
    if (Hoff_btn.justPressed()) {
        Hoff_btn.drawButton(true);
        digitalWrite(R4, HIGH);
    }
    }
2

@brandon474

Your topic was moved to its current location as it is more suitable.

Could you also take a few moments to Learn How To Use The Forum.

It will help you get the best out of the forum in the future.

Thank you

3

Try:

pixel_x = map(p.x, TS_RT, TS_LEFT, 0, tft.width());

Or;

pixel_x = map(p.x, TS_LEFT, TS_RT, tft.width(), 0);
4

thankk youuu!!

1 Like
5

2 posts were merged into an existing topic: Touchscreen to 3 channel Relay, when plugged in all the relay is turned on

6

@brandon474, do not cross-post. Thread split.

7

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.