Programmable pet food/pill dispenser
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This automatic pill/food dispenser can be programmed at a specific time to provide food or medication once a day.
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Medical Tools
- Licencja
- Creative Commons — Public Domain
This automatic pill/food dispenser can be programmed at a specific time to provide food or medication once a day.
The device connects to your wifi network to keep the current time up to date.
Material:
- PLA filament
- PCB (1 for the buttons, and 1 for the rest)
- A piece of Wood
- 2.9mm screws
- 1x ESP32 microcontroller (USB-C)
- 1x OLED display 128x32px (SDA pin: 21 / SLC pin: 22 → depends on the ESP32 board used)
- 2x tactile switch buttons (pin 26/27)
- 2x 10kohm resistance
- wires
- 1x USB-C cable (more convenient with integrated switch)
- 1x 5v 1A USB alimentation
- 1x 9g servo motor (for bowl rotation) (pin 2)
- 1x 100uf capacitor (for servo motor)
- 1x IR sensor (Tells the program whether the bowl is open or closed) (pin 33)
Wiring :
/!\ Note that the printable case requires a 128x32px screen (not 128x64px). Also, it is recommanded to add a 100uf capacitor above the + and - pins of the servo motor to stabalize the power supply (not available in the Wokwi interface).
The IR sensor is used to monitor the status of the bowl (open/closed). It is screwed to the underside of the wooden board on the inside of the bowl housing.
The Code