Helo everyone !
I'm using an 3.5" touch display with ESP32-WROOM and I have loaded the file "MCUFRIEND_kbv/button simple", after running the "TouchScreen_Calibr_native.ino" with the following result:
const int XP=27,XM=15,YP=4,YM=14; //320x480 ID=0x9486
const int TS_LEFT=919,TS_RT=131,TS_TOP=947,TS_BOT=49;
PORTRAIT CALIBRATION 320 x 480
x = map(p.x, LEFT=919, RT=131, 0, 320)
y = map(p.y, TOP=947, BOT=49, 0, 480)
LANDSCAPE CALIBRATION 480 x 320
x = map(p.y, LEFT=947, RT=49, 0, 480)
y = map(p.x, TOP=131, BOT=919, 0, 320)
I made the appropriate substitutions in the main file, and the 3.5" display shows me only a red rectangle with two buttons underneath, one "ON" and one "OFF," but both do not react to pushing them, causing everything to remain unchanged.
I honestly had been expecting any graphical reaction.
Where am I going wrong or omitting something?
Below, I enclose the code "Button_simple.ino"
Thank you for your help,
Roberto
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#if 1
#include <Adafruit_GFX.h>
#include <MCUFRIEND_kbv.h>
MCUFRIEND_kbv tft;
#include <TouchScreen.h>
#define MINPRESSURE 200
#define MAXPRESSURE 1000
// ALL Touch panels and wiring is DIFFERENT
// copy-paste results from TouchScreen_Calibr_native.ino
const int XP = 27, XM = 15, YP = 4, YM = 14; //ID=0x9341
const int TS_LEFT = 919, TS_RT = 131, TS_TOP = 947, TS_BOT = 49;
TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);
Adafruit_GFX_Button on_btn, off_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);
on_btn.initButton(&tft, 60, 200, 100, 40, WHITE, CYAN, BLACK, "ON", 2);
off_btn.initButton(&tft, 180, 200, 100, 40, WHITE, CYAN, BLACK, "OFF", 2);
on_btn.drawButton(false);
off_btn.drawButton(false);
tft.fillRect(40, 80, 160, 80, RED);
}
/* two buttons are quite simple
*/
void loop(void)
{
bool down = Touch_getXY();
on_btn.press(down && on_btn.contains(pixel_x, pixel_y));
off_btn.press(down && off_btn.contains(pixel_x, pixel_y));
if (on_btn.justReleased())
on_btn.drawButton();
if (off_btn.justReleased())
off_btn.drawButton();
if (on_btn.justPressed()) {
on_btn.drawButton(true);
tft.fillRect(40, 80, 160, 80, GREEN);
}
if (off_btn.justPressed()) {
off_btn.drawButton(true);
tft.fillRect(40, 80, 160, 80, RED);
}
}
#endif