M5Core2: タッチパネルの使い方

プログラム

touch_panel01.ino

// ---------------------------------------------------------------
//	touch_panel01.ino
//
//						Feb/24/2025
// ---------------------------------------------------------------
#include <M5Core2.h>

#define	RADIUS	50
#define	HANTEI	60
bool button_a = false;
bool button_b = false;

int pos_before[] = {0,0};
int count_omit = 0;
int nn = 0;
// ---------------------------------------------------------------
void setup() {
	M5.begin();
  
	M5.Lcd.fillScreen(TFT_BLACK);
	M5.Lcd.fillCircle(60, 120, RADIUS, GREEN);
	M5.Lcd.fillCircle(260, 120, RADIUS, GREEN);
}

// ---------------------------------------------------------------
void touch_proc(int xx_in, int yy_in)
{
	int ip = sq(xx_in - 60) + sq(yy_in - 120);
	double lla = sqrt(ip);
	int iq = sq(xx_in - 260) + sq(yy_in - 120);
	double llb = sqrt(iq);
	Serial.printf("nn = %d\t",nn);
	Serial.printf("lla = %f\t",lla);
	Serial.printf("llb = %f\n",llb);

	if (lla <= HANTEI)
		{
		if(button_a)
			{
			M5.Lcd.fillCircle(60, 120, RADIUS, GREEN);
			}
		else
			{
			M5.Lcd.fillCircle(60, 120, RADIUS, RED);
			}
		button_a = !button_a;
		}
	else if (llb <= HANTEI)
		{
		if(button_b)
			{
			M5.Lcd.fillCircle(260, 120, RADIUS, GREEN);
			}
		else
			{
			M5.Lcd.fillCircle(260, 120, RADIUS, RED);
			}
		button_b = !button_b;
		}

	nn++;
}

// ---------------------------------------------------------------
void loop() {
  M5.update();  // タッチ状態を更新
  
  if (M5.Touch.ispressed()) {
    Point touchPoint = M5.Touch.getPressPoint();
  
	if ((pos_before[0]!= touchPoint.x) && (pos_before[1] != touchPoint.y) 
		&& (70 <=touchPoint.y) && (touchPoint.y <= 170))
		{

		touch_proc(touchPoint.x, touchPoint.y);

		pos_before[0] = touchPoint.x;
		pos_before[1] = touchPoint.y;

		count_omit = 10;
		}
	}
  
	delay(100);  // ループの遅延

	if (0 < count_omit)
		{
		count_omit--;
		}
	else
		{
		pos_before[0] = 0;
		pos_before[1] = 0;
		}
}

// ---------------------------------------------------------------

Arduino IDE 2.3.4

実行時の様子