Hi there, thanks for the support!
I'm looking for someone who can give me a hint, how to read an vane/propeller air speed sensor with just two wires.
If it helps, i measured 0.8V and 1.7V in Diodemode with my multimeter but i have no clue, how to proceed.
First you need to test it with your DVM on a DC setting so you can find the DV voltage and determine the + wire and the - wire so when you hook it to your Arduino, you can connect the - to the Arduino ground. When you know the + voltage maximum, then the next step can be taken.
Open it up to see what the interior circuitry looks like, and post a photo.
Post a photo of the entire wind vane, too. Are there any markings or a model number on the housing?
Marking 1: 9244/310
Marking on Cable: 9932-0231 35939 026
Resistor Value 6k Ohm
Looks like it wasn't a handheld Anemometer or a Probe, more like of a High School Laboratory XD
When i opened it up for the first time, both leads were soldered together....
What does that mean? The connections look normal in the photo.
Just on probability, the green wire is likely to be (+) and the black (-). The sensor could be either an inductive or hall effect device.
The asymmetric "diode check" readings suggest that there are active electronics in the sensor housing, which could possibly be fried by powering it up the wrong way around.
A two-wire connection and placement next to the tip of the fan blade suggests an inductive sensor that modulates the current flow in the power leads. I've seen a number of such sensors that operate on 9-24V.
Yes, applying power via a load resistor and scoping the current would be a good start.
Meaning i soldered them to the black/green wire after disconnecting them. I looked as if they were soldered together, if i remeber correctly...
Wire color before the Resistor is blue/black.
Thanks for all the hints and help!
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