Monthly Archives: September 2017

Group 6: update on lasercutting

Today Alvin and arman continued doing some lasercutting. Here is the process of using the lasercutter. The machine we used is an Epilog Laser Fusion M2, with FlexiDESIGNER Software. Before doing any cutting, we start off in a CAD model, in this case Solidworks. Then we saved the file as an .dxf file and exported this to the FlexiDESIGNER program.

Then we did the right adjustments, grouping so the model can be moved and place it in the lower left corner using “DesignCentral”.

 

After this you hit print with the configurations like on the pictures above.

And finally you get this.

See you soon,

Group 6

Smart Mirror: Update on toothpaste dispenser

Toothpaste dispenser

The blog will be divided in 3 parts:

Movement

Parts

Materials

Movement

The tooth paste dispenser is based on a crankshaft movement. The crankshaft movement is an easy, cheap and reliable movement and therefore a suitable solution.  There is chosen to make the movement with bushes and not with bearings. The movement to fill one tooth brush is between two and four degrees in angle of engine rotation. That means that it takes at least 60 tooth brush fills before the engine made a 180 degrees turn, therefore is chosen that bearings are not required.

Parts

The parts will be mentioned from engine to the cylinder.

Engine

The engine is a servo motor with 180 degrees turning capability.  The decision is made for the servo engine because it’s capable to stop every degree of engine rotation.  The original engine attachment is used in the design.

 

Pushrod arms

The pushrod from the engine is five centimetres long to push all the toothpaste out of the cylinder. The arm between the piston and the engine pushrod is 12 centimetres long to prevent collision between the cylinder and the pushrod arm.

Bushes

The bushes are used to make the movement possible without too much friction and to give space to turn the engine 160 degrees without collision.

 

Piston and cylinder

The piston has a diameter of 40 millimetres. The form is chosen to push everything out of the cylinder. There is an indent made to add a O-ring. There is a difference of 0.6 millimetres between the cylinder and the piston, the O-ring will cover up the difference and take all thetooth-paste out.

Connection pushrod arm to piston:

The piston will be assembled with a M4 wing bolt for easily disassembling. The M4 nut will be glued in an engraved spot in the pushrod arm. The consumer will be able to refill the cylinder fast and easily.

Connection engine attachment to pushrod arm:

In the engine attachment are 12 holes of 1 millimetre, they are also added in the pushrod arm. The connection will be with 12 pins of 1 millimetre and they will be glued in place.

Materials:

The pushrod arms are made of 3 mm plywood because it is easy to fabricate and engrave.

The piston and cylinder are made of P.L.E.. The decision for this material is that is able to be 3d printed and the parts are expense to fabricate if they have to be formed out of metal.

Production plan manufacturing cylinder and piston

The cylinder will be printed without the brackets for mounting it to the base frame. The reason for this is that it’s cheaper to cut the mounts than to 3d print them. This also gives the opportunity to disassemble the cylinder.

The piston will be printed in two different parts. The reason for this is that the engrave of the part will be full of construction wires. There is a pin added to one side of the part and there is a hole added to the other side for easy connection without misalignment.

 

Smart Mirror 2017

Progress: 

Mechanical / Arduino: 

We got the servomotor to move as we want it. As soon as button is pushed, the motor starts moving in steps of on degree, after every degree it will check the connected load cell if a certain weight is reached. If so the motor sets back to zero.

This mechanism will push out the toothpaste out of a ourself designed cylinder. The required parts such as the pushrod, piston, cylinder and connector to the motor are designed in solid works (Youp). They are currently getting 3D printed.  See following update.

Electrical: 

We decided to use a power bank to supply the Arduino and out of it the motors. To not drain the power bank with the motors not even running we decided to add a relay to the circuit. Through the pushbutton the relay will close and the motors will connect.

This gives us the benefit of longer operating hours.

Selvbalanserende Robot Uke 34

Vi er en gruppe bestående av fem ingeniør studenter, med tre fra elektro og to fra data.

Elektro:
Tore André Einan
Jan Christian Fossen
Sharif Yusefi

Data:
Kim André Myre
Bente H. Hestnes

Idémyldring

Vi startet med litt idémyldring i forhold til hva vi ville prøve å utvikle. Vi bestemte oss for å lage en robotarm med funksjoner som gjorde at den kunne sortere ting i forhold til former, farger o.l. Prosjektet ble dessverre dumpa da en av rådgiverne mente det var for lite reguleringsteknikk. Det andre prosjektet vi hadde diskutert var en selvbalanserende robot, så vi gikk for den idéen isteden.

