if I want to communicate between ardunio and android, there are various way to do it. but the easiest two alternatives i see are,
use ADK shield (since its standard platform for this job ... and google...!)
use a Bluetooth module (since practically all android phone has Bluetooth)
I understand one is wired and another is wireless (and wireless in general has its own pros-cons). but aside that, is there any operational advantage of using ADK shield over Bluetooth?
I mean both uses serial communications. then why would i or anybody buy a $50 ADK board or $15 ADK shield if I can do the same thing with $1 Bluetooth module?
I have a mega adk. I do not own an android phone but have used it with a bluetooth dongle and a motor shield to control an rc tank track with a ps3 dual shock controller.
Where you have seen this price? Is it an usb dongle? If so, than you need an USB host shield for arduino, that's driving overall cost up. BT shield for arduino costs 20$ and up, same time the chiepest provide only low speed serial communication, and BT with audio RTime ( 1Mb/s or so ) costs >50$ on SFE. It's all depends on your requirements , speed + time to develop a project / against costs.
Where you have seen this price? Is it an usb dongle? If so, than you need an USB host shield for arduino, that's driving overall cost up. BT shield for arduino costs 20$ and up, same time the chiepest provide only low speed serial communication, and BT with audio RTime ( 1Mb/s or so ) costs >50$ on SFE. It's all depends on your requirements , speed + time to develop a project / against costs.
No. not usb dongle. i was talking about usb/serial module/shied. well... may be i under state the price a little may be not for a dollar... but certainly not 20! check this around 5 bucks or this one if you want solderless. (asuming android already has BT then nothing else needed) and my question was not about price... i just mention it to make a point. lets just forget about price. my question is whats the advantage on ADK shield? the speed? not necessarily BT 2.0 can put up 2/3 Mbps speed (check my second link)! which is way more then enough speed for any arduion application! all i'm trying to understand whats the big fuzz about google's ADK?
Thanks
I've never understood what the fuzz is either, but I'm certain that it can't be easier or cheaper than a $7 HC-05 bluetooth.
This to the point that, while I originally intended to get an ADK-something, I didn't get it because I didn't understand it. I'm now sure it would have been a mistake anyway, as a Mega+bluetooth does exactly what I want.
If you have any remaining doubts, you need to be specific about your needs, and check that an HC-05 cannot meet them.
may be not for a dollar... but certainly not 20!