/*
* https://www.hackster.io/crazycoder1999
*/
// defines pins numbers
const int trigPin = 9;
const int echoPin = 8;
const int DRINK_PIN = 6;
const int NO_BOTTLE_PIN = 7;
int myStatus = 1; //1 = OK, 2 = DRINK, 3 = NO BOTTLE
// defines variables
long duration;
int distance;
long secondsPassed = 0;
void setup() {
pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
pinMode(echoPin, INPUT); // Sets the echoPin as an Input
pinMode(DRINK_PIN, OUTPUT);
pinMode(NO_BOTTLE_PIN, OUTPUT);
Serial.begin(9600); // Starts the serial communication
}
bool isDrinking(){
return myStatus == 3;
}
bool mustDrink(){
return myStatus == 2;
}
bool ok() {
return myStatus == 1;
}
void loop() {
delay(1000);
if ( mustDrink() ) { //DRINK
digitalWrite(DRINK_PIN, HIGH);
digitalWrite(NO_BOTTLE_PIN, LOW);
} else if( isDrinking() ) {
digitalWrite(NO_BOTTLE_PIN, HIGH);
digitalWrite(DRINK_PIN, LOW);
} else {
digitalWrite(NO_BOTTLE_PIN, LOW);
digitalWrite(DRINK_PIN, LOW);
}
// Clears the trigPin
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
// Sets the trigPin on HIGH state for 10 micro seconds
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
// Reads the echoPin, returns the sound wave travel time in microseconds
duration = pulseIn(echoPin, HIGH);
// Calculating the distance
distance = duration*0.034/2;
if ( distance < 6 ) { //BOTTLE IS IN PLACE
//
if ( isDrinking() ) { //he finished
myStatus = 1;
secondsPassed = 0;
} else {
secondsPassed++;
if ( secondsPassed > 3600 ) {
myStatus = 2;
}
}
} else { //BOTTLE IS NOT IN PLACE
myStatus = 3;
}
// Prints the distance on the Serial Monitor
Serial.print("myStatus ");
Serial.print(myStatus);
Serial.print(" Distance: ");
Serial.println(distance);
}
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