Medisch wangedrag (Group 7H17) Week 37.

We have experimented with the image processing features in MATLAB for the purpose of isolating the information we need from the images we receive from the camera. Currently we have decided to use color thresholder and hughes transform to find lines in the pictures.

Research of different programs, methods that can be used to use a stepper motor / servomotor. Such as finding possibilities to connect servomotor to a 2D coordinate system and how to receive sampling from camera and what materials best suit the “frame” servomotor will operate in.

Ideas about different sketches on the board with keywords of specific characteristics / requirements have been very useful in discussion to make some drawings in solidworks.

Kaffemaksin Gtx TI

Hei
Vi er gruppe 4 bestående av 5 medlemmer spredt utover ingeniørstudiene på HSN.

Fernando Almeida (maskiningeniør student)
Susanne Larsen (dataingeniør student)
Brynjar Thorri Jonsson ( dataingeniør student)
Ole Halvor Ingolfsrud (elektroingeniør student)
Tuan Anh Trinh (elektroingeniør student)

Oppgaver.
Vi skal lage en kaffemaskin med en tilhørende termos, hvor begge av produktene skal ha praktiske egenskaper som F.eks varmeregulering, termostat, mengdemåler og et høyt justerbart utvalg av drikke. I tilleg skal vi ha med en app som skal kommuniserer med kaffemaskin og via appen skal vi også kunne velge hvilken drikker vi vil ha.

Framdriftplan

(22.08.17)
Den første uken brukte vi for det meste til å drøfte ideer og få bekreftet at ideene våre var brukbare oppgaver. Etter å ha bestemt oss for kaffemaskin-ideen, diskuterte vi mer om oppgaven og prøvde å legge til flere elementer til oppgaven.

(29.08.17)
Den andre uken fant vi 2 ulike kaffemaskiner som vi demonterte for å finne mulige deler. I den ene kaffemaskinen fant vi ett varmeelement vi har tenkt til å bruke videre. Vi koblet en spylervæskepumpe sammen med varmeelementet og styrte pumpen med en arduino. Varmelementet måtte vi styre manuelt, siden vi på den tiden ikke hadde ett rele som passet.

 

(05.09.17)
I tredje uken snakket vi mye om design og hvordan vi vil at operasjonene i kaffemaskinen skal fungere. Vi laget illustrasjoner av hvordan kaffemaskinen skulle se ut, og fant ut at alle hadde en ganske lik tanke om hvordan sluttproduktet skulle se ut. Vi har også begynt å se på en app som skal høre til kaffemaskinen, og noen komponenttegninger.

(12.09.17)
I fjerde uken satt vi å testet ut forskjellig komponenter som vi skal ha videre i prosjektet som varmeelement og vannpumpe. Der brukter vi rele til hvert av komponent som blir styrt via Arduino. Siden utgangspenning fra usb til pcen ikke takler drift av vannpumpe valgte vi å koble opp en ekstra 9V batteri. Og varmeelemet bruker vanlig AC spenning så var det bare koble den via et rele og rett inn i stikk kontakt. Vi fikk til å varme opp vannet men ikke til temperatur som vi hadde ønsket, siden varme element hadde temperatur måle fra før valgte vi å bruker den til å overvåke temperaturen i varmeelement.

(19.09.17)
I den femte uken satt vi sammen å se over designe til selve dispenser som Fernando har laget via SoliWorks. Vi har også tatt med en mobil lader som vi skal modifiserer sånn at vi har en stabil 5V DC spenning til diverse komponenter som vi skal bruke, siden 9V batteri som vi brukte til pumpemotor sist gang holdt i 10 min. Vi satt å diskuterte hvordan framsiden av kaffe vil ser ut og hvor mange knapper vi skal ha med.

