AnsweredAssumed Answered

MPR121 disable baseline filtering ?!

Question asked by Felix Over on May 18, 2015
Latest reply on May 27, 2015 by Jose Alberto Reyes Morales

Hello,

 

in my scenario i want to use the MPR121 for LONG time touch/body detection. The Problem is that the baseline-filter decreases my baseline-value an after a few minutes and the body will not be detected anymore. My Thresholds are 10 for touch and 5 for release so when the filter decreases the value for 4 (is this configurable ? its always 4 even if i change NHDL and NHDT) the baseline - filtered value is not < threshold anymore

 

The solution to set the NCL and FDL both to 0xFF only create a delay but will not solve the problem.

 

Is it possible to deactivate the filter ?  Or set the value which decreases the baseline to zero ?

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