week14

旋轉燈漸層發亮

arduino:

void setup() {
  // put your setup code here, to run once:
  for(int i=2;i<=13;i++){
    pinMode(i,OUTPUT);
  }
  Serial.begin(9600);
 
}

void loop() {
  // put your main code here, to run repeatedly:
  int now=analogRead(A0);
  int level=now/(1024/13);
  for(int i=2;i<=13;i++){
    if(i<level)digitalWrite(i,HIGH);
    else digitalWrite(i,LOW);
  }
  Serial.write(level);
  delay(20);
}

會跟著uno板子上的燈對應

跑出亮的多少