Logbook

Weekly Report

1st Week Report

This week we started with teambuilding. We also picked our top 3 themes:

smartification of everyday objects

smartification of buildings

smart marine habitat structures

2nd Week Report

Define target group: households

Define problem: water usage waste

Come up with a planning: the editing of the wiki will be rotated through every team member every week

Brainstorm ideas

3rd Week Report

define solution: smart mixer for shower. Cold water gets redirected to water boiler, instead of spilling

set up JIRA

black box diagram

Cost analysis

4th Week Report

meeting with professor Manuel Silva

Research on boilers

Selection of materials

Target group tweaked: environmentally conscious home owners who own a tankless boiler

5th Week Report

Version tweaked: we are going to redirect the cold water to the toilet instead of the boiler

Target group tweaked: environmentally conscious homeowners who have a bathroom with a toilet and shower in it

Meeting with Professor Benedita

Made the drawings for the tank for the toilet where the water can go

Made a cardboard model

Finished the structural schematics

Choose a topic for the Ethical Case Study

Update the black box

Made an Elevator pitch, BMC, flyer for MACOM

Brainstormed about different kind of sensors and valves

6th Week Report

Started refining the interim report and wikipedia

Almost finished the final component list

Calculated the product cost

Decided which SDG fits with our product

Made the 3d model

Calculated expected cost of operation of the product

7th Week Report

Uploaded 3D model

Finalize the interim report

Improve cost calculations

8th Week Report

Leaflet

Poster

Paper abstract

Packaging Solution

9th Week Report

10th Week Report

Meetings

1st Meeting (2025-02-27)

Agenda:

Presentation

Modus operandi

Project proposals

Electronic logbook (Wiki)

Minute:

Introduce here a brief report of the meeting.

2nd Meeting (2025-03-06)

Agenda:

Define target group

Define problem

Come up with a planning

Brainstorm ideas if time allows it

Minute:

We did not know this agenda was for the meeting with teachers. Benedita told us about the report. We explained the three problems we came up with:

Food waste

Water consumption waste

Energy consumption waste

3rd Meeting (2025-03-13)

Agenda:

Problem

Target audience

First solution blackbox

Gant chart

Discussion about the components

Minute:

Instead of thinking of a whole system, we should focus on making a product. We are going to focus on a smart mixer. We need to know how to control the expansion tank. We need to figure out if it is worth making the product with a cost analysis. The professors recommended us to have a meeting with Professor Manuel Silva

Minute meeting with Professor Manuel Silva

Think of the question: 'if it was your own, would you want it? Where should the device be in the room?' Professor Silva did not know if it is possible to send the water back to the boiler. We have to ask ourselves the question why we need the tank and why we don't send the cold water back to the boiler. We need to do research on how the boiler works. The main 3 problems are: - Cost - Space - Construction Works

4th Meeting (2025-03-19)

Agenda:

Cost analysis

Competitor analysis

What we have learned from boiler research

Explaining our version choice

Minute:

We need to redo our components and material list with prices because it was not correct.

We also need to redo the black box diagram with all the updates of our product.

We have to analyse which of the two versions(back to the boiler, guided to the toilet tank) we want to focus on.

Meeting Professor Benedita (2025-03-25)

We chose to go through with the toilet tank version. We still have to do some research on different valves, should we use a 3 way electrical valve or two seperate solenoid valves? Where should the extra toilet tank be located and how would we make the connection between the two tanks? We came up with two volume sensors that would send out the signs to the valves between the tank, the water supply and the toilet.

5th Meeting (2025-03-26)

Agenda:

Show System Schematic

Show Cardboard model

Show flyer and logo?

Minute:

We have to justify why we want to use certain components which are more expensive like the solenoid valves

School has electrical 3-way valves

Professor Benedita thinks we can put a tank above the toilet and it provides enough pressure to direct the water to the toilet

Professor Jorge told us he also thinks the solenoid valves work better because you have the Normally Open and Normally Closed function

Flyer:

Suggestion: Background pipes could be more colourful; Use the word 'maintenance' instead of 'repairment'; Text needs to be as straight forward and simple as possible.

