Arduino Lego Fish Feeder

Simple arduino sketch for a DIY fish feeder.

This simple project uses a servo which is housed in a Lego frame to rotate a container on a scheduled basis to automatically feed our pet fish.

Components

The project uses the following:

• Arduino Uno
• Arduino Protoshield board
• SM-S4303R continous rotation servo
• Lego housing to hold servo and rotating container (in our case a Playdough container with a 5mm hole drilled in the side)

Pinout/Schematic

• PIN 8 - LED status light (wired via the appropriate resistor).
• PIN 9 - Control wire to servo (powered via appropriate power supply/common ground with arduino via breadboard).