const int R1 = 26;
const int G1 = 27;
const int b1 = 33;


void setup() {
  Serial.begin(9600);
  pinMode(R1, OUTPUT);
  pinMode(G1, OUTPUT);
  pinMode(b1, OUTPUT);
}
void loop() {
  digitalWrite(R1, HIGH);
  digitalWrite(G1, LOW);
  digitalWrite(b1, LOW);
  delay(1000);
  digitalWrite(R1, LOW);
  digitalWrite(G1, HIGH);
  digitalWrite(b1, LOW);
  delay(1000);
  digitalWrite(R1, LOW);
  digitalWrite(G1, LOW);
  digitalWrite(b1, HIGH);
  delay(1000);
}