dorian diana
/
capt
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Revision 0:a6e925f144a4, committed 2021-06-02
- Comitter:
- dorian06
- Date:
- Wed Jun 02 07:24:41 2021 +0000
- Commit message:
- capt
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Jun 02 07:24:41 2021 +0000
@@ -0,0 +1,40 @@
+#include "mbed.h"
+AnalogOut trig(p16);
+InterruptIn Echo(p15);
+Timer T1;
+Ticker T2;
+void Trig(void);
+void FM(void);
+void FD(void);
+float temp;
+int main()
+{
+ T2.attach(&Trig,1);
+ float dis;
+ Echo.rise(&FM);
+ Echo.fall(&FD);
+ while(1) {
+ dis =17/(100*temp);
+ printf("cm=%g\n\r",dis);
+
+
+ }
+}
+
+void Trig(void)
+{
+ trig=1;
+ wait_us(50);
+ trig=0;
+}
+void FM(void)
+{
+ T1.stop();
+ T1.reset();
+ T1.start();
+}
+void FD(void)
+{
+ T1.stop();
+ temp=T1.read();
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Jun 02 07:24:41 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400 \ No newline at end of file