Mechanical engineering work progress:
The group decided to work on a “smart” coffee machine and a “smart” coffee cup, that both combined can ease the daily life of coffee consumers.
The project includes two main assemblies, the thermos cup, and the machine itself.
The machine will be a stationary object with somewhat large dimensions. At this stage, we have only come to some rough dimensions just to get a feel of how big the machine needs to be, we came to the following dimensions: L:400mm W:300mm H:300mm.
Since we are only working on the machine at this stage, we have not yet made any predictions, apart from the maximal height, to how the cup will look and how it will actually function.
The first design phase was on the machines dispenser and the mechanism to pour coffee from the reservoir in to the cup.
The course supervisors informed us of the different alternatives we had to produce our parts, and our primarily design was based on that information.
We designed our first assembly in a way that it could be “easily” printed by the machines available at the school. The main requirement was that the parts to be printed should not exceed a 200mmx200mmx200mm dimension.
In the design, we used an average thickness of 3mm on all the walls of the machine and no single part was larger than 100mm in height, depth, or width. Despite the efforts to make the parts as thin and small as possible, and that all the parts were inside the required parameters for a printable part, we were not allowed to print them. The average printing time for some of the smaller parts was up to 19 hours of printing, and that was the calculated time if no errors or fails happened in the printing process. We had three equal assemblies to be printed, and that would bring us up to a printing work of several days which made us have to switch strategy and change the manufacturing process as well as the design.
We were advised to choose wood and the laser cutter to produce our parts.
While the assembly design remained the same, all of its constituents parts had to be redesigned, since using wood and the laser cutter requires using 2 dimensional drawings and a completely different assembly approach.
One of the challenges in the design is the fact that some of its parts are round. We want to have control over the level of powder inside our dispensers, and for that to happen we will have to build some of the parts in Plexy glass. The idea is to create a small, narrow window in the front of the dispenser, but since the part is relatively tall, and it will be cut in a way that it will allow it to bend, we will have to use 4mm plywood to ensure enough strength to the part, and 1mm Plexy glass for the window.
Another challenge is to get the dispenser system enough sealed so that the coffee or tea powder won’t get inside the engine and sprockets compartment. Using wood will make it hard to get the mechanism completely sealed, and the use of other materials will have to be considered.
To assemble the parts together we will use a type of super glue that is specifically specified for porous materials.

(10.10.17)

Denne uken har vi klart å få fram den første prototypen av en av våres dispenser. Sånn dere kan se på bilde under har vi valg å gå for tre material på grunn av det er den eneste material type som vi har tilgang til. Dispenser blir delt oppi to deler der toppen er beholder til kaffe eller andre påfylling vare. På under siden ligger det to roterende tannhjul der en av dem koblet til stepmotor sånn blir styrt av arduino, tannhjul som er koblet til stepmotor skal styre andre tannhjul som er til porsjon måler der hvert av rutene inni tannhjul har en volum like mye som halv teskje.

 

 

(31.10.2017)

Mechanical engineering work progress (2):

After cutting the individual parts of the dispensers and putting them together, we started planning how the main body of the machine would look like. We tried to combine ideas from the initial drawings made individually by all team members, and conceived a rough sketch of how the machine would look like.

We started at the top where the dispensers will sit.

From there we went on by designing the rest of the machine, and made various small changes in the process. We are trying to avoid sharp corners as much as we can in the design. That is not the easiest task if we take in consideration the materials we are using.

One of the challenges encountered when drawing a 3-dimensional assembly that needs to be composed of “2D” (excluding thickness) elements are the round parts/edges, and to make it correctly so it fits properly. But not dealing with that would result in a square box with no special design.

The amount and size of all the electric components, and mechanisms that need to fit inside the machine is quite big, which resulted in a voluptuous machine. To make it more appealing design wise the dispensers suffered a considerable change in size, without affecting the main purpose of the machine and its intended functions. In mounting the parts together of the machine body, we had to use some pieces of 2×2 wood and screws which served as a kind of improved chassis and turned the structure sturdier.

We will continue to design now a grid for the bottom of the machine and a part that can help deliver the different powders to the cup as well as a solution for creating a water dispenser that doesn´t leak.

(07.11.2017)

Mechanical engineering work progress (3):

This week we accomplished the design and production of the smaller powder dispensers, the bottom grid of the machine and the part that will help deliver the powder to the cup.

We also managed to assemble the mechanism of the 3 dispensers. To fasten the small step engines in wood pins was a bit of a challenge. We had to use an activator, and super glue. The engine exerts a relatively high torque (Considering its size and mount properties) on the mounts, to ensure a snugged fit we added hot glue at the connections.

As a rotation pin for the dispenser wheel, we used a ø 5mm steel rod and fixed it also with super glue.

