Sebastian Nieto
d124d013ab
- Buffer de transicion persistente (sprTrans) de 25KB asignado una sola vez en setup() para evitar fallos de memoria heap contigua - Eliminacion de carga y descarga dinamica de fuentes en renderPage2ToSprite durante las transiciones para evitar fugas de RAM - Timeout de seguridad por hardware de 250ms en waitForTouchRelease() para prevenir bloqueos por ruido en la lamina resistiva - Pantallas 2 y 3: Reloj atomico GPS con DSEG7 de 80pt y Telemetria satelital completa (rumbo, satelites, altitud, coordenadas) - Documentacion de conexion y pines para modulo GPS N32+/U-blox
70 lines
No EOL
1.7 KiB
C
70 lines
No EOL
1.7 KiB
C
#pragma once
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#include "SoftSPI.h"
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#include "XPT2046_TouchscreenSOFTSPI.h"
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// Touchscreen pins for Cheap Yellow Display (CYD)
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#define XPT2046_MOSI 32 // T_DIN
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#define XPT2046_MISO 39 // T_OUT
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#define XPT2046_CLK 25 // T_CLK
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#define XPT2046_CS 33 // T_CS
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extern SoftSPI *tsSoftSpi;
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extern XPT2046_TouchscreenSOFTSPI ts;
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#define TFT_GREY 0x5AEB
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#define _height 240
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#define _width 320
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// Get mapped touchscreen coordinates in landscape (320x240)
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bool getTouch(uint16_t *x, uint16_t *y) {
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if (!tsSoftSpi)
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return false;
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if (ts.touched(tsSoftSpi)) {
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TS_Point p = ts.getPoint(tsSoftSpi);
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// Filter noise: require valid touch pressure and coordinates within active
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// screen
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if (p.z < 160)
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return false;
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if (p.x < 150 || p.x > 3850 || p.y < 150 || p.y > 3850)
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return false;
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int16_t tx = map(p.x, 200, 3700, 0, 320);
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int16_t ty = map(p.y, 240, 3800, 0, 240);
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*x = constrain(tx, 0, 319);
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*y = constrain(ty, 0, 239);
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return true;
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}
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return false;
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}
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// Direct touch check using pressure Z
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inline bool isScreenPressed() {
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if (!tsSoftSpi)
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return false;
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return ts.touched(tsSoftSpi);
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}
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// Wait until both touchscreen and selector button are completely released with
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// 30ms continuous debounce and 250ms maximum hardware safety timeout
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inline void waitForTouchRelease() {
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uint16_t dummyX, dummyY;
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uint8_t releaseCount = 0;
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uint32_t startWait = millis();
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while (releaseCount < 3 && (millis() - startWait < 250)) {
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if (getTouch(&dummyX, &dummyY) || (digitalRead(SELECTOR_PIN) == LOW)) {
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releaseCount = 0;
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} else {
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releaseCount++;
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}
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delay(10);
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yield();
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}
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}
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void touch_calibrate() {
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// Calibration placeholder for backward compatibility
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} |