Arduino 買ったのでとりあえずリレーかちかちした

とりあえず1815でokみたい

ベースの前に電力調整用抵抗と
リレーの横にダイオード入れた方がいいかも
入れなくても動いたからいいや おれソフト屋さん。

4つのせた

配線だらけ...

/*
  Blink
  Turns on an LED on for one second, then off for one second, repeatedly.
 
  This example code is in the public domain.
 */
 
// Pin 13 has an LED connected on most Arduino boards.
// give it a name:
int led = 13;

// the setup routine runs once when you press reset:
void setup() {                
  // initialize the digital pin as an output.
  pinMode(led, OUTPUT);    
}

// the loop routine runs over and over again forever:
void loop() {
  digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);               // wait for a second
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);               // wait for a second
}

なぜかしらんがLED光らない。

void setup() {                 
}

int i;
void loop() {
  for(i=9; i<14; i++)  analogWrite(i,255);
  delay(1000);
  for(i=9; i<14; i++)  analogWrite(i,0);
  delay(1000);
}

こうすると光った...