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JRproducts (November 30, 1999 at 12:00 am)
Logitech has something like this. I think it is called the MX air, but at $150 I would just buy a regular mouse. :)
rtacamericas (November 30, 1999 at 12:00 am)
the board was developed for demo purposes. It has LEDs and a debugging interface... just for fun, not a final product
Maticus2009 (November 30, 1999 at 12:00 am)
I want to buy a mouse like this!Somebody has to make one first..
max225592 (November 30, 1999 at 12:00 am)
How do you get position..?can you explain in detail because we tried double integration but drift errors too high to get reasonable accuracy..?
albbonomi (November 30, 1999 at 12:00 am)
A double integration of the acceleration is not sufficient to detect position if you are not measuring or controlling the orientation of your sensor. Your "mouse" would detect a change in position even if it's not moving just changing the orientation. PS. What does the board so big?
rtacamericas (November 30, 1999 at 12:00 am)
that is correct ! but this mouse can be used "in the air" since its based on acceleration not on a reflexion
rtacamericas (November 30, 1999 at 12:00 am)
Freescale actually has a couple of options to do this...The accelerometer can deliver an analog signal that gets read in an Analog To Digital module incorporated in the Microcontroller. The S08QG Microcontroller does this.. (this is the way the demo was done)A second option is to use a FSL accelerometer that deliver the acceleration in a digital way. so you dont need the ADC in the MCU.
wasssup1990 (November 30, 1999 at 12:00 am)
It's called an ADC (Analogue to Digital Converter). They can be integrated into PIC's and other micro controllers. Look up ADC on Wiki.
Pharts (November 30, 1999 at 12:00 am)
you know...you could just go buy a mouse.
Prowler1 (November 30, 1999 at 12:00 am)
looks like a really viable option for next gen mouse controllers, i wonder if any company should same interest? |
