Re: [weewx-user] Rasberry Pi weather station with anemometer and camera only

[Sean Jahnig]

Hi Peter,

Thanks a lot for the reply. I've taken a look at those links and i think 
you're right, it's more than enough for what i will need. At first anyways.

Acurite seem to have a 3-in-1 station but it lacks a wind vane so i think 
the 5-in-1 is my only option. I will try that along with the rasberry pi 
and i believe that will fulfill my requirement for the wind part. Regarding 
the video part - 1080 is actually not necessary. 720 would be enough - or 
else, as you say reducing the frame rate or even having a static image 
every 30 seconds would be enough.

>From what i can gather i am on the the right track here with the acurite 
and the rasberry pi - correct? I think it makes sense to invest in some 
equipment and start fiddling.

Thanks again,
Sean.

On Saturday, September 14, 2019 at 6:18:08 PM UTC+4, p q wrote:
>
> You might look at some of the non-commercial weather station hardware 
> like  https://www.raspberrypi.org/blog/build-your-own-weather-station/ or  
>
> https://www.instructables.com/id/DIY-Anemometer-and-Windvane-for-Standalone-Weather/
>  
> https://projects.raspberrypi.org/en/projects/build-your-own-weather-station/6 
>  
> https://www.raspberrypi.org/forums/viewtopic.php?t=37379
>
> I'm not sure you want to spend what a Davis costs for an anemometer. 
>
> I run a Acurite weather station connected to a older Raspbery Pi 2B 
> running Weewx with no problems. I've messed around with cameras connected 
> to other raspberry pi's and I'm not sure your going to get 1080p streaming. 
> Maybe with a new Raspberry Pi 4, but you're going to use some bandwidth. 
> Maybe a 30 second gif from the web cam updated every 5 minutes would do 
> what you need with tons less bandwidth. Just a thought.
>
>
>
> On Sat, Sep 14, 2019 at 5:35 AM Sean Jahnig  > wrote:
>
>> Hi,
>>
>> I'm new here so if this has been answered before, please just direct me 
>> to the article.
>>
>> I am fairly IT competent but i am not a coder. However, i can read 
>> through tutorials and hack my way most the time.
>>
>> *A bit of background:*
>> I am a surfer and kitesurfer and i live in the UAE. We do not have as 
>> much wind and waves as other countries, but if you watch the weather 
>> closely and make good, informed decisions - you can can get some nice ocean 
>> conditions here for surfing and kitesurfing... and it usually disappears as 
>> quickly as it arrives so timing is key. Following the charts and being 
>> informed is tricky business because there are not many accurate forecasting 
>> websites or stations. Firstly, knowing that the wind/waves is coming is not 
>> accurate, and secondly knowing if it has arrived is not accurate. Being 
>> informed can really save long drives etc. so what i'm really hoping to do 
>> is to build an affordable little station that i can install at a few 
>> locations in order to monitor live wind (via windguru) and wave conditions 
>> (twitch, streaming).
>>
>> At our local kite surfing spot i have setup a wind meter and a webcam but 
>> it is not an efficient solution. We are currently using a full weather 
>> station and a separate mac mini just for handling the web cam stream. It is 
>> not an efficient or affordable solution. You can see the wind meter here: 
>> https://www.windguru.cz/station/1083 and the webcam here: 
>> https://www.twitch.tv/kitebeachcenteruaq ... What i am really hoping to 
>> do is build something smaller and cheaper that can achieve the same thing - 
>> and also in a smaller package like a waterproof box so that i can approach 
>> hotels and use a small footprint (and their internet) to have a little 
>> station to monitor the wind and waves at their condition.
>>
>> I have been doing a lot of reading and i do believe the rasberry pi has 
>> all the functionality i need. It is just the exact process of getting 
>> everything to talk to each other that i need some help with. Also, because 
>> i am funding this myself i really need to try and keep the cost down. I 
>> only need an anemometer for wind speed and direction + a 1080p weather 
>> proof outdoor camera. Nothing else.
>>
>> In my head, this is how i imagine it will work:
>>
>>1. Buy an anemometer like - Davis Instruments 6410 
>>https://amzn.to/2kBgCTh
>>2. Buy a 1080p camera, whether usb or ethernet. It just need to be 
>>weatherproof and compatible
>>3. Buy Rasberry pi and load weewx which will talk to windguru
>>4. Setup the Rasberry pi with something like https://www.noip.com/ so 
>>that i can access it remotely for maintenance
>>
>> Questions i have:
>>
>>1. Can i buy only the anemometer above and connect it into the 
>>rasberry pi (about $120) ? or do i need to invest in the whole station 
>>(about $600) in order to have it readable by the rasberry pi ?
>>2. Is anyone successfully streaming a webcam via twitch using a 
>>rasberry pi? (ref - https://www.youtube.com/watch?v=ob-V1xI7c8I)
>>
>> Appreciate anything that can be added to my project.
>>

