Diff: main.cpp

Revision:

0:e7c4d23dbc05

diff -r 000000000000 -r e7c4d23dbc05 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Sep 28 03:44:12 2017 +0000
@@ -0,0 +1,36 @@
+#include "mbed.h"
+#include "TextLCD.h"
+#include "HCSR04.h"
+
+PinName pin_ECHO = PB_7;
+PinName pin_TRIG = PB_10;
+
+HCSR04 Ultrasonic(pin_ECHO, pin_TRIG);
+
+// rs, rw, e, d0-d3
+TextLCD lcd(PB_12, PB_13, PB_14, PB_15, PA_9, PA_10, PA_11); 
+
+float Ultrasonic_cm(void);
+
+int main() {
+    uint16_t dist = 0;
+    
+    lcd.printf("   Ultrasonic\n");
+    lcd.printf(" Dist :    [cm]"); 
+    
+    while(1) {
+        dist = Ultrasonic_cm();
+        lcd.locate(8, 1);
+        lcd.printf("%3d", dist);
+        wait(0.5);
+    }
+}
+
+float Ultrasonic_cm(void)
+{
+    Ultrasonic.startMeasurement();
+    
+    while(!Ultrasonic.isNewDataReady());
+    
+    return Ultrasonic.getDistance_cm();
+}
\ No newline at end of file