I am off to learn what the fuss is all about Air Speed Sensors, so I bought few analog ones (as I want to save my I2C), and connected to Pixhawk via ADC port.
As per Ardupilot documentation, Set ARSPD_PIN to 11 and I also set ARSPD_USE to 0.
Inside the MP HUD I Can see AS icon showing speed as 0.00 mph
What is the best way to test the airspeed sensor on the bench?
Inside MP, under Initial Setup and then “Air Speed Sensor”, we have following choices inside the drop down menu.
So in My case I should be picking “Pixhawk Analog S Port” which basically sets the parameter value ARSPD_PIin to 11. Type I am selecting Analog, which changes the parameter value ARSPD_USE to 1. Should I change to none? This part is bit confusing.
I did trying blowing air into it as suggested, tried squeezing the tube but I hardly see any changes.
I guess there is no way to test it on the bench till i fly the plane?
From Mission Planners Data Screen check the Tuning box on the bottom Then double click in the graph area and select Airspeed. Or from the Status Tab, Airspeed, and just look at the value… If you want to really know if it’s working and you are just nor blowing hard enough set the ARSPD_RATIO to 100 then check.Then you can blow 150 m/s
Yes, Engineer. I design load, torque and pressure sensors for a wide range of applications. It’s primarily Mechanical Engineering with some Electrical Engineering (what I am) and Metallurgy. Prior to that I was a Test Engineer for physical testing services. So I have been around closed loop control and sensors my entire career. And an RC hobbyist obviously with a real fondness for Ardupilot. I enjoy tinkering with Flight Controllers as much as I do flying or driving something!
The sensor is probably working there with the huge scale factor change. I have only used 2 airspeed sensors. This analog one and a digital one. The later is the way to go but both worked OK.
Very Nice!!!. I am an Electronics/Electrical Engineer and my best bud is a Mechanical Engineer. I bet you are good with solid works. I am trying to learn it slowly.
Mechanical Engineering has grown into so many branches now a days. Not sure how old you are and Its getting more and more complex as the technology evolves. My cousin worked for Nasa, Philips, Varian (Designing gantries for photon therapy machines) and currently in San Jose working for some other medical device company.
I recently got involved with Stepper motors system to complete a Drone Kiosk idea I have been working on. This company makes amazing easy to use PLC systems, www.Velocio.net and provide a GUI/flow control based programming software.
Yes, like you I am slowly trying to master Ardupilot, love this platform. So flexible and so many things you can do with it.
I will keep tinkering with it. Thanks for all your help so far. You are one of the few here who know their stuff inside out. Kudos to you.