Arduino Nesso N1 Touch

#include <M5Unified.h>

void setup(void) {
  auto cfg = M5.config();
  M5.begin(cfg);

  M5.Display.setTextColor(GREEN);
  M5.Display.setTextDatum(top_center);
  M5.Display.setFont(&fonts::Orbitron_Light_24);
  M5.Display.setTextSize(1);
  M5.Display.setRotation(1);
  M5.Display.drawString("Touch Test", M5.Display.width() / 2,
                        40);
}

int prev_x = -1;
int prev_y = -1;

static m5::touch_state_t prev_state;

void loop(void) {
  M5.update();
  auto t = M5.Touch.getDetail();

  if (prev_state != t.state) {
    prev_state = t.state;
    static constexpr const char* state_name[16] = {
      "none", "touch", "touch_end", "touch_begin",
      "___", "hold", "hold_end", "hold_begin",
      "___", "flick", "flick_end", "flick_begin",
      "___", "drag", "drag_end", "drag_begin"
    };
    M5_LOGI("%s", state_name[t.state]);
  }

  if (prev_x != t.x || prev_y != t.y) {
    M5.Display.fillRect(0, 0, M5.Display.width(), 35, BLACK);
    M5.Display.drawString(
      "X:" + String(t.x) + " / " + "Y:" + String(t.y),
      M5.Display.width() / 2, 0);
    prev_x = t.x;
    prev_y = t.y;
    M5.Display.fillCircle(prev_x, prev_y, 4, GREEN);
  }


  if (t.wasClicked()) {
    M5.Display.fillRect(0, 35, M5.Display.width(), 100, BLACK);
  }
}