Gabriel Ambuehl wrote:
On Wednesday 24 January 2007 12:33, Sean Moss-Pultz wrote:
On 1/24/07 11:41 AM, "kkr" <[EMAIL PROTECTED]> wrote:
Does anybody know more about price and precision of the accelerometers's
chips on the market now?
About US$3.
Are they good enough to twice integrate the acceleration data (which obviously
puts quite some demand onto accuracy) to get a better estimate of where a car
would be after entering a tunnel? If so, there's your killer app.
I have a device that uses an accelerometer to measure 0-60 times, and
quarter mile times in the car. You find a deserted piece of road, stick
the thing to the windshield and get it level, then go. It senses when
you have reached the quarter mile, or you've reached 60 mph and notes
the time. Much cheaper than a drag strip, good for people who hot rod
their cars and want to measure the difference in performance. With the
openmoko phone you could add a data logging feature to gather G force
data throughout a drag strip or autocross run, in addition to
calculating the time.
Another use would be as a game controller, either with a game in the
phone, or transmitting the motion data over bluetooth to use with a PC
game. It would be ideal to have a 3 axis accelerometer and a 3 axis
tilt sensor like the wii. Apparently the wii controller uses an IR
sensor to keep itself oriented relative to the game console; since the
phone doesn't have IR this wouldn't be possible. But then again it
doesn't have accelerometers either at this point.
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