Wrong wind speed with 3d printed anemometer

ESP32 mySQM+ Sky-Meter/Weather Station with loads of features

Brought to you by: brownrb

Wrong wind speed with 3d printed anemometer

Forum: General Discussion

Creator: Marco Formenton

Created: 2024-10-10

Updated: 2025-08-03

Marco Formenton - 2024-10-10

Hello everyone,
I can't figure out the correct wind speed with my 3d printed anemometer.
I'm using the Baker's design with a reed switch.
I tryed to calibrate the wind speed and at 1.4 meter distance and a fan the anemometer is mooving freely and slowly but on the mysqm webpage I have a windspeed of 43 or more kph and beaufort gave me form 9 Strong Gale to 12 Hurricane.
What have I adjust in my configuration?
Do I need to use a negative offset?

The fw is 139-03

Thank you for the help

Marco

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

brownrb - 2024-10-11

there is a fix coming in firmware rev 140

regards
Robert

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

Marco Formenton - 2024-10-12

thank you for the reply.
do you have an estimated release date?

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

brownrb - 2024-10-18

:-)
Please send an email to either my gmail or yahoo mail accounts, the first test is find the address in what I have provided on this site.

And then we will see what can be done,

Regards
Robert

Last edit: brownrb 2024-10-18

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

Marco Formenton - 2024-10-18

Hello Robert,
i never sent you PM, I only wrote here

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
- brownrb - 2024-10-18
  
  Yes I know, and I was trying to say that please send me an email. Aplogies for the first part
  
  If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

Ari paulechen jr - 2025-08-03

Hello,

I'm having a problem with wind speed too. Even after adjusting the pulse length, the values are much higher than the actual wind speed.

My anemometer is from Sparkfun. Is there another setting that could be wrong?

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

Log in to post a comment.