[weewx-user] Re: Rasberry Pi weather station with anemometer and camera only

[Jardi Martínez]

Hi Sean,

I can't comment on the camera but I wrote a weeWX driver based on the  Build 
Your Own Weather Station 
 
instructions, you don't need to assemble all the parts described there to 
use the driver, you could set it up with just an anemometer. I agree in 
that you might not want to spend that money for a Davis anemometer if 
that's all you want.

The driver code is here: https://github.com/jardiamj/BYOWS_RPi

I wrote the driver without having the hardware to test it. Patrick 
requested it in this forums a few months ago so I put it together, he 
tested it and has been running it for a while now without many issues.

Jardi.

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[weewx-user] Re: cheetahgenerator: Generate failed with exception ''

[gjr80]

That is the CSS file, we are interested in gauge-data.txt.tmpl, this link is to 
the current version 
https://raw.githubusercontent.com/mcrossley/SteelSeries-Weather-Gauges/master/weather_server/WeeWX/gauge-data.txt.tmpl

Gary

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[weewx-user] Re: cheetahgenerator: Generate failed with exception ''

[Cat22]

Once I replace the sensor i will post back here and let you know how its 
working out.
The file gauges-ss.css shows:
/* CSS for SteelSeries Gauges
 * Mark Crossley
 * v2.5.0 - 03 Dec 2014
*/
Is that the steel series version?

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[weewx-user] Highcharts Alternative for weather34 WX-HWS Template (skin)

[steeple ian]

Highcharts extension for weather 34 WX-HWS template has been released. This 
an alternative to the default CanvasJS charts.

Although this extension is offered here as a manual install, the intention 
is to include it as a standard feature in a fully packaged skin of WX-HWS 
which is currently in preparation.


The following charts have been created: - Temperature, Humidity, Dewpoint, 
Temp/Hum/Dew, Indoor Temp, Windchill/HeatIndex, Barometer, Wind Speed, Wind 
Direction, Windrose, Wind Speed/Wind Gust/Wind Direction, UV, Radiation, 
Radiation/UV, Rainfall, Rainfall Monthly, Luminosity, Lightning, 
Barometer/Temp/Wind.


Most charts have both weekly (1hour, 6hours, 12hours, 24hours, 36hours and 
7days) and yearly (1day, 1week, 1month, 6months and 1year) spans. Please 
note, the 6month button is only functional when there is at least 6 months 
data in the database.


The following charts have radial views: Temp, Dewpoint, Humidity, 
Barometer, Indoor, Derived, Wind Speed.


Most charts can change from yearly to weekly to daily by clicking the "hook 
point" on the graph. If there is no hook point then that chart cannot 
change. For example Windrose chart does not switch.


Different dates can be compared with some charts. If there is a compare 
dates option in the menu dropdown (context menu, top right) then choosing 
this option will display a chart that compares the two dates in the From 
and To fields of the chart.


Charts can be reloaded by choosing the reload option in the context menu.


Some charts can have realtime updates by choosing the realtime update 
option in the context menu.


Some charts can be display as radial charts by choosing the radial chart 
option in the context menu.


Most charts can be automatically updated at a 1 minute interval by choosing 
the Auto Update option in the context menu.


Changing the dates in From and To fields will change what is displayed 
based on what the span is. Most useful when displaying charts with yearly 
spans.


Holding the left mouse down allows the chart to be scrolled left to right 
within the chosen span. Using this feature with the zoom selector allows a 
user to drill down into the chart.

The repository is at https://github.com/steepleian/highcharts-for-wx-hws

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[weewx-user] Re: AS3935 Lightening Detector

[J D]

Hi Dan,
Nice write up of your work.