 

When we designed the part for powder distribution we didn´t knew how big the cup would be, so to make sure we had room, we used an angle of 13 degrees on the part, so we could end up with at least 16cm clearance.

After the part was cut and assembled, we ran a simple test by pouring coffee on it. The test showed us that the inclination on the part was not sufficient to overcome friction between the powder and the Plexiglas surface of the part. Since we now know that the cup is no bigger than 11cm, we can now redesign the part and increase the angle by 12 degrees.

 

(14.11.2017)

Mechanical engineering work progress (4):

The machine is starting to get some shape now.

Almost all the electronic components are fitted inside and the question about the operating buttons came up.

We had initially agreed that we could just drill the holes as the assembly of the machine went, but since none of the buttons or lights we are using have frames to disguise the cuts, we optioned by drawing a new part with the holes on it. Since the part had to be cut anyway, the team thought it would be nice to be able to see through the machine, and we decided to make the side wall in Plexiglas.

We also agreed on having numeration on the different holes to indicate function.

 

 

(21.11.2017)

Mechanical Engineering work progress (5):

We have now cut the side wall in plexi-glass and fitted all the led lights and buttons on it.

Since this part is connected with several wires, we decided to set it in a way that could facilitate assembly and extraction. For that purpose, we added magnets on the corners of the part, and metal hooks on the interior of the machine.

 

 

Gruppe 10 – Brusdispenser

Gruppe 10

På grunn av endring i fag var det tilfeldigvis to stykker som enda ikke hadde fått tak i gruppe. De to ble da gruppe 10. Vi er:

Justin Joseph Endrerud (Maskin)

Mohammad Mirlashari(Elektro)

 

Oppgaven

I løpet av dette kurset skal vi klare å lage en prototype av et semi autonomt produkt av eget valg.
Mtp. at vi kun var to stykker var den største utfordringen å lage en oppgave som verken var for komplisert eller for enkelt for oss å fullføre.

Det tok derimot ikke lang tid før vi havnet på produktet vi ville jobbe med. Vi hadde en liten idemyldring hvor vi bestemte oss for å lage et produkt som alle kunne ha bruk for.
Hva kunne vi tenkt oss å ha i hjemmet vårt? Er det noe vi føler vi sårt mangler? Er det noe vi gjerne skulle hatt for moroskyld?

Første ide var en automatisk suppe/saus- rører. Den skulle kunne settes på kanten av kjelen, “kjøre” langs kanten med en arm som rørte. På grunn av visse utfordringer og interesse ble dette forkastet. Dermed valgte vi å gå på youtube, kanskje det finnes ideer som er verdt å utvikle eller faktisk lage?

Etter litt om og men og flere videoer kom vi frem til prosjektet vårt. Brusdispenser!

 

Funksjoner og startfase

Startfasen føler vi er den vanskelige fasen. Hvor langt kan vi dra dette uten at vi gaper over for mye? Hvor mange muligheter har vi? Forsåvidt uendelig. Ideene vi kom med i utgangspunktet passer best til å kjøres rett inn i produksjon og markedet. Pga. dette må vi prøve å forenkle så mye som mulig, men samtidig få med så mange funksjoner som overhodet mulig.

Først og fremst ville vi gjerne ha tre kammere som kunne inneholde 0.5-1.5L forskjellig type væske/drikke, men pga størrelse måtte vi kutte ned til et kammer som inneholder nok væske til å vise funksjonen. Andre ideer vi gjerne vil implementere er en form for trykkskjerm, fjernkontroll, stemmefunksjon e.l. Mulig en sensor som kan merke om det står et glass der og evt. sette i gang noen funksjoner. Dette er noe vi mest sannsynlig ikke vil rekke å implementere, men som vi har en ide og fremgangsmåte om hvordan.

Neste steg nå er å bestemme design som kreves for å vise en tanke om hvordan dette kan se ut, samt bestemme oss for hvor mange funksjoner vi vil klare å få inn i systemet.

 


 

Oppdatering:

Design:

Det er alltids en utfordring å komme frem til et endelig design tidlig i en prosess. For å komme frem til det er man avhengig av noen faktorer:

– Hvor mange kamre skal vi ha?
– Hvor mye væske skal de inneholde?
– Hvilke komponenter og hvor mange skal vi ha?
– Tåler alle komponenter vann, eller er vi avhengig av å skille det fra resten?
– Skal vi ha sensorer? Evt. hva slags og hvor må de være plassert?

