lördag 24 oktober 2015

Presentation feedback

Post presentation feedback

  • More variety of interactive sounds
  • Redesigning the size of the toy for better electronic housing
  • More interactions 


More variety of interactive sounds: 

Since first installing sounds on the SD card we have increased the number of prerecorded tracks.
Previously there where only six sounds that the toy could produce, since then we have increased the number of these tracks to twenty. This is directly due to the feedback that was giving during our presentation. It was made clear to us that the lack of sounds would result in a reduced/deficient interaction between toy and child. It would seem that in order to produce a increased number of sound with limited physical interactions available a randomised pattern is necessary. As a result the toy now plays ten tracks when toys/children are interacting with one another. As well as ten tracks when the child interacts with the toy alone. 


Redesigning the size of the toy for better electronic housing: 

After discussing with lecturer and examiner it was decided that better/ more efficient electronic housing within the toy would produce better sound. As a result we as a group have increased the size of the primary toy allowing for better/ more efficient housing of electronics within thusly producing better sound and quality. During the same discussion it was raised that we where producing a plush toy and previous prototype had an excessively solid body. This would negatively impact on the interaction as well not being a soft plush toy. We have since surrounded the housing with stuffing both increasing the size of the product and also the softness of the toy. 

More interactions:

It was suggested during the presentation that we should use more interactions whether this be, sounds or physical triggers such as buttons, rfids etc. 
For more interactions this would require a change in electronics and programming. In this circumstance we believed that simply increasing the number of sounds and also randomising them could yield the same result as a change in physical triggers. 

fredag 9 oktober 2015

Sound as communication

During the age of 1 and 2 kids are in their active development. They  become more independent and always try to explore. However they are still more "selfish" and do prefer play alone rather then with another kids.

In order to make little push and try to make kids play together we were inspired to make a Interactive Talkative toy that suggest to play kids together.

If each kid has one of our toys and by placing them together, toys start to talk- by making happy sounds and saying simple words.

 Simple words that will be recorded and implemented in our Toy-prototype.

Examples:

"Hey, Come play with me."
"Let's find some friends."
"Let me give you a hug."
"Let's be friends forever.

 


torsdag 8 oktober 2015


CAD Modeling





Firstly by gathering the specs/dimensions of the Arduino chip I could form a simple representation of the boards layout. From this it was possible to create a profile sketch followed by offsetting the entities to allow for the thickness of the extruded piece.



Next was figuring out how to attach the Arduino boards to the supporting rigs... how, well it is still uncertain but one method would be to create pins to lock the piece in place.




tisdag 6 oktober 2015

Communication between components


  • Issues with connecting hardware. Pins, resistors. Initial hardware connections between components were separate, however we began to connect the interactions between RFID and analogue sound. This proved easy to physically connect the components yet the Coding was a completely different story all together. taking 4 hours to resolve a simple circuit.

  • Connecting the battery , blow up RFID and resistors We knew that we would eventually need to attach a external power supply to the Arduino separate from the PC. Also we knew that the Arduino could handle above 9V however we neglected at the time to consider the other components. As a direct result of attaching a 9V DC battery to bread board we burnt out several components... Rookie error. Later consultation with our good friend Google, confirmed our suspicions that we had indeed maliciously murdered our RFID chip... (only capable of handling at max 3.3V)   
  • wav file on SD card converted/formated for speaker In order to produce a out put (sound) through the speaker, a recording was made on Aleksandra's Mac book. This was then converted to suit the pre-requisites of the Arduino coding. Also the SD card had to be formatted to suit the SD card reader within our circuit. It was still a working progress as issues continued to cause troubleshooting errors. In order to resolve the issue we will use a PC to format both SD and Wav. files. 

  • Test Arduino code-feedback loop playing by it self .  We couldn't understand and find an issue why code feedback were looping(reaping) all the time. We checked code and cables and theoretically it suppost to work.  By exploring more closely cables and reconnecting them we fount out that one cable were broken. We also burned one resistor while we were powering up Arduino with 9V battery; we isolated each circuit and we reconnected proper way reversed resistor.
  • Trying to assign analog inputs with a button In order to understand and produce two separate analogue inputs an Arduino code and physical button were required. First isolating a separate circuit, we could control the sound produced by a pushing the assigned button. First we had assigned the Arduino analogue output "A5" to to play sound "1" once we had tested this, we then placed the Arduino output "A4" to play sound "2". after successfully preforming this diagnostic the team was satisfied with the circuit and moved on to the next issues.
  • Resolving Issues In attempting to resolve issues the team was able to gain a deeper knowledge of both Arduino and electronics and coding. 
          By this point the team PLUSHPLUSHPLUSH... has been able to successfully connect the                   sound to analogue inputs when separate RFID cards are detected, resulting in various melodies           to play.





Post by Aleksandra and Justin.

First diedline


By the first deadline groups were expected to have tested and produced working circuitry, Arduino codes were to be tested with each assigned component. As the image below displays, we had to test the functionality of a Accelerometer, RFID and speaker. Initial testing of components revealed that there was an issue with the connection with the RFID to Arduino. The code was working as we had pulled it from a stored library, and all the pinned connections were checked a MILLION! times. 

It was after a significant while that we concluded it was the connection between Breadboard, pinned connectors and the chip itself. As a result team members used left over pins to wedge the chip against the breadboard allowing for the completing of the circuit.

During the presentation it was evident that we had been able to produce a working RFID, accelerometer and produce sound from a speaker. The group had also been able to assign names to different passive cards. e.g Craig and Eric associated with the RFID.


It is important to note that whilst we intended to have the sound library set up to o,it was not possible due to the lack of a SD converter. However after receiving the necessary component we were able to demonstrate this part by the next deadline.

Posted by Aleksandra and Justin.