dorian diana / Mbed 2 deprecated capt

ER2

Dependencies:   mbed

main.cpp

Committer:
dorian06
Date:
2021-06-02
Revision:
0:a6e925f144a4

File content as of revision 0:a6e925f144a4:

#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();
}