Introduction: Re-moded BETTA Fish Feeder
Motivated by Betta Fish Feeder, this projects uses the basic design by Trevor_DIY and applies new functions to it. Feeding fishes on it's own with a timer set, this re-moded version adds more useful tools to the user, such as how many spins until a refill for the food is needed, and a warning when it is actually empty.
- Arduino Leonardo
- Arduino power adapter (or USB adapter)
- Motor driver and stepper motor (28BYJ-48)
- Hard Card board
- Hot glue
- Fish tank
- Betta fish pellets
- 5 light bulbs,
- 10 crocodile clip wires
- double-output wires
Step 1: Setting the Motor
- Plug the stepper into the motor driver with the white connector.
- Connect the Arduino output pins 8, 9, 10, 11 to the motor driver input pins 1N1, 1N2, 1N3, 1N4 respectively.
- Connect the Arduino power pins GND and 5V to the motor driver power pins - and + respectively.
- Connect the Arduino USB port to your computer and start the Arduino software.
Step 2: Cutting the Wheels and Assemble
3D printed wheels, used by the original creator, is a much faster choice with better quality. However, if such thing is far to reach, using card board to cut is also a viable choice.
- Cut two similar circles.
- Cut the first into a axis-wheel like shape, with a small hole in the center.
- Cut the second with a hole in the center, and an another small hole next to the center.
- Glue the second wheel on the bottom, on top of the motor, but not connected to the motor.
- Put the first wheel on top of the second, with the center hole connected to the motor.
Step 3: The Lights (add-on's in This Project)
What's different from the original project, is the reminder feature installed in this project.
- 4 light bulbs (white) indicates the number of spins left before the food is emptied. For example, 3 bulbs bright means three spins left, while 1 bulb bright means one spin left.
- The red light bulb with turn on once all spins are used, as a warning for the user to refill the food.
- Install the 4 light bulbs to 8, 9, 10, and 11 respectively, with resisters, wires, GND and 5V input/output installed etc.
- install the red light bulb to 13
Step 4: Feeding the Fish
All are done! Now it's time to put your creation into work!
- Place the motor on top of the fish tank
- Put food into the empty holes of the first wheel
- Power On!
Step 5: Links
https://www.instructables.com/id/Betta-Fish-Feeder/ (original project)