my umbrella should be protected against destroy

what can destroy umbrella  ... of course strong wind !

so I am start developing wind sensor (anemometer)

 

below is real foto of anemometer elements (additionally is mounted gps module):

 

wirnik.bmp

 

up this time

1. I bought all needed elements ( turbine, encoder, wires )

2. I wrote frequency measure algorithm (timer in capture mode)

 

now I must make :

1. write software incoming data filter

2. create hardware LF RC filter

3. make tests,

 

P.S.

when I will be in home I will share code

"frequency measured software"

it is fixed version of project timer_cc from SDK

 

b.r.

Lukasz, Poland

 

update 01

frequency measure - code (timer_cc.zip)

-  TimerA2 in capture mode    - pin P04

-  TimerA0 in continous mode - signal on pin P61

connect together P61and P04

results ( measured frequency value) are displayed on terminal  ( 115200 8N1 )

 

update 02

frequency measure  + software filter - code (timer_cc1.zip)

- TimerA2 in caputer mode - pin P04

- TimerA0 in continuous mode

connect together P61and captured signal

results ( measured frequency value) are displayed on terminal  ( 115200 8N1 )

 

update 03

hardware LF 200Hz Fc filter

created by: http://sim.okawa-denshi.jp/en/CRtool.php

filter1.jpg

filter2.jpg

update 04

compleate schematic

- encoder ED1212s

- pull up rezistor

- lf 200Hz filter


schematic.jpg



update 04

anemometer is done

2.jpg

and video

( camera operator my wife )

 

 

measured frequency  100Hz, after calibration anemometer will be working perfectly

 

best regards

Lukasz, Poland