// Define pin connections
const int presenceSensorPin = A0;
const int vacuumPin = 2;
const int blowerPin = 3;
// Define variables to control timing
unsigned long presenceStartTime = 0;
const unsigned long vacuumDuration = 5000; // 30 seconds in milliseconds
const int distanceThreshold = 40; // Set distance threshold for human presence in centimeters
if (presence) { // Human presence detected
digitalWrite(blowerPin, HIGH); // Turn off the blower
if(presenceUnder30){
digitalWrite(vacuumPin, LOW); // Turn on the vacuum
}else{
digitalWrite(vacuumPin, HIGH); // Turn on the vacuum
}
} else { // No human presence detected
digitalWrite(vacuumPin, HIGH); // Turn off the vacuum
digitalWrite(blowerPin, LOW); // Turn on the blower
}
Serial.println(presence);
}
// Function to convert the analog sensor value to distance in centimeters
int getDistance(int sensorValue) {
// The following equation is specific to the GP2Y0A41SK0F sensor
float distance = 2076.0 / (sensorValue - 11.0);
return (int)distance;
delay(100);
}
if(presence) {
// Store the start time of presence
if (presenceStartTime == 0) {
presenceStartTime = millis();
}
// Check if the vacuum has been on for 30 seconds
if (millis() - presenceStartTime >= vacuumDuration) {
return false;
}else{
return true;
}
}else{
// Reset presence start time
presenceStartTime = 0;
}
}
// Function to check if a human is present based on the IR sensor reading
bool isHumanPresent() {
int presenceSensorValue = analogRead(presenceSensorPin);
int distance = getDistance(presenceSensorValue);
include
// Define pin connections const int presenceSensorPin = A0; const int vacuumPin = 2; const int blowerPin = 3;
// Define variables to control timing unsigned long presenceStartTime = 0; const unsigned long vacuumDuration = 5000; // 30 seconds in milliseconds const int distanceThreshold = 40; // Set distance threshold for human presence in centimeters
void setup() { // Initialize pins pinMode(presenceSensorPin, INPUT); pinMode(vacuumPin, OUTPUT); pinMode(blowerPin, OUTPUT);
// Make sure vacuum and blower are off at startup digitalWrite(vacuumPin, HIGH); digitalWrite(blowerPin, HIGH); }
void loop() { // Read presence sensor value bool presence = isHumanPresent(); bool presenceUnder30=isPresenceUnder30();
if (presence) { // Human presence detected digitalWrite(blowerPin, HIGH); // Turn off the blower
if(presenceUnder30){ digitalWrite(vacuumPin, LOW); // Turn on the vacuum }else{ digitalWrite(vacuumPin, HIGH); // Turn on the vacuum } } else { // No human presence detected digitalWrite(vacuumPin, HIGH); // Turn off the vacuum digitalWrite(blowerPin, LOW); // Turn on the blower }
Serial.println(presence); } // Function to convert the analog sensor value to distance in centimeters int getDistance(int sensorValue) { // The following equation is specific to the GP2Y0A41SK0F sensor float distance = 2076.0 / (sensorValue - 11.0); return (int)distance; delay(100); }
bool isPresenceUnder30() { bool presence = isHumanPresent();
if(presence) { // Store the start time of presence if (presenceStartTime == 0) { presenceStartTime = millis(); } // Check if the vacuum has been on for 30 seconds if (millis() - presenceStartTime >= vacuumDuration) { return false; }else{ return true; } }else{ // Reset presence start time presenceStartTime = 0; } } // Function to check if a human is present based on the IR sensor reading bool isHumanPresent() { int presenceSensorValue = analogRead(presenceSensorPin); int distance = getDistance(presenceSensorValue);
if (distance <= distanceThreshold) { return true; } else { return false; } }