Instruction:

1. install arduino sdk
2. unzip adafruit-Adafruit...zip >> you will see AFMotor.cpp and AFMotor.h in the folder
3. rename this folder to AFMotor
4. move AFMotor to your arduino libraries folder, mine is /Users/xxx/Documents/Arduino/libraries
5. open arduino sdk
6. File >> Open >> Select fish-feeder.ino
7. Connect your arduino to USB
8. Tool >> Port >> Select your port for uploading
9. Sketch >> Upload

Material:

1. soft clay
2. nutella container & small canister
3. empty tablet's glove
4. straw
5. arduino uno
6. adafruit motor shield