Diff: main.cpp

Revision:

0:153f3254e133

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Aug 22 19:24:38 2014 +0000
@@ -0,0 +1,37 @@
+/*******************************************************************************
+* This program demonstrates how to use ultrasonic sensor HCSR04 and  how       *
+* to display measured distance on both 16x2 LCD and seven segment display      *                                                                           *
+*******************************************************************************/
+#include "mbed.h"
+#include "hcsr04.h"
+#include "TextLCD.h"
+#include "SevenSegmentDisplay.h"
+
+// Options to instantiate SevenSegmentDisplay are...
+// FADE: causes the number changes to fade in smoothly
+// INSTANT: causes the an instant number change
+// + FLASH: causes the display to flash
+SevenSegmentDisplay segmentled( FADE );
+// p1_27, p1_26
+HCSR04  usensor(p9,p10);// trigger, echo
+// p0_9, p0_8, p1_29, p1_22, p1_21, p1_20
+TextLCD lcd(p11, p12, p15, p16, p17, p18, TextLCD::LCD16x2); // rs, e, d4-d7
+
+unsigned int dist;
+int main()
+{       
+    while(1) {
+        usensor.start();
+        wait_ms(500); 
+        dist=usensor.get_dist_cm();
+        lcd.cls();
+        lcd.locate(0,0);
+        lcd.printf("cm:%ld",dist );
+        if(dist<100){
+            segmentled.DisplayInt(dist);
+        }
+        else {
+            segmentled.DisplayInt(99);
+        }
+    }
+}