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Feeding Cat Remotely Using Smartphone

Made by obniz.io / 3D Printing / Animals / Food & Drinks / Home Automation / Robotics

About the project

Do you wanna feed your pet when you are not at home? I have made a feeding machine that can be controlled on a browser using your smartphone.

Project info

Difficulty: Easy

Platforms: Adafruit, Android, Apple, Arduino, Raspberry Pi

Estimated time: 4 hours

License: GNU General Public License, version 3 or later (GPL3+)

Items used in this project

Hardware components

	LiPo Battery Manager Battery Manager	x 1
	Tiny OTG Adapter - USB Micro to USB	x 1
	DC Motor in Micro Servo Body	x 1
	ITO Coated PET Plastic as much as possible	x 1
	Pipe Probe ntc hvac temp probe	x 1
	obniz https://obniz.io/	x 1

Software apps and online services

	Android
	iPhone

Story

Do you wanna feed your pet when you are not at home? I have made a feeding machine that can be controlled on a browser using your smartphone with obniz.

Step 1

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

Step 2

Connect the servo motor to obniz.

io0: GND,

io1: VCC,

io2: signal

Then power up your obniz.

Step 3

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

Schematics, diagrams and documents

Obniz and servo motor

CAD, enclosures and custom parts

Screw stl file

Go to download

Code

Untitled file

<!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 class="text-center">
  <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>

Credits

obniz.io

Obniz is cloud-connected IoT development board

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Feeding Cat Remotely Using Smartphone

About the project

Project info