Dette er bare noen punkter. Til nå har vi ihvertfall kommet frem til en utvendig størrelse på 30x30x30 cm. Innvendig blir det mest sannsynlig delt inn i to. En del med kamre og en del med komponenter. Vannpumpa skal foreløpig ligge under kammeret med innsuget inn i bunnen. Hvor i dispenseren kammeret og komponentene skal være er foreløpig usikkert ettersom vi må vite hvor mye ledninger som vil komme fra skjermen.

Vi har bestemt oss for å gå for plexiglass for de store platene og plastikk (hovedsaklig 3D-printing) for mindre deler. Ettersom dette er en gjenstand som skal stå i ro på en benk krever det ikke spesielt for styrker i materialet.

Målet for neste innlegg er å ha mulighet til å skjære ut deler og begynne å sette sammen dispenseren. Ihvertfall ytterveggeene.

 

Programmering og komponenter:

Til nå har vi valgt å kjøre pumpe vha. tid for å beregne mengde væske som skal komme ut i glasset. Det har forsåvidt funket, men vi har også forstått at det er en mindre god løsning. Derfor er vi i vurdering av flere løsninger nå. En av dem er å bruke vekt på kammeret og beregne via den hvor mye væske som havner i glasset. Ulempen her er tetthet og vekt av forskjellige typer væske. Differansen vil bli minimalt ved så lite væske, men det er fortsatt en differanse. Vi må gjøre noen målinger og tester for å komme frem til om det kan være godkjent metode eller ikke.

Om tiden strekker til så vurderer vi å implementere kjøling, men dette blir noe av det siste vi gjør, selv om det vil være en del av produktet om det skulle ut i markedet. Dette er bare en ide foreløpig.

Vi har også kommet frem til av vi vil legge inn en touchskjerm i dispenseren vår. Selv om funksjon er viktigst for oss, er også brukervennlighet og utseende to viktige faktorer. Ved å ha en touchskjerm istedenfor tre “mindre pene” knapper, vil brukervennligheten økes betraktelig, samtidig som den vil bli utseendemessig, mer fristende.

Når det kommer til sensorer har vi foreløpig bestemt oss for en vektsensor (som tidligere nevnt) og vi vil prøve å implementere sensorer som kan “måle” glassets størrelse slik at dispenseren automatisk kan helle oppi mengden væske som glasset kan inneholde. Dette er noe vi må vurdere litt mtp at det kan være to kamre med to forskjellige væsker. En er uansett avhengig av å trykke på skjermen. Da er det unødvendig pengebruk på snesorer som måler glasset. Eller er det?

Generell (idemyldring):

I starten snakket vi om tre kamre i dispenseren, det blir for mye. Ihvertfall for denne versjonen. I hovedsak går vi for et kammer, det er mulig vi går opp til to hvis vi føler det er nødvendig.
Vi har nemlig kommet frem til noe “lurt”. Om dette skal ut i markedet må det kunne passe til en stor familie med flere barn like godt som til en enslig person i en hybel. Prototypen vi lager nå vil kunne passe denne enslige personen eller et samboerpar. Hva kan være løsningen? Forskjellige modeller! Vi kan si at denne prototypen med 1-2 kamre er den minste versonen. Neste modell kan være på tre kamre. Der har vi f.eks. muligheten til å ha et mindre kammer for saft? Kanskje i en enda større modell skal man kunne koble den til ei vannkran?
Mulighetene er uendelig, vi må bare huske at dette skal kunne stå på en kjøkkenbenk i en bolig/leilighet, og spesielt størrelse må holdes til en minimal.

Medisch wangedrag (Group 7H17)

Hei!

We are medisch wangedrag. We are a group of five students of computer science, electrical engineering and mechanical engineering. In according to the course Smart Systems, we are making a medical device. This device can detect the blood veins and mark the right spot on the skin on the arm. This is useful to take a bloodsample. The goal of this device is to give the patients a quicker treatment and to reduce the hospital costs. It is also more precise than the todays traditional practice.

