Airspeed sensor readings all over the place

Hello

Just got a MS5525DSO airspeed sensor to use it with a holybro pixhawk v6x. The pixhawk is on px4 version 1.15.1. These are the readings I get from the sensor for a stationary device with absolutely no wind (indoors). Blowing into the tube or covering it with my finger doesn’t affect the readings.

SENS_EN_M5525DS is set to enabled. Calibration either fails due to “Negative pressure”, or it succeeds before I blow into the tube because the sensor believes it received a large enough wind intake (either displays a reading of 100 something or -100 something).

I’ve tried connecting both static and dynamic ports, also tried dynamic port on its own, switched the ports to which the tube connects on the sensor. Basically, all connection combinations have been tried. The sensor is connected to an I2C port on the device.

Am I doing something wrong? or is this simply a faulty sensor?

@virtual_tours Hi, I think it is a known issue.

Fixed by this PR

1 Like

Thanks, that was it. Installing the main branch fixed it.

1 Like