Published May 14, 2020 © GPL3+

Self-service cat feeder

You can learn to use modern electronics and get your own food :-)?

BeginnerFull instructions provided13,425

Things used in this project

Hardware components

Arduino Nano R3

Story

The feeder is assembled from a can of chips and a plastic container. A limit switch with a built-in LED is used as a button. It took about a week to train the cat (trained in the evenings). The cat quickly figured out where to put your nose to pour a portion of dry food. A homemade dispenser rotates a servo. The servo drive is controlled by the Arduino board using a button that the cat presses on its own.

Feeder for cat Circuit board

The button on which the cat presses with its nose:

button cat

dispenser device:

dispenser device lower part:

finished device:

Using the potentiometer, you can adjust the amount of feed per one press. An electronic key on the transistor is needed to disable the servo between pressing the button. This will prevent the servo drive from breaking if the feed is stuck in the dispenser. Details of work and assembly, see the video

Schematics

Code

feeder_for_cat.ino

#include <Servo.h>
int CatButton;  //  
Servo servo1;   //  servo  Servo

void setup() {

  pinMode(3, OUTPUT);     //  3 
  pinMode(11, OUTPUT);    // 
  servo1.attach(9);       //     

// 
  analogWrite(11, 20); //   
  servo1.write(10);    //       
  delay(250);          //       
  analogWrite(11, 0);  //   

}

void loop() {

  CatButton = analogRead(A0); //      

  if (CatButton > 700) {      //       
    analogWrite(11, 20);      //     ()     
    digitalWrite(3, HIGH);    //    
    servo1.write((map(analogRead(A1), 0, 1024, 0, 180))); //    
    delay(250);               //     
    servo1.write(10);         //  
    delay(250);               //     
    digitalWrite(3, LOW);     //    
    analogWrite(11, 0);       //    
    delay(500);               //       
  }

}

Credits

issaom

6 projects • 16 followers

Self-service cat feeder

Things used in this project

Hardware components

Story

Custom parts and enclosures

feeder_for_cat_electrical_circuit_diagram_Hp1aj46FH7.jpg

Schematics

Feeder for cat Electrical circuit diagram

Code

feeder_for_cat.ino

Credits

issaom

Comments

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Self-service cat feeder

Self-service cat feeder

Things used in this project

Hardware components

Story

Custom parts and enclosures

feeder_for_cat_electrical_circuit_diagram_Hp1aj46FH7.jpg

Schematics

Feeder for cat Electrical circuit diagram

Code

feeder_for_cat.ino

Credits

issaom

Comments

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