Automatic fish feeding device

thingiverse

Sorry about the messy code! You need a basic Arduino board like Arduino NANO, MINI, or UNO. And also a 28BYJ48 stepper motor. If your fish food has a diameter larger than 2mm, you will need an additional tiny screw (Prt0003). Arduino Code: #include "Stepper.h" #define STEPS 100 Stepper stepper(STEPS, 2, 3, 4, 5); // CHANGE THESE TO YOUR BOARD'S PINS int previous = 0; long interval = 7200000L; // how long you want it to step 2 hours means unsigned long previousMillis = 0; void setup() { stepper.setSpeed(80); } void loop() { unsigned long currentMillis = millis(); if(currentMillis - previousMillis > interval) {previousMillis = currentMillis; stepper.step(3500); // how much steps you want } } if (currentMillis < previousMillis) { previousMillis=currentMillis; } } Print Settings: Rafts: doesn't matter