 

Vebjorn Tunold – Computer Science

Robina Erichsen – Electrical Engineering

Henrik Gjestvang – Computer Science

Pleun Zomer – Mechanical Engineering

Martin Larsen – Electrical Engineering

Group 6 Update on lidars

its been a while since last post and this is what we have done and what we are going to do.  Early in the process we aquired the xv11 360 lidar. witch is a laser sensor device. What this device does is that it spinns in a circle and sends out lasers to meassure distance from nearest object. (picture below)

As you can see on the picture it has a little motor intigrated on the left. This means that we need to power both the lidar and the motor in order to get it to work. we plan to use this if we can get it to work. in case this dosent work we’re planning to experiment with the CJVL53 lidar witch is a simpler version of the lidar system. it functions similar but as shown below in a straight line instead of in a 360 degree angle

So continuing the project mechanical will look at designing parts for the car using lasercutting and modeling on the computer and computer and electrical will look at connecting the different electrical components

Smart Mirror: Software update 1:

All work done on the software side is accessible on https://github.com/erlendhel/smartmirror/, where the master branch is a snapshot of the latest release, while the develop branch is up to date with the latest changes.

Summarized, the software for our smart mirror will of the first release has the following functionalities: live news, an indicator of travel time and live weather. These functionalities are to be presented in a graphical user interface. The software is intended to run on a Raspberry Pi 3 which is cast to a tablet (Currently of the type: UTOO Pad). This is currently done by establishing an SSH connection between the Pi and the UTOO Pad, further, a VNC client is used to share the desktop from the Pi to the screen of the tablet.

NewsAPI

The current concept is that a user of the smart mirror can have three favorite news sources. For these three news sources, the user can access live articles. To facilitate the presentation of live news in our smart mirror, we decided to use the NewsAPI (https://newsapi.org/). NewsAPI is a free API with more than 70 sources for news from across the world.

In order to minimize the number of external calls to the API, we decided to make a class dedicated to this behavior. The raw response from the API is stripped of redundant data and then stored locally. Further, the locally stored data is used in a wrapper class which supports easy usage between our two software students.

Google Maps API

To be able to provide a user of the smart mirror with travel times from his/her current location to another, we have made use of the Google Maps APIs (https://developers.google.com/maps/). To get a current location for a user, we’re using an IP-tracing service provided by http://freegeoip.net. We are at the time of writing experiencing some difficulties getting the positional data for the local IP. This results in weird positions of the origin and is something we are working on solving. Because of this, the travel time feature is currently only a proof of concept.

In terms of our usage of the API, we decided to go through with it in a similar fashion as we did the NewsAPI. After getting the responses needed from the Google Maps API (Places and Distance Matrix), a tailored response is created which is stripped of unnecessary data. This response is then used within our application.

Weather API

One of the ideas for the smart mirror is that the user should have quick access to frequently asked data. One of the features to support this idea is to bring the weather data to the user of the mirror.  We use the Weather API from https://openweathermap.org/api to achieve this feature.  To make it easier to use the data requested from the API, we have made a wrapper which strips redundant data and organizes the relevant data into different data structures. The user of this weather interface can request both current weather data, a daily forecast and a weekly forecast. The wrapper is currently hard coded to only serve weather data for Kongsberg as this is the only place we will use the mirror in this project, but can easily be expanded to contain several cities, or even look up the users IP address to get a geo location.

GUI

The graphical user interface (GUI) is divided into different screens. The screen at startup will contain all the different modules our smart mirror contains. As of now, this includes the navigation, weather and news modules. In addition to a clock- and date-label, the main screen also contains a settings button which is intended to let the user set his preferences, e.g. his/hers preferred news sources.

Navigation module

Currently, the navigation module will just show the time it takes to drive to Krona, but this is intended to be further expanded by letting the user choose ‘travelmode’ and destinations.

Weather module

The weather module on the main screen contains the current temperature as well as an icon corresponding to the weather description, e.g. ‘cloudy’. By touching/clicking the weather module of the main screen, the user is taken to the weather screen. This screen will contain more in-depth detail about the weather. This screen is divided into three parts. The first part shows more data about the current weather. The second part shows a daily forecast with 3 hours intervals. The third part shows a weekly forecast.

News module

The main screen will contain the chosen three preferred news for the user. By clicking/touching one of these source logos, the user will be taken to a source screen. This screen will contain ten titles (some of which may be cut because of limited screen size) from the clicked source. These titles are again linked to the description of the news article, which will be displayed to the user when a title is clicked/touched.

First working version of the GUI