4n4

Dependencies:   HCSR04 TextLCD mbed

Revision:
0:808573894e45
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Oct 24 12:46:39 2016 +0000
@@ -0,0 +1,30 @@
+#include "mbed.h"
+#include "TextLCD.h"
+#include "HCSR04.h"
+
+TextLCD lcd(D12, D11, D5, D4, D3, D2, TextLCD::LCD16x2); // rs, e, d4-d7
+DigitalOut myled(LED1);
+
+int main()
+{
+    lcd.printf("Distance Calculator.");
+    wait(1);
+    lcd.cls();
+    lcd.locate(0,0);
+    HCSR04 sensor(D7, D8); //echo pin, trig pin
+    sensor.setRanges(1, 150);
+    lcd.printf("Min. = %g cm", sensor.getMinRange());
+    lcd.locate(0,1);
+    lcd.printf("Max. = %g cm",sensor.getMaxRange());
+    wait(2);
+    lcd.cls();
+    lcd.locate(0,0);
+    lcd.printf("Distance: ");
+    while(1) {
+        lcd.locate(0,1);
+        lcd.printf("%5.3f cm", sensor.getDistance_cm());
+        wait_ms(1000);
+        lcd.locate(0,1);
+        lcd.printf(" ");
+    }
+}
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