digitalread.ino

void setup() {
  pinMode(4, INPUT);
  pinMode(13, INPUT);
  pinMode(21, INPUT);
  pinMode(22, INPUT);
  pinMode(23, INPUT);
  pinMode(25, INPUT);
}
void loop() {
  Serial.print(digitalRead(4));
  Serial.print(String(","));
  Serial.print(digitalRead(13));
  Serial.print(String(","));
  Serial.print(digitalRead(21));
  Serial.print(String(","));
  Serial.print(digitalRead(22));
  Serial.print(String(","));
  Serial.print(digitalRead(23));
  Serial.print(String(","));
  Serial.println(digitalRead(25));
  delay(100);
}