Remote pet feeder


How it works

Do you wanna feed your pets from outdoor?
This is a feeder that can be controlled from the Web.


  1. obniz – 1
  2. battery or usb adaptor & cable – 1
  3. Screw and pipes
  4. Servo motor (unlimited rotation) – 1
  5. Pet food – as many as possible

Step 1

Cut pipes and prepare the screw.
This is a sample stl file. you can download and print this by 3D Printer.
Then, Build these things and connect screw to a motor.
And put them into a box.

Step 2

Connect Servo motor to an obniz.

  1. io0: GND,
  2. io1: VCC,
  3. io2: signal

Then power up your obniz.

Step 3

Write code below.
Put foods to it and Try onece.
foods will be outcome.


<!-- HTML Example -->
<!DOCTYPE html>
  <script src="" crossorigin="anonymous"></script>
  <script src=""></script>
  <div id="obniz-debug"></div>
  <div class="text-center">
    <h1> Pet Feeder </h1>
  <button id="meal">Feeding</button>
  <div id="dispMeal"></div>
function getTime(){
  var dateTime=new Date();
  var hour = dateTime.getHours();
  var minute = dateTime.getMinutes();
  return hour + ":" + minute;
/* This will be over written on 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(){
    lastTimeMeal = getTime();
    $("#dispMeal").text("Number of feeding : "+numberOfMeal+", The last time : "+lastTimeMeal)
    await obniz.wait(10000);

Run Now

The html will be opened to run a program.