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Dependencies:   mbed

main.cpp@1:00fe5bf692b4, 2020-06-06 (annotated)

Committer:
christodoulos
Date:
Sat Jun 06 17:00:06 2020 +0000
Revision:
1:00fe5bf692b4
Parent:
0:d034cdad5b6d
Child:
2:322470aeeae9
Flow calibration

Who changed what in which revision?

UserRevisionLine numberNew contents of line
christodoulos 0:d034cdad5b6d 1 #include "mbed.h"
christodoulos 0:d034cdad5b6d 2
christodoulos 1:00fe5bf692b4 3 Serial ttl(PC_12,PD_2);
christodoulos 1:00fe5bf692b4 4 AnalogIn flowIn(PA_1);
christodoulos 0:d034cdad5b6d 5
christodoulos 0:d034cdad5b6d 6 float flowVal1;
christodoulos 0:d034cdad5b6d 7 float flowVal2;
christodoulos 0:d034cdad5b6d 8 float Pressure;
christodoulos 1:00fe5bf692b4 9
christodoulos 0:d034cdad5b6d 10 float finalflow;
christodoulos 1:00fe5bf692b4 11 float flow(){
christodoulos 0:d034cdad5b6d 12 flowVal1=3.3*flowIn; //Logic level 3.3
christodoulos 0:d034cdad5b6d 13 flowVal2 = 1.5*flowVal1; //5v
christodoulos 0:d034cdad5b6d 14 Pressure =(125*flowVal2)-62.5;
christodoulos 1:00fe5bf692b4 15 //finalflow=(0.3425*sqrt(Pressure))-0.198; //flow in litter per min
christodoulos 1:00fe5bf692b4 16 //finalflow= (-6.12e-5)*(Pressure)*(Pressure) + (2.98e-2)*Pressure - 8.83e-2;
christodoulos 1:00fe5bf692b4 17 return Pressure;
christodoulos 0:d034cdad5b6d 18 }
christodoulos 0:d034cdad5b6d 19
christodoulos 0:d034cdad5b6d 20 int main(){
christodoulos 1:00fe5bf692b4 21 ttl.baud(115200);
christodoulos 1:00fe5bf692b4 22
christodoulos 1:00fe5bf692b4 23 ttl.printf("$");//enter command mode only for rn
christodoulos 1:00fe5bf692b4 24 wait(0.1);
christodoulos 1:00fe5bf692b4 25 ttl.printf("$$");//enter command mode
christodoulos 1:00fe5bf692b4 26 wait(0.5);
christodoulos 1:00fe5bf692b4 27 ttl.printf("SN,Flow Calibration\r");//set new name
christodoulos 1:00fe5bf692b4 28 wait(0.5);
christodoulos 1:00fe5bf692b4 29 ttl.printf("SS,C0\r");//set transparent uart
christodoulos 1:00fe5bf692b4 30 wait(0.5);
christodoulos 1:00fe5bf692b4 31 ttl.printf("---\r");//enter data mode
christodoulos 1:00fe5bf692b4 32 wait(0.5);
christodoulos 1:00fe5bf692b4 33
christodoulos 0:d034cdad5b6d 34 while(1){
christodoulos 1:00fe5bf692b4 35 ttl.printf("%f\n", flow());
christodoulos 1:00fe5bf692b4 36 wait(0.1);
christodoulos 0:d034cdad5b6d 37 }
christodoulos 0:d034cdad5b6d 38
christodoulos 0:d034cdad5b6d 39 }