File content as of revision 1:00fe5bf692b4:

#include "mbed.h"

Serial ttl(PC_12,PD_2);
AnalogIn flowIn(PA_1);

float flowVal1;
float flowVal2;
float Pressure;

float finalflow;
float flow(){
   flowVal1=3.3*flowIn; //Logic level 3.3
          flowVal2 = 1.5*flowVal1; //5v
          Pressure =(125*flowVal2)-62.5;
          //finalflow=(0.3425*sqrt(Pressure))-0.198; //flow in litter per min
          //finalflow= (-6.12e-5)*(Pressure)*(Pressure) + (2.98e-2)*Pressure - 8.83e-2;
          return Pressure;
}

int main(){       
ttl.baud(115200);

    ttl.printf("$");//enter command mode only for rn
    wait(0.1);
    ttl.printf("$$");//enter command mode
    wait(0.5);
    ttl.printf("SN,Flow Calibration\r");//set new name
    wait(0.5);
    ttl.printf("SS,C0\r");//set transparent uart
    wait(0.5);
    ttl.printf("---\r");//enter data mode
    wait(0.5);
    
    while(1){
        ttl.printf("%f\n", flow());    
        wait(0.1); 
        } 

}