Arnov Sharma
Published © CC BY-NC-SA

Yet Another Solenoid Valve Based SANITIZER DISPENSER

3D Printed and easy to Replicate "Fluid Dispenser for alcohol-based sanitizer".

BeginnerFull instructions provided10 hours750

Things used in this project

Story

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Custom parts and enclosures

container lid

container

lid of lid

wall mount bracket

Schematics

SCH for PCB

Code

code for ultrasonic sensor

C/C++
int trigPin = 11; 
int echoPin = 10; 

int SOL = 13; //solenoid

void setup()
{  
pinMode(trigPin, OUTPUT); //Sensor
pinMode(echoPin, INPUT); //Sensor  
pinMode(SOL, OUTPUT);
Serial.begin(9600);
} 
void loop(){
  

long duration, distance;
 digitalWrite(trigPin, LOW);
 delayMicroseconds(2);
 digitalWrite(trigPin, HIGH);
 delayMicroseconds(5);
 digitalWrite(trigPin, LOW);
 duration = pulseIn(echoPin, HIGH);
 distance = (duration/2) / 29.1;
 Serial.print ("cm ");
 Serial.print (distance);



if (distance < 10)
{
  digitalWrite(SOL,HIGH);
}
else
  {
    //Serial.println("CLEAR");
    digitalWrite(SOL,LOW);

      }

  delay(200);
}

code for Proximity sensor

C/C++
int SOL = 0; 
int SENSOR = 1;

int isObstacle = 0;  

void setup() {
  pinMode(SOL, OUTPUT);
  pinMode(SENSOR, INPUT);

  //Serial.begin(9600);
  
}

void loop() {
  isObstacle = digitalRead(SENSOR);
  if (isObstacle == LOW)
  {
    //Serial.println("SOMETHING IS PASSING");
    digitalWrite(SOL,HIGH);

  }
  else
  {
    //Serial.println("CLEAR");
    digitalWrite(SOL,LOW);

      }

  delay(200);
  

}

Credits

Arnov Sharma

Arnov Sharma

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