Chain DualKey Button

#include "M5Unified.h"

#define pin_Key1 0
#define pin_Key2 17

m5::Button_Class Key1;
m5::Button_Class Key2;

void setup() {
  pinMode(pin_Key1, INPUT);
  pinMode(pin_Key2, INPUT);

  Serial.begin(115200);
}

void loop() {
  uint32_t ms = millis();
  Key1.setRawState(ms, !digitalRead(pin_Key1));
  Key2.setRawState(ms, !digitalRead(pin_Key2));

  if (Key1.wasPressed()) {
    Serial.println("Key1 was pressed");
  }
  if (Key1.wasReleased()) {
    Serial.println("Key1 was released");
  }
  if (Key1.wasSingleClicked()) {
    Serial.println("Key1 was single clicked");
  }
  if (Key1.wasDoubleClicked()) {
    Serial.println("Key1 was double clicked");
  }
  if (Key1.wasHold()) {
    Serial.println("Key1 was held");
  }
  if (Key1.wasReleaseFor(5000)) {  // ms
    Serial.println("Key1 was released after being held for 5000 ms");
  }

  if (Key2.wasPressed()) {
    Serial.println("Key2 was pressed");
  }
  if (Key2.wasReleased()) {
    Serial.println("Key2 was released");
  }
  if (Key2.wasSingleClicked()) {
    Serial.println("Key2 was single clicked");
  }
  if (Key2.wasDoubleClicked()) {
    Serial.println("Key2 was double clicked");
  }
  if (Key2.wasHold()) {
    Serial.println("Key2 was held");
  }
  if (Key2.wasReleaseFor(5000)) {  // ms
    Serial.println("Key2 was released after being held for 5000 ms");
  }

  delay(10);
}