Automatic Cat Feeder

Hi community

This is my design for an automatic catfeeder System.

WHY? and what can it do?
My cat has a problem with its eating-behavior, so he is always hungry. That's what made me think of a feedersystem, which releases some dried catfood once in a while.

The Setup contains following 3D printed parts:
- Unterteil
- Oberteil
- Spirale ganz V2.0
- Einfüllstutzen
- Deckel
- Deckel unten
- 2x Halter

The Electronics and mechanical Parts are as following:
- 1 Arduino Nano
- 1 Stepper Motor 28byj-48
- 1 Stepper Motor PCB ULN2003
- 1 microUSB PCB (to power Arduino and Motor parallel)
- 1 ON/OFF Switch
- 8 Neodym Magnets 5x8mm
- 1 15mm 5mm Stainlesssteel rod
- 1 5x11x5mm bearing
- 2 M3x10 Screws
- 2 M2x8 Screws

It is a very easy setup and so is the Arduino Sketch.


#include

#define STEPS 4076 // the number of steps in one revolution of your motor (28BYJ-48)

Stepper stepper(STEPS, 8, 10, 9, 11);

void setup() {
// nothing to do