Applications Implications
1.What does it do?
The "Smart Water Dispenser" is a system that dispenses a specific volume of water automatically. It works by measuring the water flow rate using a flow sensor and stopping the water flow once the desired volume is reached. Users can access the dispenser by using a smart card that is programmed with their personal information, such as their name, account balance, and water usage history.
Project Sketching
2.Who's done this beforehand?
I was inspired by the Company
HOW TO ELECTRONICS which was Build
DIY Water Filling Machine using Flow Sensor & Arduino and Final Project of Tariq Ahmed Shaikh which is
Automatic Hot Water Dispenser
3.What did you design?
I designed a Smart Water Dispenser casing by Laser Cutter. I also designed an embedded system connected to a RFID Module,LCD Screen, Flow Sensor, Three input Buttons,Obstacle Sensor and Solenoid valve wich will used for measuring the water flow rate using a flow sensor and stopping the water flow once the desired volume is reached
4. What materials and components were used?
1. Microcontroller (ESP-wrom-32): Microcontroller which will be used to control the flow of water.
2. Water flow sensor (YF-S201): A flow sensor can be used to measure the amount of water flowing through the dispenser.
3. Smart card reader: A card reader can be used to read information from the smart card.
4. Solenoid valve: A solenoid valve can be used to control the flow of water.
5. LCD screen (20X4): An LCD screen can be used to display the amount of water dispensed and other information.
6. Power supply: A power supply can be used to power the microcontroller and other components.
7. Button: providing an input interface for users to select the desired dispensing option.
8. RFID Card:RFID card can be used to grant access or authorize specific users to dispense water and loading money
9. Voltage Regulator IC: A voltage regulator IC is used to regulate and stabilize the voltage (3V)level in a circuit.
10. MOSFET: It is a type of transistor that can control the flow of current in a circuit. MOSFETs are often used as switches
11. Button_Switch: Is a mechanical switch that is activated by pressing a button.
12. Resistors: They are used to control the amount of current or voltage in a circuit, to limit current flow, and to provide specific resistance values.
13. Capacitors: Capacitors store electrical energy in an electric field and release it when needed.
14. LED_SMD: LEDs are commonly used as visual indicators in electronic circuits
15. Connectors: Connectors are mechanical devices used to join or disconnect electrical circuits.
16. Buzzer: It is commonly used to generate audible alerts or notifications in electronic systems
17. Acrylic: Acrylic Will be used for the enclosure or casing of the dispenser.
18. Copper PCB: A Copper PCB (Printed Circuit Board) is a board made of insulating material with a layer of copper
19. Obstacle avoidance sensor: is designed to detect an obstacle or the difference in reflective services
5.Where did they come from?
I got all the electronic components and material used in my project from FabLabRwanda
6.How much did they cost?
Table Example
7.What parts and systems were made?
My system was made by using the differents skills and knowldge we got from fabacademy
a. Computer-aided design
2D & 3D Design
b.Computer-controlled cutting
lasercutter
c. Embedded programming
ESP-wrom-32
d.Electronics design and production
Design Circuit, PCB Milling
e.Input Devices
RFID system and Key Pad
f.Output Devices
LCD Display,Water flow sensor, Water Pump and Solenoid valve, Buzzer
8.What processes were used?
Mechanical system
3D-printed enclosure:From PLA filament I printed the RFID Card Holder and Obstacle avoidance sensor
Laser-cut acrylic component: Gives the enclosure a polished and attractive touch I used this for cutting the Case.
I designed the circuit schematic for the PCB using KiCad software, and I then milled it on a Roland MDX-20A Modela.
Pins, resistors, and headers were attached to the PCB using soldering techniques.
The acrylic portion of the enclosure was made using laser cutting technology.
Electronic system:
Microcontroller (ESP-wrom-32): Microcontroller which will be used to control the flow of water,Water flow sensor (YF-S201): A flow sensor can be used to measure the amount of water flowing through the dispenser,Smart card reader: A card reader can be used to read information from the smart card,Solenoid valve: A solenoid valve can be used to control the flow of water,LCD screen (20X4): An LCD screen can be used to display the amount of water dispensed and other information and Button: providing an input interface for users to select the desired dispensing option, and Obstacle avoidance sensor: is designed to detect an obstacle or the difference in reflective services
9.What questions were answered? What worked? What didn't? How was it evaluated?
- How to use a laser cutter
- How to use a 3D printer
- How to make a PCB
- How to solder
- Soldering of modules in board instead of using pins
- How to connect Flow sensor
- How to connect Solenoid valver
- How to connect RFID Reader Module
- How to connect LCD Display
- How to connect Obstacle avoidance sensor
- How to connect Button
10.What worked? What didn't?
The system works very well all part and the components run very well except the MOSFET replaced by Relay at the last point. then after the system runs very fantastic
11. How was it evaluated?
This project Smart Water Dispenser will applied in different sector and plays the important role of providing clean water on affordable cost.
12. What are the implications?
The implications of this system is to facilitate my community to access to clean water with, affordable cost, because no packaging cost required here, and also the system will boost the cashless policy because we use smart card for paying water
Furthermore, the project provides an excellent learning opportunity in electronics, PCB manufacturing, 3D printing, and laser cutting.