Paper Button 滚轮按键

#include <M5Unified.h>
#include <M5GFX.h>

void setup() {
  M5.begin();
  M5.Display.setRotation(0);
  M5.Display.setFont(&fonts::FreeMonoBold24pt7b);
  M5.Display.setEpdMode(epd_fast);  // epd_quality, epd_text, epd_fast, epd_fastest
  Serial.begin(115200);

  M5.Display.clear();
  M5.Display.setCursor(20, 100);
  M5.Display.print("Rotary Button Test");
  Serial.println("Rotary Button Test");

  M5.Display.setCursor(40, 300);
  M5.Display.print("____ was pressed");
}

void loop() {
  M5.update();

  if (M5.BtnA.wasPressed()) {
    M5.Display.setCursor(40, 300);
    M5.Display.print("BtnA was pressed");
    Serial.println("BtnA was pressed");
  }
  if (M5.BtnB.wasPressed()) {
    M5.Display.setCursor(40, 300);
    M5.Display.print("BtnB was pressed");
    Serial.println("BtnB was pressed");
  }
  if (M5.BtnC.wasPressed()) {
    M5.Display.setCursor(40, 300);
    M5.Display.print("BtnC was pressed");
    Serial.println("BtnC was pressed");
  }
}