TFA Sinus wind sensor (Cresta) reports mph not km/h

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ds106
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TFA Sinus wind sensor (Cresta) reports mph not km/h

#1 Post by ds106 » 25 Feb 2018, 15:49

Hello,
System:
Odroid C2 armbian debian
RFLink Version: 1.1 Revision: 48 Build: 4
TFA Sinus weather station, wind sensor 30.3149 detected as Cresta device

Code: Select all

Cresta;ID=8801;WINDIR=0002;WINSP=0004;WINGS=0011;WINTMP=005c;WINCHL=005c;BAT=OK
wind speed is reported as 0,4 km/h but on Sinus Display I see 0,4 mph

Code: Select all

20;56;DEBUG;Pulses=200;Pulses(uSec)=60,30,810,930,810,930,810,450,330,450,330,930,330,450,330,450,330,450,330,450,810,450,330,450,330,450,330,930,330,450,330,450,810,930,330,450,810,450,330,930,810,930,330,450,330,450,810,930,330,450,330,450,810,450,330,930,330,450,810,450,330,450,330,930,330,450,330,450,810,930,330,450,330,450,330,450,330,450,330,450,330,450,810,930,330,450,330,450,810,450,330,450,330,930,330,450,330,450,810,930,330,450,330,450,330,450,330,450,330,450,330,450,810,930,330,450,330,450,330,450,810,450,330,450,330,450,330,450,330,450,330,930,330,450,330,450,330,450,330,450,810,930,810,450,330,930,810,450,330,450,330,450,330,450,330,450,330,450,330,450,330,930,330,450,330,450,330,450,810,930,330,450,330,450,810,930,810,930,810,930,810,930,810,930,330,450,330,450,330,450,810,930,810,930,330,450,330,450,330,6990;
20;57;Cresta;ID=8801;WINDIR=0002;WINSP=0004;WINGS=0011;WINTMP=005c;WINCHL=005c;BAT=OK;
Regards Götz

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Stuntteam
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Re: TFA Sinus wind sensor (Cresta) reports mph not km/h

#2 Post by Stuntteam » 26 Feb 2018, 23:38

I have that same wind speed sensor and on my display it reports in km/h.. and it matches the output of RFlink.
I am not sure where the problem is..
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ds106
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Posts: 8
Joined: 25 Feb 2018, 15:26

Re: TFA Sinus wind sensor (Cresta) reports mph not km/h

#3 Post by ds106 » 27 Feb 2018, 15:23

Hello,
it matches only if I switch to mph on Sinus display. Ruud v Gessel's "Cresta weather sensor protocol" describes Windspeed and Windgust as mph, in Plugin_034.c I cant see any convertion to km/h.

Regards Götz

ds106
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Re: TFA Sinus wind sensor (Cresta) reports mph not km/h

#4 Post by ds106 » 17 Mar 2018, 16:18

Hello,
domoticz log:

Code: Select all

 2018-03-17 15:40:01.667 RFLink: 20;31;Cresta;ID=8801;WINDIR=0003;WINSP=000b;WINGS=0012;WINTMP=0013;WINCHL=0013;BAT=OK;
2018-03-17 15:40:34.844 RFLink: 20;39;Cresta;ID=8801;WINDIR=0005;WINSP=000b;WINGS=000e;WINTMP=0012;WINCHL=0012;BAT=OK;
2018-03-17 15:41:07.671 RFLink: 20;41;Cresta;ID=8801;WINDIR=0003;WINSP=000b;WINGS=000e;WINTMP=0011;WINCHL=0011;BAT=OK;
2018-03-17 15:41:41.021 RFLink: 20;47;Cresta;ID=8801;WINDIR=0014;WINSP=000b;WINGS=0021;WINTMP=0011;WINCHL=0011;BAT=OK; 
0b -> 11 -> 1,1 1,1mph = 1,77km/h
corresponding Display:
Sinus_kmh.jpg
Sinus_kmh.jpg (6.85 KiB) Viewed 9224 times
Regards Götz

ds106
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Posts: 8
Joined: 25 Feb 2018, 15:26

Re: TFA Sinus wind sensor (Cresta) reports mph not km/h

#5 Post by ds106 » 28 Aug 2018, 21:34

Hello,
I I bought a used rfxcom433 and so I can compare sensor readings.
The attachment Wind.jpg is no longer available
Wind.jpg
Wind.jpg (34.37 KiB) Viewed 8723 times
As you can see the readings for speed and gust are not the same.

Regards Götz

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Stuntteam
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Re: TFA Sinus wind sensor (Cresta) reports mph not km/h

#6 Post by Stuntteam » 29 Aug 2018, 00:35

I will re-measure with my device..
-=# RFLink Gateway Development Team #=-
Introduction: http://www.nemcon.nl/blog2/
Generic Support forum: http://www.esp8266.nu/forum/viewforum.php?f=8

ds106
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Re: TFA Sinus wind sensor (Cresta) reports mph not km/h

#7 Post by ds106 » 23 Oct 2018, 23:30

Hi,
now its autumn and more windy so differences more visible.
wind2.JPG
wind2.JPG (36.09 KiB) Viewed 8533 times
Regards Götz

ds106
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Posts: 8
Joined: 25 Feb 2018, 15:26

Re: TFA Sinus wind sensor (Cresta) reports mph not km/h

#8 Post by ds106 » 21 Oct 2021, 14:47

Hello,
3 years later and nothing happened :-(
rfl-rfx.jpg
rfl-rfx.jpg (75.25 KiB) Viewed 4377 times
Regards Götz

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