Diff: main.cpp

Revision:

2:ab1c9250d9fb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu May 05 08:46:32 2016 +0000
@@ -0,0 +1,74 @@
+#include "main.h"
+
+int main()
+{
+    init_K64F();//the k64f initialization
+    button.fall(&green);//for interruptIn
+    button.mode(PullNone);//for interruptIn
+    lcd.init();//the lcd initialization
+    wait(1.0);
+    lcd.printString("Distance",18,1);//Display the Distance
+    lcd.printString("Detector",18,3);//Display the Detector
+    wait(1.0);
+    lcd.clear();//clear the display
+    lcd.printString("Kai yuan!",18,2);//Display the name Kai yuan
+    lcd.printString("200967075",18,4);//Display the 200967075
+    wait(2.0);
+    lcd.clear();//clear the display
+    button.mode(PullDown);//for interruptIn
+
+    while(1) {
+        if(yesno == true) {
+            char buffer[14];// each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
+            buzzer.period(0.001);  // try 1 kKz
+            buzzer = 0.5;  // turn on (square wave)
+            wait(1.0);
+            lcd.clear();//clear the display
+            int distance=sensor.getDistanceCm();//get distance
+            int length = sprintf(buffer,"D = %d cm",distance);
+            if (length <= 14)  {// if string will fit on display
+                lcd.printString(buffer,0,1);
+            }
+            lcd.drawLine(0,24,0,48,1);//display the line
+            lcd.drawRect(distance/5,31,10,5,1);//display the rectangle
+            lcd.drawCircle(distance/5+3,37,1,1);//display the circle
+            lcd.drawCircle(distance/5+7,37,1,1);//display the circle
+            lcd.refresh();
+            ticker.attach(&green1,0.1);//for led flashing
+
+        }
+
+        else {
+            lcd.clear();
+            lcd.printString("Are you ready?",0,2);
+            buzzer = 0.0;  // turn off (0% duty cycle)
+            ticker.detach();
+            green_led = green_led;//turn off the led
+        }
+        r_led = 1;
+        wait(0.5);
+    }
+}
+
+void init_K64F()
+{
+    // on-board LEDs are active-low, so set pin high to turn them off.
+    r_led = 1;
+    g_led = 1;
+    b_led = 1;
+
+    // since the on-board switches have external pull-ups, we should disable the internal pull-down
+    // resistors that are enabled by default using InterruptIn
+    button.mode(PullNone);
+    button.mode(PullNone);
+
+}
+
+void green()
+{
+    yesno=!yesno;//true or false
+}
+void green1()
+{
+    green_led =! green_led;//make led light
+}