diff options
| -rw-r--r-- | src/drivers/ets_airspeed/ets_airspeed.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/drivers/ets_airspeed/ets_airspeed.cpp b/src/drivers/ets_airspeed/ets_airspeed.cpp index 2e32ed334..de8028b0f 100644 --- a/src/drivers/ets_airspeed/ets_airspeed.cpp +++ b/src/drivers/ets_airspeed/ets_airspeed.cpp @@ -157,6 +157,14 @@ ETSAirspeed::collect() } uint16_t diff_pres_pa = val[1] << 8 | val[0]; + if (diff_pres_pa == 0) { + // a zero value means the pressure sensor cannot give us a + // value. We need to return, and not report a value or the + // caller could end up using this value as part of an + // average + log("zero value from sensor"); + return -1; + } if (diff_pres_pa < _diff_pres_offset + MIN_ACCURATE_DIFF_PRES_PA) { diff_pres_pa = 0; |