Milan Stefko
This program demonstrates how to use ultrasonic sensor and how to display measured distance on both 16x2 LCD and seven segment display.
Dependencies: HCSR04 SevenSegmentDisplay TextLCD mbed
Revision 0:153f3254e133, committed 2014-08-22
- Comitter:
- triple
- Date:
- Fri Aug 22 19:24:38 2014 +0000
- Commit message:
- FIN
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/HCSR04.lib Fri Aug 22 19:24:38 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/prabhuvd/code/HCSR04/#71da0dbf4400
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SevenSegmentDisplay.lib Fri Aug 22 19:24:38 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/jf1452/code/SevenSegmentDisplay/#cb7339a2e196
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TextLCD.lib Fri Aug 22 19:24:38 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/simon/code/TextLCD/#308d188a2d3a
--- /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);
+ }
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Aug 22 19:24:38 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/9327015d4013 \ No newline at end of file