first commit

.directory

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+[Desktop Entry]
+Icon=folder-cyan

led_steps.ino

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+int ledPin1 = 2; //GREEN
+int ledPin2 = 3; //BLUE
+int ledPin3 = 4; //YELLOW
+int ledPin4 = 5; //RED
+int buttonPin = 13;
+int buttonState = HIGH;
+
+void setup() {
+  Serial.begin(9600);
+
+  pinMode(ledPin1, OUTPUT);
+  pinMode(ledPin2, OUTPUT);
+  pinMode(ledPin3, OUTPUT);
+  pinMode(ledPin4, OUTPUT);
+  pinMode(buttonPin, INPUT_PULLUP);
+
+}
+
+void loop() {
+
+buttonState = digitalRead(buttonPin);
+
+static int state = 1;
+
+
+if (buttonState == LOW) {
+  switch (state) {
+    case 1:
+      analogWrite(ledPin1, 150);
+      analogWrite(ledPin4, 0);
+      state = 2;
+      delay(200);
+    case 2:
+      analogWrite(ledPin2, 150);
+      analogWrite(ledPin1, 0);
+      state = 3;
+      delay(200);
+    case 3:
+      analogWrite(ledPin3, 150);
+      analogWrite(ledPin2, 0);
+      state = 4;
+      delay(200);
+    case 4:
+      analogWrite(ledPin4, 150);
+      analogWrite(ledPin3, 0);
+      state = 1;
+      delay(200);
+
+    default: break;
+  }
+}else {
+  analogWrite(ledPin1 , 0);
+  analogWrite(ledPin2 , 0);
+  analogWrite(ledPin3 , 0);
+  analogWrite(ledPin4 , 0);
+
+}
+
+
+}