MEMS Acceleration Sensor: Difference between revisions

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*  Cheap and easy to source: Wii Nunchuck - 3 axis, interface: i²c (also works on cheap replacement nunchucks)
*  Cheap and easy to source: Wii Nunchuck - 3 axis, interface: i²c (also works on cheap replacement nunchucks)
*  Convenient: Sparkfun ADXL335 breakout board - 3 analog voltage outputs, 3 axis.
*  Convenient: Sparkfun ADXL335 breakout board - 3 analog voltage outputs, 3 axis.
*  MMA7455 I2C/SPI, tested successfully on Arduino, 3 axis
*  MMA7455 SPI/I²C, 3 axis, [http://www.parallax.com/Portals/0/Downloads/docs/prod/sens/28526-MMA7455-3axisAccel-v1.1.pdf Datasheet][http://blogs.iad.zhdk.ch/embodied-interaction-basics-hs11/mma-7455-beschleunigungssensor/ Tutorial (German)], [http://code.google.com/p/mma-7455-arduino-library/ Arduino library]
*  ADXL345, I2C/SPI, tested successfully on Arduino, [[http://www.analog.com/static/imported-files/data_sheets/ADXL345.pdf]]
*  ADXL345, SPI/I²C, [http://www.analog.com/static/imported-files/data_sheets/ADXL345.pdf Datasheet]


== please leave code exmples here ==
== please leave code exmples here ==

Latest revision as of 15:08, 4 May 2012

Accelerometers

important criteria:

  • Interface (simplicity, speed)
  • maximum acceleration (or desired range) - usually given in factors of earth's gravitation. (3g means 3 * 10m/s²)
  • resolution vs. range (bit depth): increased max. range usually is traded against lower resolution.
  • noise (the less the better)
  • measurement rate (the higher the better)


Examples

  • Cheap and easy to source: Wii Nunchuck - 3 axis, interface: i²c (also works on cheap replacement nunchucks)
  • Convenient: Sparkfun ADXL335 breakout board - 3 analog voltage outputs, 3 axis.
  • MMA7455 SPI/I²C, 3 axis, DatasheetTutorial (German), Arduino library
  • ADXL345, SPI/I²C, Datasheet

please leave code exmples here

void foobar () {}