From 26b0cd2ab3b8a6d243f0b45167dace0caf4fe67d Mon Sep 17 00:00:00 2001
From: Sebastian Nieto <sebanieto@gmail.com>
Date: Mon, 21 Sep 2026 23:43:56 -0300
Subject: [PATCH] perf(touch): maxima sensibilidad tactil con swipe en tiempo
 real a 28px y umbral Z a 65

---
 .../obd2_gauge/XPT2046_TouchscreenSOFTSPI.cpp |  4 +-
 sketch/obd2_gauge/obd2_gauge.ino              | 61 ++++++++++++++-----
 sketch/obd2_gauge/touchscreen.h               |  2 +-
 3 files changed, 49 insertions(+), 18 deletions(-)

diff --git a/sketch/obd2_gauge/XPT2046_TouchscreenSOFTSPI.cpp b/sketch/obd2_gauge/XPT2046_TouchscreenSOFTSPI.cpp
index 9292dcd..ea78ecc 100644
--- a/sketch/obd2_gauge/XPT2046_TouchscreenSOFTSPI.cpp
+++ b/sketch/obd2_gauge/XPT2046_TouchscreenSOFTSPI.cpp
@@ -22,8 +22,8 @@
 
 #include "XPT2046_TouchscreenSOFTSPI.h"
 
-#define Z_THRESHOLD     170
-#define Z_THRESHOLD_INT	100
+#define Z_THRESHOLD     65
+#define Z_THRESHOLD_INT	50
 #define MSEC_THRESHOLD  3
 #define SPI_SETTING     SPISettings(2000000, MSBFIRST, SPI_MODE0)
 
diff --git a/sketch/obd2_gauge/obd2_gauge.ino b/sketch/obd2_gauge/obd2_gauge.ino
index 816ca45..3b83b45 100644
--- a/sketch/obd2_gauge/obd2_gauge.ino
+++ b/sketch/obd2_gauge/obd2_gauge.ino
@@ -614,19 +614,50 @@ void loop() {
       lastTouchX = touchX;
       lastTouchY = touchY;
 
-      // Long press check: only trigger if finger was held stationary (displacement < 30px)
-      int16_t currentDistX = abs((int16_t)lastTouchX - (int16_t)touchStartX);
-      int16_t currentDistY = abs((int16_t)lastTouchY - (int16_t)touchStartY);
+      int16_t liveDeltaX = (int16_t)lastTouchX - (int16_t)touchStartX;
+      int16_t liveDeltaY = (int16_t)lastTouchY - (int16_t)touchStartY;
 
-      if (!longPressHandled && (millis() - touchStartTime > 1000) && currentDistX < 30 && currentDistY < 30) {
-        // Long press (> 1s): Open Config Menu immediately!
-        longPressHandled = true;
-        touchBeep(); // Confirmation chirp
-        configMenu();
-        waitForTouchRelease();
-        lastActivityTime = millis();
-        initScreen();
-        isTouching = false;
+      // FAST LIVE SWIPE DETECTION:
+      // Trigger immediately as soon as finger moves >= 28px horizontally (no need to lift or press hard)
+      if (!longPressHandled) {
+        if (liveDeltaX < -28 && abs(liveDeltaY) < 85) {
+          // SWIPE LEFT: Page 0 -> Page 1 (Tri-Temperature Screen)
+          longPressHandled = true;
+          if (fullScreenCell != -1) {
+            fullScreenCell = -1;
+          }
+          if (currentScreenPage == 0) {
+            animateSlideTransition(true);
+            currentScreenPage = 1;
+            initScreen();
+          }
+          waitForTouchRelease();
+          isTouching = false;
+          lastActivityTime = millis();
+        } else if (liveDeltaX > 28 && abs(liveDeltaY) < 85) {
+          // SWIPE RIGHT: Page 1 -> Page 0 (4 Quadrants)
+          longPressHandled = true;
+          if (fullScreenCell != -1) {
+            fullScreenCell = -1;
+          }
+          if (currentScreenPage == 1) {
+            animateSlideTransition(false);
+            currentScreenPage = 0;
+            initScreen();
+          }
+          waitForTouchRelease();
+          isTouching = false;
+          lastActivityTime = millis();
+        } else if ((millis() - touchStartTime > 1000) && abs(liveDeltaX) < 20 && abs(liveDeltaY) < 20) {
+          // Long press (> 1s) held stationary: Open Config Menu immediately!
+          longPressHandled = true;
+          touchBeep(); // Confirmation chirp
+          configMenu();
+          waitForTouchRelease();
+          lastActivityTime = millis();
+          initScreen();
+          isTouching = false;
+        }
       }
     }
   } else {
@@ -638,8 +669,8 @@ void loop() {
         int16_t deltaX = (int16_t)lastTouchX - (int16_t)touchStartX;
         int16_t deltaY = (int16_t)lastTouchY - (int16_t)touchStartY;
 
-        // Balanced swipe detection: 40px displacement required, horizontal gesture
-        if (deltaX < -40 && abs(deltaY) < 90) {
+        // Quick flick swipe fallback in case finger was lifted very rapidly
+        if (deltaX < -25 && abs(deltaY) < 85) {
           // SWIPE LEFT: Page 0 -> Page 1 (Tri-Temperature Screen)
           if (fullScreenCell != -1) {
             fullScreenCell = -1;
@@ -649,7 +680,7 @@ void loop() {
             currentScreenPage = 1;
             initScreen();
           }
-        } else if (deltaX > 40 && abs(deltaY) < 90) {
+        } else if (deltaX > 25 && abs(deltaY) < 85) {
           // SWIPE RIGHT: Page 1 -> Page 0 (4 Quadrants)
           if (fullScreenCell != -1) {
             fullScreenCell = -1;
diff --git a/sketch/obd2_gauge/touchscreen.h b/sketch/obd2_gauge/touchscreen.h
index 3cf45a9..26541d2 100644
--- a/sketch/obd2_gauge/touchscreen.h
+++ b/sketch/obd2_gauge/touchscreen.h
@@ -24,7 +24,7 @@ bool getTouch(uint16_t *x, uint16_t *y) {
     TS_Point p = ts.getPoint(tsSoftSpi);
 
     // Filter noise: require valid touch pressure and coordinates within active screen
-    if (p.z < 160) return false;
+    if (p.z < 60) return false;
     if (p.x < 150 || p.x > 3850 || p.y < 150 || p.y > 3850) return false;
 
     int16_t tx = map(p.x, 200, 3700, 0, 320);