Hand Sanitizer lab- I just found a regular oval shaped bottle of hand sanitizer and designed an insert that will hold the bottle using tinker cad. The arduino board would fit into the slot on the right side and the bread board gets mounted on the left. the servo motor is attached to the top and would need an extended arm(i could not find more attachments in the 3d drawing options. I also couldn't find an ultrasonic sensor so I used that white switch as a placeholder.
Embedded Files
#include<Servo.h>
int trig=8;
int echo=9;
int dt=10;
Servo servo;//int distance,duration;
void setup() {
// put your setup code here, to run once:
pinMode(trig,OUTPUT);
pinMode(echo,INPUT);
Serial.begin(9600);
servo.attach(3);
}void loop() {
// put your main code here, to run repeatedly:if (calc_dis()<10)
{
for (int i=0;i<=180;i++)
{
servo.write(i);
delay(1);
}
delay(100);
for (int i=180;i>=0;i–)
{
servo.write(i);
delay(1);
}
delay(100);
}
}//This code is written to calculate the DISTANCE using ULTRASONIC SENSORint calc_dis()
{
int duration,distance;
digitalWrite(trig,HIGH);
delay(dt);
digitalWrite(trig,LOW);
duration=pulseIn(echo,HIGH);
distance = (duration/2) / 29.1;
Serial.println((String) “Duration: ” + duration + ” Distance: ” + distance);
return distance;
}
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