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[Paparazzi-devel] Voltage bias in battery level

From: Austin Jensen
Subject: [Paparazzi-devel] Voltage bias in battery level
Date: Wed, 7 Apr 2010 14:09:08 -0600


I just recently noticed that the battery levels read from the Paparazzi board are changing from board to board (TWOG) on the exact same aircraft with the same fully charged batteries. Is there a variable I can add to the airframe file to compensate for this? I have looked myself without any luck. If not, would a good place to put one be in the main_fbw.c file line  203?

#ifdef ADC
  if (!_10Hz)
    fbw_vsupply_decivolt = VoltageOfAdc((10*(vsupply_adc_buf.sum/vsupply_adc_buf.av_nb_sample)));

Austin Jensen, Research Engineer
Utah Water Research Laboratory (UWRL)
Utah State University, 8200 Old Main Hill
Logan, UT, 84322-8200, USA
E: address@hidden
T: (435)797-3315

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