initial commit

2025-03-21 09:59:09 +01:00
parent 59637f4fa8
commit f690d03c57
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+/**
+ *
+ * @license MIT License
+ *
+ * Copyright (c) 2022 lewis he
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * @file      GT911_GetPoint.ino
+ * @author    Lewis He (lewishe@outlook.com)
+ * @date      2023-04-12
+ *
+ */
+#include <Wire.h>
+#include <SPI.h>
+#include <Arduino.h>
+#include "TouchDrvGT911.hpp"
+
+#ifndef TOUCH_SDA
+#define TOUCH_SDA  2
+#endif
+
+#ifndef TOUCH_SCL
+#define TOUCH_SCL  3
+#endif
+
+#ifndef TOUCH_IRQ
+#define TOUCH_IRQ  1
+#endif
+
+#ifndef TOUCH_RST
+#define TOUCH_RST  10
+#endif
+
+TouchDrvGT911 touch;
+int16_t x[5], y[5];
+
+
+
+void setup()
+{
+    Serial.begin(115200);
+    while (!Serial);
+
+    // If the reset pin and interrupt pin can be controlled by GPIO, the device address can be set arbitrarily
+    // If the interrupt and reset pins are not connected, you can pass in the -1 parameter and the library will automatically determine the address.
+    touch.setPins(TOUCH_RST, TOUCH_IRQ);
+    if (!touch.begin(Wire, GT911_SLAVE_ADDRESS_L, TOUCH_SDA, TOUCH_SCL)) {
+        while (1) {
+            Serial.println("Failed to find GT911 - check your wiring!");
+            delay(1000);
+        }
+    }
+
+    Serial.println("Init GT911 Sensor success!");
+
+    // Set the center button to trigger the callback , Only for specific devices, e.g LilyGo-EPD47 S3 GT911
+    touch.setHomeButtonCallback([](void *user_data) {
+        Serial.println("Home button pressed!");
+    }, NULL);
+
+
+    /*
+    *   GT911 Interrupt mode ,It is not recommended to modify any touch settings
+    *   Please do not modify the touch interrupt mode without a touch screen configuration file, 
+    *   otherwise the touch screen may become unusable.
+    * * */
+    // Low level when idle, converts to high level when touched
+    // touch.setInterruptMode(HIGH_LEVEL_QUERY);
+
+    // Keep low level when idle, and trigger on the falling edge after touching, trigger once at a frequency of 100HZ, and keep high level for 10ms
+    // touch.setInterruptMode(RISING);
+
+    // Keep high level when idle, and switch to low level when touched
+    // touch.setInterruptMode(LOW_LEVEL_QUERY);
+
+    // Maintains high level when idle, and is triggered by the falling edge after being touched. The frequency is 100HZ and is triggered once. Maintains 10ms in the low level interval
+    // touch.setInterruptMode(FALLING);
+
+}
+
+
+void loop()
+{
+    if (touch.isPressed()) {
+        uint8_t touched = touch.getPoint(x, y, touch.getSupportTouchPoint());
+        if (touched > 0) {
+            Serial.print(millis());
+            Serial.print("ms ");
+            for (int i = 0; i < touched; ++i) {
+                Serial.print("X[");
+                Serial.print(i);
+                Serial.print("]:");
+                Serial.print(x[i]);
+                Serial.print(" ");
+                Serial.print(" Y[");
+                Serial.print(i);
+                Serial.print("]:");
+                Serial.print(y[i]);
+                Serial.print(" ");
+            }
+            Serial.println();
+        }
+    }
+    delay(100);
+}
+
+
+