WEEK-13

Applications and Implications

Assignment

individual assignment:
  Propose a final project masterpiece that integrates the range of units covered, answering:

What will it do?

My Idea for final project is to design a Automatic Hot Water Dispenser, the reason behind this idea is that, In winter i used to drink warm water and it is dificult for me to hot the water on stove when you need.I am belong remote area, where unavailability of gas, There is use to cook or making tea by burning of wood.

Who's done what beforehand?

After searching on internet i found a lot of hot water dispenser but there cost are too high and consume more power.
So i want to construct a low cost hot water dispenser which consume less power and can be operated through mobile application.

Hot water dispenser

Price of Hot water dispenser.

What will you design?

I planned to design Automatic Hot Water Dispenser using skills which I have learned while doing fablab course. While considering above mentioned Automatic hot water dispenser, my project working will be different from their work. I design a system in which Dispenser is managed on bluetooth, a person excess Hot water dispenser by using his mobile or laptop.

What materials and components will be used?

• Solenoid valves


• Metallic storage tank


• Water immersion heater


• Water proof (DS18B20) digital temperature sensor


• HC-SR04 ultrasonic sensor


• Bluetooth Module HC-05


• 4'x4'x16mm MDF Board


• Acrylic Sheet


• Leonardo Board along with circuitry


• PVC flexible pipe Ø10mm


• Brass hose nipples Ø10mm


• Brass bush with nut


• 12V Relays.


• 12V 2Amp Adapter.


• PLA for circuit 3D printed box.

Where will come from?

most of the components and material are from FABLAB Khairpur, these are some components which I bought, the list is mentioned below:

• Water proof (DS18B20) digital temperature sensor(Sadar Bazar- Karachi)


• Metalic storage tank (Local Shop - Khairpur)


• Water immersion heater (Bought locally)


• Solenoid valves (from hallroad.org Click here for link)


• 12V Relays (Bought locally)


• PVC flexible pipe Ø10mm(Bought locally)


• Brass hose nipples Ø10mm(Bought locally)


• Brass bush with nut(Bought locally)


• 12V 2Amp Adapter (Chineese adapter bought locally)

How much will they cost?

Components	Number of components * Price of components(USD)	Total price (USD)	link
Solenoid valves	2 * 5.2	10.5	click here for link
Metalic storage tank	1 * 4.5	bought locally
Water immersion heater	1 * 3.3	bought locally
Water proof (DS18B20) digital temperature sensor	1 * 1.2	bought locally
HC-SR04 ultrasonic sensor	1 * 3.95	Fab inventory	click here for link
4x4-ft 16mm MDF Board	1 * 7.3	bought locally
1x1-ft 3mm Transparent Acrylic Sheet	1* 1.04	bought locally
Bluetooth Module HC-05	1 * 2.6	Fab inventory	click here for link
Atmega32U4	1 * 4.2	Fab inventory	click here for link
PVC flexible pipe Ø10mm (L=2meter)	1 * 0.04	Bought locally
Brass hose nipples Ø10mm	3 * 0.133	0.4
Brass bush with nut	1 * 0.33	Bought locally
12V Relay	3 * 0.13	0.39
12V 2Amp Adapter	1 * 1.5	bought locally
PLA 3D printed pieces	$24.5/1kg required 2g.	0.049	www.digikey.com
Total Cost	--	41.299	--

What parts and systems will be made?

• 3D printed Circuit Cylinder


• Press-fit Wooden Dispenser


• Laser Cutted Stand


• PCB of Bluetooth


• PCB of Relay


• PCB of ATMega32U4 board


• Application on App inventer


• Networking & Communication between 32U4p and Bluetooth module

What processes will be used?

• 3D Designing using Solidworks to do all 3D Designing of final project includes stand for placing glass or cup, press-fit dispenser.


• 2D designing all done using InkScape in which files for laser cutting.


• Circuit designing done in Eagle 7.5 in which Atmega32U4 board, relay board and bluetooth pcb designing involves.


• Electronics Production generated .rml files from Fabmodules, milling using SRM-20 and soldering components.


• Electronics Programing For programing the board using ArduinoIDE


• Interface and Application development made using MIT app inventer.


• Networking Using Bluetooth module interfacing with Mobile app and wired interfacing with 32U4 board

What questions need to be answered?

• How to make application more user friendly so it show the tank level ?


• How to add auto refill water system ?


• How to easily implement it on Institutions, Restaurants and homes ?


• How to market this product ?

How will it be evaluated?

it should be evaluated on it's utility and the process involved in making this , As this project involve most of the skills which i learn during my weekly assignment as this involve, Designing, 3D printing, Laser cutting, computer controlled cutting, manufacturing technique, input and output devices as Ultrasonic sensor,digital temperature sensor for input, and solenoids for output, bluetooth for interfacing and electronics production etc.

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Automatic Hot Water Dispenser by Tariq Ahmed Shaikh is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at http://fabacademy.org/2019/labs/khairpur/students/tariq-ahmed/.