Ravi,
Your design stands out in the crowd.
Nice to have you here...
Keep up the good work :)
Winning is everyone desire..
But winning is not everything...
is how you matured towards it, that counts...
The winning design was submitted after the end of the contest "6 hours after the end"
or are sweet line called? it's anything you really done everything to discourage good designers .....
we can tap power and communication from the headphone jack:
http://arstechnica.com/apple/2011/01/project-hijack-uses-iphone-audio-jack-to-make-cheap-sensors/
the earphone will not stay in place, it will only be used when taking the temperature.
almost all the designs submitted have some sort of LCD display, i will not need a display on any of these.
Another thought is how can the smart phone be the display unless you have a mini usb connection going to it with a corresponding smart phone app to translate the data? The headphone out can only transmit audio to the speaker.
So is this supposed to be a headphone that can actually stay in place like earbuds or does it have to physically be held up to the ear? It dont make any sense to be an earphone if it is only going to be used when taking temperature or inspecting ear?
Using the right impedance matching, one can harvest power out of the audio-jack.
the HiJack project-illustrates data and power transfer through the jack (http://arstechnica.com/apple/2011/01/project-hijack-uses-iphone-audio-jack-to-make-cheap-sensors/)
1. I checked prices ~ Intel Bluetooth Modules 6,5 € at Mouser catalog http://eu.mouser.com/ProductDetail/Intel/PBA31308V202-S-LJYU/?qs=sGAEpiMZZMsGelYiB%252bjhZpS9PJgNT5YFsCHlUL5fw30QRa38VGf1iA%3d%3d
2. but the battery still need to use - for temperature sensor, LED's and data transfer to smart phone ...
bluetooth or wi-fi would be great, but then we need batteries. Also, the cost is a critical factor here, and the wireless portion is more expensive. Good suggestion though.
Zulfadzryl
Designer