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path: root/src/drivers/meas_airspeed/meas_airspeed.cpp
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-rw-r--r--src/drivers/meas_airspeed/meas_airspeed.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/drivers/meas_airspeed/meas_airspeed.cpp b/src/drivers/meas_airspeed/meas_airspeed.cpp
index 58b128948..1ad383ee0 100644
--- a/src/drivers/meas_airspeed/meas_airspeed.cpp
+++ b/src/drivers/meas_airspeed/meas_airspeed.cpp
@@ -258,6 +258,12 @@ MEASAirspeed::collect()
report.temperature = temperature;
report.differential_pressure_pa = diff_press_pa;
report.differential_pressure_filtered_pa = _filter.apply(diff_press_pa);
+
+ /* the dynamics of the filter can make it overshoot into the negative range */
+ if (report.differential_pressure_filtered_pa < 0.0f) {
+ report.differential_pressure_filtered_pa = _filter.reset(diff_press_pa);
+ }
+
report.differential_pressure_raw_pa = diff_press_pa_raw;
report.voltage = 0;
report.max_differential_pressure_pa = _max_differential_pressure_pa;