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Feature #13603 » arduino_code_13603 (1).ino

Anonyme, 26/11/2021 14:19

 
#include <SoftwareSerial.h>

enum Switch {opened = 0, closed = 1};
enum Switch state;
int Vval; // value diffrence in voltage
unsigned int StartTime;
unsigned int CurrentTime;
unsigned int ElapsedTime;
unsigned char flaginit = 0;

SoftwareSerial hc06(10, 11);

int readport(uint8_t val1, uint8_t val2)
{
int returnVal = analogRead(val1) - analogRead(val2);
if (abs(returnVal) < 9)
return 0;
else
return returnVal;
}

void setup()
{
hc06.begin(9600);
//Serial.begin(9600);
Vval = readport(A1, A0);
//case where I start with an open circuit
if (!Vval)
state = opened;
else
state = closed;
}

void loop()
{
Vval = readport(A0, A1);
if (state == closed && !flaginit)
{
hc06.println("you must start with an open circuit");
delay(50);
exit(0);
}
flaginit = 1;

do //start counter when the circuit is closed for the first time
{
Vval = readport(A0, A1);
delay(7);
} while (!Vval);
StartTime = millis();

do //stop counter when the circuit reclosed
{
Vval = readport(A0, A1);
delay(7);
} while (Vval);
CurrentTime = millis();

//Print result to smartphone
ElapsedTime = CurrentTime - StartTime - 14;
hc06.println("Elapsed time is: ");

hc06.println(ElapsedTime); //Send message to smartphone
}
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