Add example code for lab 2

Author: MykolaKovalyk

mc_labs/mc_lab_02/lab2-mko/lab2-mko.ino

@@ -0,0 +1,74 @@
+const unsigned char BUTTON_0_PIN = 49;
+const unsigned char BUTTON_1_PIN = 47;
+
+const unsigned char LED_PINS[] = { 62, 63, 64, 65, 66, 67, 68, 69 };
+const unsigned int DELAY = 800;
+
+void setup() {
+  for (int i = 0; i < 8; i++) {
+    pinMode(LED_PINS[i], OUTPUT);
+    digitalWrite(LED_PINS[i], LOW);
+  }
+
+  pinMode(BUTTON_0_PIN, INPUT);
+  digitalWrite(BUTTON_0_PIN, HIGH);
+
+  pinMode(BUTTON_1_PIN, INPUT);
+  digitalWrite(BUTTON_1_PIN, HIGH);
+
+  Serial.begin(9600);
+}
+
+
+unsigned char currentIteration = 0;
+unsigned char currentMode = 0;
+void bleep_sequential() {
+  digitalWrite(LED_PINS[currentIteration], HIGH);
+  delay(DELAY);
+  digitalWrite(LED_PINS[currentIteration], LOW);
+  currentIteration = (currentIteration + 1) % 8;
+}
+
+void bleep_two_converge() {
+  digitalWrite(LED_PINS[currentIteration], HIGH);
+  digitalWrite(LED_PINS[7 - currentIteration], HIGH);
+  delay(DELAY);
+  digitalWrite(LED_PINS[currentIteration], LOW);
+  digitalWrite(LED_PINS[7 - currentIteration], LOW);
+  currentIteration = (currentIteration + 1) % 4;
+}
+
+
+
+void loop() {
+  int inByte = -1;
+  if (Serial.available())
+    inByte = Serial.read();
+
+  if (currentMode == 0) {
+    if (inByte == 0xA1)
+      currentMode = 1;
+    else if (inByte == 0xB1)
+      currentMode = 2;
+  }
+
+  if (currentMode == 1)
+    bleep_sequential();
+  else if (currentMode == 2)
+    bleep_two_converge();
+
+  if (currentIteration == 0)
+    currentMode = 0;
+
+
+  if (digitalRead(BUTTON_0_PIN) == LOW)
+  {
+    Serial.write(0xA1);
+    delay(1000);
+  }
+  if (digitalRead(BUTTON_1_PIN) == LOW)
+  {
+    Serial.write(0xB1);
+    delay(1000);
+  }
+}