1 Introduction
2 Main Loop
 2.1 Project Functionality
 2.2 Project Design
3 Barcode Function
 3.1 Project Functionality
 3.2 Project Design
4 Digital Lock
 4.1 Project Functionality
 4.2 Project Design
5 Sprayer Function
 5.1 Project Functionality
 5.2 Project Design
6 Add Fluid
 6.1 Project Functionality
 6.2 Project Design
7 Conclusion
8 Acknowledgement