The document describes a "Smart Tub" project that aims to develop a system to consistently control water temperature in bath tubs. The system uses a temperature sensor and heating coil controlled by an Arduino board to monitor and adjust the water temperature. It also lists objectives of the project, a block diagram of the system components, and a bill of materials for the hardware required. The conclusion states that the smart tub provides automated control and monitoring of the water temperature and that future work could expand its features.

1. Smart Tub

2. Problem Statement

3. We hear everyday about
inconsistent water temperature in
bath tubs and showers. Most of the
time its done through manual
turning of hot water and cold water
pipes to get the right temperature. It
leads to often skin burns and other
heat related hazards.

4. Objectives

5. Objectives of Smart Tub
● Develop a hardware model to test sensor
based smart tub in real time.
● Use an appropriate temperature sensor to
monitor the temperature values.
● Use a heating coil, which can be controlled
electronically to heat the water.
● Use appropriate power supply to power
the whole system.

6. Block Diagram

7. Block diagram of Smart Tub

8. Hardware

9. 3D Modelling and 3d Printing

10. Electronics Components

11. Arduino UNO Platform is used for programming and
control of electronic components.
Relay modules are used for the on off control.
Temperature sensor is DS1820.

12. Coding

14. Bill of Materials

15. 1 3d model printing 23 hours 300 AED
2 Water Hose 1 meter 25 AED
3 Fevicol for water proofing 200 ml 20 AED
4 Arduino UNO 1 unit 65 AED
5 DS1820 Sensor 1 unit 55 AED
6 4 Channel Relay Module 1 unit 35 AED
7 Power supply 12 V 1 unit 20 AED
8 Power regulator module 1 unit 45 AED
9 Heating Block 1 unit 45 AED
10 LCD Keypad unit 1 unit 55 AED
Total 665 AED

16. Conclusion

17. Smart tub provide a seamless interface
for control, monitoring and visualization of
process involved. Adding features to
include mixing of essential oils, getting
the right temperature for various type of
bath tub experiences, adding more user
selective modes etc will be the scope of
future work.