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MPR121 disable baseline filtering ?!

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



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 ?