What Is It?
The HydroHomie is a home appliance automatic water dispenser that detects the presence of a vessel and dispenses water to a user-inputted amount through a keypad. This project was developed by a small project team of 3 as a final for the ME106 Fundamentals of Mechatronics course at SJSU.
Below is a video report of our project:
Project Components
Our project utilized the following components to handle the user interface, detect the presence of a cup, and measure the volume of water flow being dispensed.
- Raspberry Pi Pico Microcontroller
- 4 x 4 Matrix Array Membrane Keypad
- HD44780 IIC I2C1602 LCD Display
- HC-SR04 Ultrasonic Sensor
- N-Channel MOSFET 60V 30A
- 12V Brushless DC Pump
- Volumetric Hall Effect Flow Sensor
- 12V 2A Power Supply
- Adjustable Voltage Buck Converter
- Voltage Logic Level Shifter
Case Study
As a subsidiary project, a case study was conducted for a part that needed to be designed from reverse engineering typical fittings in order to create an uncommon adapter fitting for the Hydro Homie. This case study includes:
- SOLIDWORKS CAD and modeling
- FEA Simulation
- 3D Printing
- Rapid Prototyping and Iteration
More information on the engineering design process and case study can be found in the full case study report below:
More information regarding this project can be found in our project report below:
Credits:
Created with an image by Casimiro - "Real Python code developing screen. Programing workflow abstract algorithm concept. Lines of Python code visible under magnifying lens."