Added Makefile to be able to use arduino-mk and use vim.

firmware/v01/v01.ino

@@ -34,6 +34,17 @@ Adafruit_SSD1306 display(OLED_RESET);
 #define rDOWN digitalRead(DOWN)     // Read button DOWN state
 #define rCANCEL digitalRead(CANCEL) // Read button CANCEL state
 
+
+
+void zero();
+void one();
+void two();
+void three();
+void four();
+void read_serial();
+void write_serial();
+
+
 //volatile byte state = LOW;
 
 // Variables creation