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  • Author Author: sa112
  • Date Created: Date Created
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Feeding cat remotely using smartphone

sa112

Do you wanna feed your pets from outdoor? I have made a feeding machine which can be controlled on the browser using smartphone.

 

 

What you need to prepare

  • Obniz
  • Battery or USB adaptor & cable
  • Screw and pipe
  • Servo motor ( unlimited rotation)
  • Pet food - as much as possible

 

Step 1

Cut pipes and prepare the screw. I made a screw by using 3D printer. Then, connect screw to a motor. and  put them into a box.

 

Step 2

Connect servo motor to obniz.

io0: GND,

io1: VCC,

io2: signal

 

Then power up your obniz.

 

image

 

Step 3

Write codes below and put food into the bottle. Food will come out from the pipe.

image

 

Program

 

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">

  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
  <script  src="https://code.jquery.com/jquery-3.2.1.min.js" integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4="  crossorigin="anonymous"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js" integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh" crossorigin="anonymous"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>

  <script src="https://unpkg.com/obniz@0.1.34/obniz.js"></script>
</head>

<body>
<div id="obniz-debug"></div>
<br>
<div>
  <h1> Pet Feeder </h1>
</div>

<button id="meal">Feeding</button>
<div id="dispMeal"></div>

<script>

function getTime(){
  var dateTime=new Date();
  var hour = dateTime.getHours();
  var minute = dateTime.getMinutes();
  return hour + ":" + minute;
}

/* This will be over written on obniz.io webapp page */
var obniz = new Obniz("OBNIZ_ID_HERE");

obniz.onconnect = async function () {
  var numberOfMeal = 0;
  var lastTimeMeal;
  $("#dispMeal").text("Number of feeding : "+numberOfMeal)
  var servo = obniz.wired("ServoMotor", {gnd:0, vcc:1, signal:2});

  $("#meal").click(async function(){
    numberOfMeal++
    lastTimeMeal = getTime();
    $("#dispMeal").text("Number of feeding : "+numberOfMeal+", The last time : "+lastTimeMeal)
    servo.angle(0.0);
    await obniz.wait(10000);
    servo.angle(6.9);
  })
}
    
</script>
</body>
</html>

Parents

  • I really like how you built that dispenser! nice work image

     

    That Obniz looks like a nice dev board and platform too.

    I see it uses the ESP32 chip too.

     

    A few years ago I built a cat treat (or food) self-serve dispenser, and I tried to train Charlie Kat to press the button, but ultimately he trained me to press the button for him.

    Cat Treat Dispenser

    The second article linked from this article shows it in use - him shaking a paw is really his way of telling me to give him a treat image

     

    I had also wanted to use the pipe+screw setup like you have it, but not having a 3D printer made that too tricky at the time.

     

    I've been meaning to IoT this feeder, but it's still just sitting in the basement. I may have to dust it off again now that you have inspired me!

     

    Cheers,

    -Nico

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