Summary

This is another design of a fish feeder powered by arduino. The arduino uno is a separate unit from the feeder.

All you need:

servo
arduino

No bearings required

Print without supports at 10% infill
PLA:
Extruder temp at 200C and bed temp at 60C

Instructions

Arduino code:
// Speedy Auto Feeder v4 on v6 firmware

include

include

include

int flag = 0;
Servo myservo; // create servo object to control a servo
int pos = 0; // variable to store the servo position

void setup()
{
myservo.attach(9); // attaches the servo on pin 9 to the servo object
myservo.write(0); // tell servo to go to position in variable 'pos'
}

void loop(){
// 1
myservo.write(180); // tell servo to go to position in variable 'pos'
delay(1000);
myservo.write(0);
delay(172800000); // Wait 2 days or 172800000 ms
//delay(5000); // Wait 5000 ms

// 2
myservo.write(180); // tell servo to go to position in variable 'pos'
delay(1000);
myservo.write(0);
delay(172800000); // Wait 2 days or 172800000 ms
//delay(5000); // Wait 5000 ms

// 3
myservo.write(180); // tell servo to go to position in variable 'pos'
delay(1000);
myservo.write(0);
delay(172800000); // Wait 2 days or 172800000 ms
//delay(5000); // Wait 5000 ms

// 4
myservo.write(180); // tell servo to go to position in variable 'pos'
delay(1000);
myservo.write(0);
delay(86400000); // Wait 1 days or 86400000 ms
//delay(5000); // Wait 5000 ms
}

Automatic Turtle/Fish Feeder Version 4