first commit

src/main.cpp

@@ -0,0 +1,79 @@
+#include <Arduino.h>
+
+#define LED1   PB14
+#define LED2   PB15
+#define LED3   PA8
+#define BUTTON PA0
+
+#define BUTTONDELAY   500
+
+
+uint8_t patternIndex = 0;
+unsigned long buttontimer = 0;
+bool buttonFlag = false;
+bool patternFlag = false;
+
+
+uint8_t ledpattern[5][3] = {
+  {1,0,0},
+  {0,0,1},
+  {0,1,0},
+  {0,1,0},
+  {0,0,1}
+};
+
+
+void setup() 
+{
+  pinMode(LED1, OUTPUT);
+  pinMode(LED2, OUTPUT);
+  pinMode(LED3, OUTPUT);
+  pinMode(BUTTON, INPUT_PULLUP);
+}
+
+void loop() 
+{
+  unsigned long currentMillis = millis();
+  //debounce button
+  if(!digitalRead(BUTTON))
+  {
+    if(!buttonFlag)
+    {
+      //button not detected jet, check timer
+      if(currentMillis - buttontimer >= BUTTONDELAY)
+      {
+        buttonFlag = true;
+      }
+    }
+  }
+  else
+  {
+    //button is not pressed, keep updating the timer
+    buttonFlag = false;
+    patternFlag = false;
+    buttontimer = millis();
+  }
+  
+  if(buttonFlag)
+  {
+    if(!patternFlag)
+    {
+      patternIndex++;
+      if(patternIndex > 5)
+      {
+        patternIndex = 0;
+      }
+      patternFlag = true;
+    }
+    //write pattern to the LEDs
+    digitalWrite(LED1,!ledpattern[patternIndex][0]);
+    digitalWrite(LED2,!ledpattern[patternIndex][1]);
+    digitalWrite(LED3,!ledpattern[patternIndex][2]);
+  }
+  else
+  {
+    digitalWrite(LED1,1);
+    digitalWrite(LED2,1);
+    digitalWrite(LED3,1);
+  }
+}