Here are a couple items to help with the correctness of the device.
If you are using the very common python code found on the net there are a 
number of issues with it.
The big one is the disturber mask part.  In the specs when a disturber is 
detected the device turns off for a 1.5 seconds. It also sends the 
interrupt. If you are using the python code the interrupt handler turns on 
the mask interrupt bit in the device. So now no more interrupts but the 
device still turns off and this is bad. Also to make things worse very far 
away lightning is sometimes detected as a disturber. So IMHO I would 
disable the setting of the mask bit and if you are having a lot of issues 
with disturbers either move the device or change the Watchdog setting, or 
the AFE setting or the Spike setting or the Noise setting to reduce the 
number of disturbers. This is not a perfect solution since changing the 
settings reduces the device sensitivity but at least it does not turn it 
off for a 1.5 seconds.
The next problem is the Noise threshold part of the python code. The 
problem here is noise can come and go but the code only raises the Noise 
Threshold there is no code for lowering it. Again IMHO I found that it is 
best to disable this code and if the noise is truly an issue manually raise 
the Noise threshold or put in timer code that lowers it to see if the noise 
is still high.
Another code issue is that there is no auto calibrate of the tune cap. 
There does exist a "c" version for auto tune and I have written my own 
python version of auto tune. Auto tune IMHO is only needed if you have the 
device outside where there are large temp swings. I have found that as the 
devices get hot the tune cap value needs to go higher to keep it as close 
as possible to 500khz. The specs state that the other oscillators are temp 
compensated but nothing about the 500khz oscillator.  Usually the change is 
just one or two steps up or down. So I run the auto-tune 3 times a day 
(morning, noon,night) and if the device is detecting lightning then I skip 
the auto-tune for that time.
Thanks Jerry


On Saturday, September 14, 2019 at 8:21:02 AM UTC-7, dan Forster wrote:
>
>
>
>
>
> Sorry I have not been about and replying to board messages. Started some 
> DIY project which turned out larger than expected...
>
> This is how I got my AS3935 to work in Weewx. It may not bee 100% correct, 
> but it is now working on two pi's really well. Note if you think you are 
> going to run this on 6" pieces of cable, so its close to the pi, indoors, 
> next to all your gizzmos, the lightning will bite your bum for this thing 
> sees it. Its best run in a low noise environment (away from power supplies, 
> cheap LED lights, computer screens, etc). From what I can gather, its a 
> 500khz receiver and some clever logic, so like any radio, it likes to be 
> able to see the sky. I will start from scratch so you can get going from a 
> new pi sdcard/AS3935 board
>
> This is the detection board I use - 
> https://www.ebay.co.uk/itm/AS3935-Lightning-Strike-Storm-Distances-Detector-I2C-SPI-Sensor-Programmable/333265065400?_trkparms=ispr%3D1=item4d982555b8:g:VWUAAOSw1NNdKCt2=AQAEAAAB4BPxNw%2BVj6nta7CKEs3N0qX6knsPaWu2HyFk9u1VHKBpz81ghsTUEAWuMAkGOyv6nDm%2FfHF6ZNRVWUmyw6fMizGZ%2BYp4db2m9KpEC601RxylniwLIMm1Yna7V1VtB3WNTdeLsrOFmUXb8ykzBxZK2B3hLzfgKkhHP80k%2BXuEpKA7AgDyaSN%2FJluRWLSOUQ88THmlkf3DW0W6wL2mUZW5Sp9gkMFWxvt2OpppfyNs2YHI%2B2C%2Ftbi5YMd%2BCv5q6K300H7lsatLWwQEkE6kv1YXLLis4zt4NUw58qFrTss5O%2B%2FnahobycDwpibwG%2B%2Bj8LZ5Hn3HJgTc8sQFNyhu%2Bm6M2RUolopnAvcJu%2BWCVgM%2Fz3fr0O7l1u%2FZ1cd64SuOKVm%2FvCNIDddFrgZNW0gbMjAVxwlS11mmQuiIowAqFlf6d16f7t1yrCXjHYPZyTEqdNhTNpycb1IGseu6FoaXpJquvoB4nZrnPvn0qe7P1xPdyHVfNXh224r8jd4NDdC0jCDVDJlJD8ilWZKXe6%2Fb5sNQIoJqw5tWlPbv5gbq%2FC%2BdpTM%2BJMKdeeAPfLpHN%2FpirKMAKcbKuW6wydhGa7aa%2BRk6SnCsySeIvixE2%2Fet4FPn%2BRvEQVFVNg2M1L4tkPkpFW6bdA%3D%3D=333265065400e9f0e246d5364032ab0e55b879590ef8
>  
> - they seem fairly tough little things to be honest and can seemingly 
> withstand lots of abuse - (I must have changed every wire ((not power pins 
> of course)) in my experimentation's).
>
>
> Using RPi 3 board - using this image 
> https://downloads.raspberrypi.org/raspbian/images/raspbian-2018-11-15/. 
> Its not the latest - I prefer something tried and tested and sort of bug 
> free. NOTE - once the image is burnt to sdcard (
> https://www.balena.io/etcher/ makes prepping sdcards a cup of tea - DONT 
> buy cheap sdcards, they will make the system crawl like a snail), eject 
> card, then reinsert to the same MAC/WIN PC you just prepped card on, then 
> add a little file called ssh (make with a text editor) with no extension 
> (so thats no full stop after ssh file name - just a file called ssh) to the 
> bootable partition (the partition you see when you insert this rpi OS ready 
> sdcard into a MAC/WIN machine). This enables ssh access as default. I dont 
> use a desktop on the pi, just ssh.
>
> Put new 

