Two questions on your anemometer. Do you know the current requirements? Does the current requirements change depending on wind speed?
Second question....is there a formula for converting the analog voltage on the blue wire to either m/s or mph?
Thanks, and keep up the fantastic work.
Anemometer Current Draw/Windspeed calculations
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- syrinxtech
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- adafruit_support_mike
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Re: Anemometer Current Draw/Windspeed calculations
The current consumption maxes out at 10mA and has no relation to wind speed.
The output voltage starts at 0.4v @ 0m/s and goes up to 2v @ 32.4m/s. Crunching the numbers gives the following values:
- 50mV =~ 1 meter per second
- 22mV =~ 1 mile per hour
- 15mV =~ 1 foot per second
- 1mV =~ 2cm per second
- 1mV =~ 3/4" per second
The output voltage starts at 0.4v @ 0m/s and goes up to 2v @ 32.4m/s. Crunching the numbers gives the following values:
- 50mV =~ 1 meter per second
- 22mV =~ 1 mile per hour
- 15mV =~ 1 foot per second
- 1mV =~ 2cm per second
- 1mV =~ 3/4" per second
- syrinxtech
- Posts: 6
- Joined: Sun Mar 15, 2015 10:37 pm
Re: Anemometer Current Draw/Windspeed calculations
Many thanks. Great support!
Please be positive and constructive with your questions and comments.