Background

I am going to solve a problem in my life ,I need to automate irrigation system in our farm,thats why iam going to make this "Timer Based Valve".

Objective

I want a Valve that should be automatically closed after specific time,User can set time using a probe.

Components Required

• 3/4" Ball Valve
• Servo Motor with 15Kg Torque
• 3D Printed Gears and Mechanical Structure
• Potention Meter 10K
• Fabduino
• Battery

How I Made

• Designed Mechanical Structure in antimony

Antimony File .Sb

.stl file

• Fixed Valve in a 3D printed Structure

• Mounted Servo on Main Structure

• Connect Pot and Servo to Fabduino

• Program Fabduino

/* Program for Timer Based Valve
by Muhammed Jaseel P http://jaseel1.github.io
Nov 20 2016
*/

#include Servo.h
Servo myservo;//servo object to control servo
int potPin = A0; // select the input pin for the potentiometer

int val = 0; // variable to store the value coming from the sensor
int timerdelay;

void setup() {
myservo.attach(9);//Servo Connected to Pin 9
}
void loop() {
val = analogRead(potPin);
if(val<100)
{
timerdelay=5*1000*60://5 Minutes Delay
}
else if(val>=100 && val<=200)
{
timerdelay=10*1000*60;//10 Minutes delay
}
else if(val>200 && val<=300)
{
timerdelay=15*1000*60;//15 minutes Delay
}
else if(val>300 && val<=400)
{
timerdelay=20*1000*60;//20 Minutes Delay
}
else
{
timerdelay = 0;
}
myservo.write(180);//Open the Valve
delay(timerdelay);//Wait for specified delay
myservo.write(0);//Close the Valve
}

Arduino Program Download

Output