Kids OK with adultArduino NanoLevel 2/3
Scheduled Pet Feeder
A clock module triggers meal times and a 3D-printed auger pushes out the same portion every time.
Kids OK, with an adult
DIY project. Children must build this only with an adult (16+ years) beside them at all times. Not suitable for children under 8 years.
Strictly follow the description given with this video.
Video
The video link will be added here soon.
How it works
- The DS3231 keeps exact time, even when power goes off.
- At meal time the Nano runs the 360° servo for a fixed time.
- The servo turns the auger, which pushes dry food out.
- The button gives an extra feed any time.
Parts you need
- Arduino Nano× 1Buy
- DS3231 RTC× 1Buy
- SG90 360° (continuous) servo× 1Buy
- Push button× 1Buy
- 5V 2A adapter× 1Buy
Kit for this projectPrice on request
Get the kitWiring
PowerGroundSignal
| # | From | Connect to |
|---|---|---|
| 1 Signal | DS3231 SCL | Nano A5 |
| 2 Signal | DS3231 SDA | Nano A4 |
| 3 Power | DS3231 VCC | Nano 5V |
| 4 Ground | DS3231 GND | Nano GND |
| 5 Signal | Servo signal | Nano A2 |
| 6 Power | Servo red | Nano 5V |
| 7 Ground | Servo brown | Nano GND |
| 8 Signal | Button (feed now) | Nano A3 |
| 9 Ground | Button other leg | Nano GND |
3D print files
- auger_screw.stlFood-safe PETGLink at launch
- hopper_tube.stlFood-safe PETGLink at launch
Code
The tested Arduino / ESP32 code for this project will be posted here, ready to copy.