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Need help to decide that which one is better sensor? dual or tri axis Accelerometer? — Parallax Forums

Need help to decide that which one is better sensor? dual or tri axis Accelerometer?

ColdCold Posts: 8
edited 2012-08-13 06:56 in General Discussion
Hey buddies, i'm trying to make a project for my final year... and i'm confuse to decide that which sensor gives me better result?? dual axis or tri axis accelerometer...

Comments

  • ercoerco Posts: 20,259
    edited 2012-08-12 22:37
    How many axes do you need? What's your application?
  • ColdCold Posts: 8
    edited 2012-08-12 22:42
    i'm trying to make a device that can use for gaming purpose... look, actually a device like a helmet(portable device) and i want to use sensors(for motion) instead of mouse...
  • TubularTubular Posts: 4,706
    edited 2012-08-12 23:07
    Definitely go 3D for anything portable.

    2D is useful where the device is somewhat constrained in how you use it - working out which way is 'up' where there is a couple of expected orientations.

    Parallax have some neat little sensor boards, and forum members Rayman and Vanmunch have created DIP-8 modules with code - all are great options for getting you started...
  • ColdCold Posts: 8
    edited 2012-08-12 23:12
    Thank you, Tubular, this info will help me a lot... :smile:, if anyone has any other suggestions please post your replies... thanking you.... :smile:
  • CNLCNL Posts: 1
    edited 2012-08-12 23:17
    cold, If we use tri then no need of compass in our project??
  • ColdCold Posts: 8
    edited 2012-08-12 23:25
    @CNL, jou yar, pela badhu vanchva to de mane net par thi...
  • TubularTubular Posts: 4,706
    edited 2012-08-12 23:30
    Here's the parallax Compass
    http://www.parallax.com/Store/Sensors/CompassGPS/tabid/173/CategoryID/48/List/0/SortField/0/Level/a/ProductID/779/Default.aspx

    They have similar modules for Gyro and Accelerometer

    I don't think anyone has done a compass in DIP-8 format (or stackable DIP-8) yet...
  • ColdCold Posts: 8
    edited 2012-08-12 23:39
    To Tubular,

    Sir,
    i need little more help,
    i was thinking, for navigation(up-down, left-right and forward-backward process) in gaming, how many of total sensors i should use??

    Games like "Counter strike"(and etc) forward-backward could be done with joystick.... i only want to do is look left right and up down.... so any idea sir??
  • TubularTubular Posts: 4,706
    edited 2012-08-12 23:57
    If you're doing a helmut, to detect rotation (look left/right), and tilt up/down - I think start with a 3D gyro, like the one from Vanmunch, or this one
    http://learn.parallax.com/kickstart/27911
  • ColdCold Posts: 8
    edited 2012-08-13 00:05
    hmmm..... this looks more interesting Sir, after using this 3D gyro... i don't think any other sensors i have to use...!!! Is that true, or i have to use this 3D gyro with 3D accelerometer, both??
  • prof_brainoprof_braino Posts: 4,313
    edited 2012-08-13 06:56
    This guy uses gyro + accelerometer. This might be something to consider.

    http://www.geology.smu.edu/~dpa-www/robo/nbot/
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