Little disappointment with MMA7455L
Rayman
Posts: 14,876
Finally decided to test out the PSB accelerometer...· Was going to cheat and use the code from Parallax's module, but then found that they are using the SPI interface, whereas I'm using I2C...
Anyway, here's my problem:· I was sold on the 10-bit interface and user selectable range, my personal range of interest of +/- 2G being one of them.
But, once you read the fine print, you find that 2G range is only available as an 8-bit output.· The 10-bit output is fixed to the +/- 8G range [noparse]:([/noparse]
It may be too late for me to change though...· This thing works and was very easy to get going, only took me about 10 minutes to figure out how to get a reading...
Think I'll look to see if there's any pin compatible versions with higher resolution in a 2G range though...
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My Prop Info&Apps: ·http://www.rayslogic.com/propeller/propeller.htm
Post Edited (Rayman) : 12/5/2009 9:53:05 PM GMT
Anyway, here's my problem:· I was sold on the 10-bit interface and user selectable range, my personal range of interest of +/- 2G being one of them.
But, once you read the fine print, you find that 2G range is only available as an 8-bit output.· The 10-bit output is fixed to the +/- 8G range [noparse]:([/noparse]
It may be too late for me to change though...· This thing works and was very easy to get going, only took me about 10 minutes to figure out how to get a reading...
Think I'll look to see if there's any pin compatible versions with higher resolution in a 2G range though...
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
My Prop Info&Apps: ·http://www.rayslogic.com/propeller/propeller.htm
Post Edited (Rayman) : 12/5/2009 9:53:05 PM GMT