Pet food dispenser with Arduino Uno R3

Project about pet food dispenser with Arduino Uno R3, keypad 4x4 and LCD display 16x2.

Content

This project has two options:

• Option A: The LED turns on and off for 5 times fast, then stays on while the servomotor opens the opening to let the pet food out 3 times fast, finally the LED turns off and plays a short melody.
• Option B: Mute or unmute the piezo buzzer.

Demo

If you want to see the demo of this proyect deployed, you can visit Demo of the proyect.

Components list

• Arduino Uno R3
• Protoboard
• LCD Display 16x2
• Keypad 4x4
• Servo-motor
• Piezo buzzer
• Led
• 2k ohms potentiometer
• 220 ohms resistor
• 1k ohms resistor

Schematic view

Simulation photo