cst9217_get_point.ino

Go to the documentation of this file.

 
#include <TouchDrv.hpp>
#include <SensorWireHelper.h>
 
#ifndef TOUCH_SDA
#define TOUCH_SDA  8
#endif
 
#ifndef TOUCH_SCL
#define TOUCH_SCL  10
#endif
 
#ifndef TOUCH_IRQ
#define TOUCH_IRQ  5
#endif
 
#ifndef TOUCH_RST
#define TOUCH_RST  -1
#endif
 
TouchDrvCST92xx touch;
volatile bool isPressed = false;
 
void setup()
{
    Serial.begin(115200);
    while (!Serial);
 
#if TOUCH_RST != -1
    pinMode(TOUCH_RST, OUTPUT);
    digitalWrite(TOUCH_RST, LOW);
    delay(30);
    digitalWrite(TOUCH_RST, HIGH);
    delay(50);
    delay(1000);
#endif
 
#if (defined(ARDUINO_ARCH_RP2040) || defined(ARDUINO_ARCH_STM32)) && !defined(ARDUINO_ARCH_MBED)
    Wire.setSCL(TOUCH_SCL);
    Wire.setSDA(TOUCH_SDA);
    Wire.begin();
#elif defined(ARDUINO_ARCH_NRF52)
    Wire.setPins(TOUCH_SDA, TOUCH_SCL);
    Wire.begin();
#elif defined(ARDUINO_ARCH_ESP32)
    Wire.begin(TOUCH_SDA, TOUCH_SCL);
#else
    Wire.begin();
#endif
 
    // Scan I2C devices
    SensorWireHelper::dumpDevices(Wire);
 
    // uint8_t touchAddress = 0x1A;        // Other device addresses are determined by the touch firmware and are generally 0X5A by default.
    uint8_t touchAddress = 0x5A;     // The device address is determined according to the actual situation. Not all device addresses are 0X5A. There can also be other customized device addresses.
 
 
    // Set to skip register check, used when the touch device address conflicts with other I2C device addresses [0x5A]
    // touch.jumpCheck();
 
 
    touch.setPins(TOUCH_RST, TOUCH_IRQ);
    bool result = touch.begin(Wire, touchAddress, TOUCH_SDA, TOUCH_SCL);
    if (result == false) {
        Serial.println("touch is not online...");
        while (1)delay(1000);
    }
    Serial.print("Model :"); Serial.println(touch.getModelName());
 
    touch.setCoverScreenCallback([](void *ptr) {
        Serial.print(millis());
        Serial.println(" : The screen is covered");
    }, NULL);
 
 
    // Serial.println("Enter touch sleep mode.");
    // Unable to obtain coordinates after turning on sleep
    // CST9217 Work current ~= 1.3mA
    // CST9217 sleep current = 3.4 uA
    // touch.sleep();
 
    // int i = 10;
    // while (i--) {
    //     Serial.print("Wake up after ");
    //     Serial.print(i);
    //     Serial.println(" seconds");
    //     delay(1000);
    // }
 
 
    // Wakeup touch
    // touch.reset();
 
    // Set touch max xy
    // touch.setMaxCoordinates(240, 296);
 
    // Set swap xy
    // touch.setSwapXY(true);
 
    // Set mirror xy
    // touch.setMirrorXY(true, true);
 
}
 
void loop()
{
    TouchPoints touch_points = touch.getTouchPoints();
    if (touch_points.hasPoints()) {
        for (int i = 0; i < touch_points.getPointCount(); ++i) {
            const TouchPoint &point = touch_points.getPoint(i);
            Serial.print("X[");
            Serial.print(i);
            Serial.print("]:");
            Serial.print(point.x);
            Serial.print(" ");
            Serial.print(" Y[");
            Serial.print(i);
            Serial.print("]:");
            Serial.print(point.y);
            Serial.print(" ");
        }
        Serial.println();
    }
    delay(30);
}