Likes: Sans Serif typography

To do:

Improve chapter 7

Update component list in deliverables

6th Meeting (2025-04-3)

Agenda:

Electrical Scheme

New flyer version

Progress so far

How to reference in wiki

Minute:

Feedback wiki: - Start page has no titel, goals and requirement - Logbook: add completed activities - Report: add glossary - SOTA: introduction, big description - Chapter 7: caption the figures, reference the figures - No description about smart system (chapter 7) - Colours for the concept drawing - Figure on the ideation (of brainstorm) remove letters up top - No drawings of the actual product

Feedback schematics: - Upload schematics to the wiki, teams and maybe in mail to Paolo - Is the Arduino capable to power the leds without a intermediate circuit

See what is the maximum current to send out

Usually you need a current boost !check before sharing!

Feedback flyer: - Maybe: reuse instead of save your cold water - Maybe: use drain instead of let it go to waste - Heading on the second checkmark, so you need a heading on the first checkmark - Water reservoir with a small W - Maintainance is without capital M if support is without

Presentation: Professors will share with the teams a questionnaire, you will do a self-assessment No papers, no smartphones for the presentation, be relaxed, equal presenting, probably 10 minutes, at most 10 slides, Problem → requirements that derives from SOTA, from analysis, market analysis, ethics analysis → proposed concept → detailed schematics (smart system and object) → list of materials and components All about presenting proposed solution. How do all the research merge together

7th Meeting (2025-04-16)

Agenda:

3D Model

Expected cost and selling price of product

Ask professors about components we can use

Sustainable Development Goal

Ask professors about reference in bibliography

Minute:

The professors can't enter in the scrum's link.

Video: Should write the capacity of the tank and think about putting plastic fish inside or something like that to make it mor fun and decorative.

Prices must be writen like XX.XX €

Portuguese taxes are 23% of the price, make sure we have that in order.

For the prototype's components we need to make a table and send it to the professors. Probably Abel or Jorge can help us.

8th Meeting (2025-04-30)

Agenda:

Updated schematics

Components

Report 2.5 table 2

Questions about packaging solution

9th Meeting (2025-05-15)

Agenda:

Questions about the stress test

Status of the components

Leaflet

Electricity lab?

Minute:

!Next week: introduction and related studies regarding the scientific paper !Calculations written and inserted using wiki facilities !Write 7.5 Prototype Development Do not use spaces in the string which corresponds to the key, the one about direct macro Chapter 4: missing 4.7 and 4.8

Packaging solutions What kind of recycled plastic? One thing is to have recyclable material, the other is to have degradable plastic What kind of filament. Provide a comparison table: is it degradable, biodegradable, reused, water resistant The packaging solution is for transport, it often comes with marks and dents, this case can suffer from that. It needs extra protection for shipping, our packaging can be when you get it from the store. Create a narrative to explain the situation The corners need to be maybe rounded, so people don’t hit on the hard corners. Maybe some protective corners How do we connect the two parts

Questions about the stress test Fixtures: Fix the points Take everything you don’t need away from the simulation, only the important things Take the hole from the pipe on top away and fill it with the same material (of the tank), then you can apply pressure What is the thickness of the wall? Ask professor for help: jfj@

Status of the components Benedita made the request to have authorization to order, probably this week

Electricity lab If we have breadboards and jump boards, we don’t need it. If we solder, they can not reuse it next year

Last meeting We exemplified the user interface. Potentiometers are components that have some wear and tear (friction). We are placing it in a wet environment, so we must ensure that the shaft is waterproof, if it is plastic it is fine.

To do Work on paper Work on structure of prototype Work on report - calculations

10th Meeting (2025-05-22)

Agenda:

Updates packaging solution
- Book a space for assembly with basic equipment

Microcontroller not working?

Comparison table packaging

Activities

https://eps2025group4.atlassian.net/jira/software/projects/SCRUM/boards/1/backlog?atlOrigin=eyJpIjoiN2Y3ZmU4ZGI0ODQwNDRmYzhiNDdmZjc1MzU2MzdkNzQiLCJwIjoiaiJ9

Start	End	Task	Description	Who