EthercatDevice_DmpLCD.isTouched()

[EthercatDevice_DmpLCD_Generic]

描述

Get the number of touch points on the touchscreen of the EtherCAT slave device. For devices that only support single-touch, this function can be used to check if the screen is being touched.

衍生類別：

語法

int isTouched();

參數

無

Return Values

Return the number of touch points on the touchscreen. If the return value is less than 0, it indicates an 錯誤代碼.

備註

This function must be called after a successful execution of EthercatMaster::start() and before EthercatMaster::stop(). This function is non-blocking and can be called within the callback functions.

範例

#include "Ethercat.h"

EthercatMaster master;
EthercatDevice_QECR00UN01 slave;

void setup() {
  Serial.begin(115200);

  master.begin();
  slave.attach(0, master);
  slave.lcdInit(ECAT_LCD_ILI9341_1);
  master.start();
}

void loop() {
  if (slave.isTouched() > 0) {
    Serial.println("Touched");
    delay(500);
  }
}

Please see EthercatDevice_DmpLCD_Generic 類別 for more QEC Stepper Drivers instructions and API usage.