1. Team Age Pregnancy iwallet Team Members: Matt Russell, James Brown, Alex Croucher, Dan Coates, Keith Johnson, Ben Moyse, Dom Weerdmeester, Josh Harrison, Tim Davies, Nick Severinho, Dale, Sam

2. Introduction It was our task to design and build a product that best displays at least 500 photos. The three key factors we had to consider were: Key Features Style Cost

3. The Solution… We decided that we wanted to create an innovative product to display the photos as there are already many products on the market. The best way to achieve this was to integrate a digital photo frame into another product. The inspiration for this idea came from a digital photo key ring. After considering other products, the ideal solution for us was to place a digital photo frame into a wallet.

4. Why a Wallet? T oday's society is always on the move, so to capitalise on this we wanted to choose a product that is portable. Many people already have printed photos in there wallets, therefore it is an idea people are already used to. It’s ideal for someone who is away from home a lot, i.e. soldiers or someone who is travelling the world and would want to carry multiple images of loved ones. After conducting a questionnaire asking the question would you buy a digital photo frame that fits in your wallet? 39 out of 50 said yes, which suggest it is a sellable product.

5. Product Design & Requirements 1. Product Size must fit inside a conventional wallet – no larger than 85.60mm × 53.98mm. 2. Must be portable and run off a battery - 3.3V Nokia Phone battery. 3. Be able to store 500 photos on a removable SD card – assuming each photo is 1-2mb, need a 1gb card. 4. Resilient and hard-wearing – must be able to withstand up to 1896 PSI. 5. Have clear resolution and colour screen to display photos -128x128 pixel screen and 12 bit colour. 6. Long lasting battery life - 10 hours (Display Time)

6. Product Design & Requirements Continued… 7. Easy interface with PC for easy transfer of photos via USB 2.0 using drag and drop methods. 8. Rechargeable via 230V mains supply and USB 2.0 connection to PC. 9. Be able to display digital images of different file formats onto a colour screen - Jpegs,BitMaps, GIF. 10. Must scroll through photos displaying them for a default setting of 2 seconds each - this can be changed by the user. 11. Must be lightweight - no heavier than 50g. 12. Must be able to deal with temperatures from -10 degrees C up to 50 degrees C. 13. Have an automatic turn on/off feature when the wallet has been opened/closed.

7. Use Case Scenario 1 Case 1: Displaying photos of sentiment. Many people have pictures of their loved ones in their wallets. The problem with this is that maybe only one or two photos can be stored. With the iWallet hundreds of the user’s photos can stored and displayed easily. The photos would be in a slideshow format, meaning the photos will change after a set time chosen by the user. All photos will be displayed in the wallet one after another so all photos can be shown.

8. Use Case Scenario 2 Case 2: As our product uses a MicroSD card to store the photos, the iWallet can be used to easily transfer photos from another device such as a mobile phone or digital camera. This transfer process would be quick and easy as it uses a straight forward drag and drop approach, keeping it very easy for every user. Also if you have filled your memory on your mobile phone or digital camera you could simply transfer your photos across to your wallet and be able to free space on the other devices. This would come in handy if you had recently attended an event. If the user has recently gone to a football match and has taken lots of photos then he can easily upload them to the iWallet using the drag and drop nature of the SD card. When the user is out with his friends he can easily just open his wallet and show them the photos from the recent football match. This can apply to any event being a holiday, party, bbq, cricket match and the list can goes on. Just drag and drop the photos of the event and show your friends the next day.

9. Use Case Scenario 3 Case 3: The iWallet is small, lightweight and portable so therefore conventional for the average man as most men only carry their wallets, phone and keys when they go out. This means the iWallet would be a great way of showing your friends your recent photos without having to take out another device to show them. The product is not bulky so will not take up too much space in the user’s pocket, and will work as a regular wallet being able to hold everything a normal wallet can hold, meaning it is very practical.

10. Design Specification The photo frame itself will run off a PIC Microcontroller that is interfaced with an LCD colour screen. The images will be stored in the root directory of a Micro SD Card. The PIC will then read the SD card and display the images on the 128x128 pixel screen. This will be 12 bit colour.

11. Design Specification continued... As size is a limiting factor in our product we will be using a MicroSD card to store the images as it is small at 15 mm × 11 mm × 1 mm ("SparkFunElectronics", 2010). It will be placed in a MicroSD card holder. We will also use a LED to indicate the microSD read activity.SparkFunElectronics A 3.3 volt supply, provided by an LD1117S33, powers the PIC, MicroSD card, LCD logic, and LCD display. The LCD backlight requires a separate 7 volt supply and is powered by an LM317 adjustable regulator configured to 7 volts with 240 and 1100 ohm resistors.

12. The iwallet Concept Drawings.

14. Conclusion Our design took into the three key factors; key features, style and cost. The iWallets integrated digital photo frame in a wallet and easy to operate photo uploading ability demonstrates the style of this product. The prototype is a PIC with a simple circuit and all components are reasonably cheap making it cost effective. Investigating into three use case scenarios showed us that our products features met these requirements. The iWallets ability to display many photos of sentiment in an interesting and unusual way is its key selling point.

15. Conclusion cont… The second case shows the iWallets easy to use capabilities. It can easily be used with other devices and its simple drag and drop photo uploading means that even people with only minimal knowledge of computers can use the product. The last case shows the iWallet is an extremely practical device. Its size and practicality suits its intended target market very well and importantly it does not remove the primary purpose of a wallet away either.

16. The iWallet! Thank You For Listening! Any Questions?

17. References http://www.geekalerts.com/u/digikey.jpg http://gb.mouser.com/Search/ProductDetail.aspx?qs=V/yyTCAHA4D/h5r3CRQDtA== http://gb.mouser.com/Search/ProductDetail.aspx?qs=V/yyTCAHA4D/h5r3CRQDtA http://www.sparkfun.com/commerce/product_info.php?products_id=569 http://www.sparkfun.com/commerce/product_info.php?products_id=127 http://www.legitreviews.com/images/reviews/548/kingston_1gb_microsd_1.jpg