16. Applications and implications
What will it do?
My final project is a portable device to heat water on the run, specially for drinking "MATE".
This device will be operated via a cellphone app and it will get the power from a DC source.
It has a sensor to measure the water temperature in real time, send this information to the cellphone.
Knowing the temperature allows the user to know when the perfect "MATE" temperature is reached.
Who's done what beforehand?
This kind of device was vastly used in "MATE" drinker's countries, like Uruguay, Argentina, South of Brazil and Paraguay.
The problem with those device were that they operate with high voltage, had no safety features and after a lot of years of use, all the countries forbid their use.
There are many similar projects, but none of them combine the safety, the battery operated or low voltage source and the smart function.
What will you design?
Well i will design almost everything, except the heater resistor, the bluetooth module and the temperature sensor.
From the boards, the soldering, the programmming through the 3d modelling to the printing of the parts.
What materials and components will be used?
I will use PETG for the capsule and the box, a ceramic spacer between the heat resistor and the sensor.
Also some PCB boards, to be machinable to make the boards.
Some electronic components, the heater resistor, the bluetooth module and the ds18b20 sensor will be buyied from a local dealer.
Where will come from?
Mostly from local dealers, but some could be imported from overseas.
How much will they cost?
It depends much from the country where it will be fabricated.
Between electronic components, milling time, 3d printing time, electric components (such as shower heater and battery), assembly time and programming, almost 250 dollars more or less.
If we consider a big production the cost gets down and the manufacturing process will change.
Maybe it looks expensive compared with similar products in the market, but this product is safe and smart, and it is directed to an especific market niche.
What parts and systems will be made?
The cases, the boards, the capsule, the spacer and the app will be made by 3d printing or inject moulding if it gets to massive production.
There going to be a module board for the sensor, one for a mosfet, one for a regulator, and one bard to manage all.
What questions need to be answered?
1-it is no harm to human?.
2-what type of battery need?
3-is it safe to childrens or people with disabilities?
4-Could it be more portable?
5-Can it be from another materials or made by another processes?
6-Is it worth to pay for it?
How will it be evaluated?
I will make another prototype with full potential to test it with some users, then, test different materials to see which one is better.
Video final Project Slide final Project