[weewx-user] Re: AS3935 Lightening Detector

[dan Forster]

Sorry I have not been about and replying to board messages. Started some 
DIY project which turned out larger than expected...

This is how I got my AS3935 to work in Weewx. It may not bee 100% correct, 
but it is now working on two pi's really well. Note if you think you are 
going to run this on 6" pieces of cable, so its close to the pi, indoors, 
next to all your gizzmos, the lightning will bite your bum for this thing 
sees it. Its best run in a low noise environment (away from power supplies, 
cheap LED lights, computer screens, etc). From what I can gather, its a 
500khz receiver and some clever logic, so like any radio, it likes to be 
able to see the sky. I will start from scratch so you can get going from a 
new pi sdcard/AS3935 board

This is the detection board I use - 
https://www.ebay.co.uk/itm/AS3935-Lightning-Strike-Storm-Distances-Detector-I2C-SPI-Sensor-Programmable/333265065400?_trkparms=ispr%3D1=item4d982555b8:g:VWUAAOSw1NNdKCt2=AQAEAAAB4BPxNw%2BVj6nta7CKEs3N0qX6knsPaWu2HyFk9u1VHKBpz81ghsTUEAWuMAkGOyv6nDm%2FfHF6ZNRVWUmyw6fMizGZ%2BYp4db2m9KpEC601RxylniwLIMm1Yna7V1VtB3WNTdeLsrOFmUXb8ykzBxZK2B3hLzfgKkhHP80k%2BXuEpKA7AgDyaSN%2FJluRWLSOUQ88THmlkf3DW0W6wL2mUZW5Sp9gkMFWxvt2OpppfyNs2YHI%2B2C%2Ftbi5YMd%2BCv5q6K300H7lsatLWwQEkE6kv1YXLLis4zt4NUw58qFrTss5O%2B%2FnahobycDwpibwG%2B%2Bj8LZ5Hn3HJgTc8sQFNyhu%2Bm6M2RUolopnAvcJu%2BWCVgM%2Fz3fr0O7l1u%2FZ1cd64SuOKVm%2FvCNIDddFrgZNW0gbMjAVxwlS11mmQuiIowAqFlf6d16f7t1yrCXjHYPZyTEqdNhTNpycb1IGseu6FoaXpJquvoB4nZrnPvn0qe7P1xPdyHVfNXh224r8jd4NDdC0jCDVDJlJD8ilWZKXe6%2Fb5sNQIoJqw5tWlPbv5gbq%2FC%2BdpTM%2BJMKdeeAPfLpHN%2FpirKMAKcbKuW6wydhGa7aa%2BRk6SnCsySeIvixE2%2Fet4FPn%2BRvEQVFVNg2M1L4tkPkpFW6bdA%3D%3D=333265065400e9f0e246d5364032ab0e55b879590ef8
 
- they seem fairly tough little things to be honest and can seemingly 
withstand lots of abuse - (I must have changed every wire ((not power pins 
of course)) in my experimentation's).


Using RPi 3 board - using this image 
https://downloads.raspberrypi.org/raspbian/images/raspbian-2018-11-15/. Its 
not the latest - I prefer something tried and tested and sort of bug free. 
NOTE - once the image is burnt to sdcard (https://www.balena.io/etcher/ 
makes prepping sdcards a cup of tea - DONT buy cheap sdcards, they will 
make the system crawl like a snail), eject card, then reinsert to the same 
MAC/WIN PC you just prepped card on, then add a little file called ssh 
(make with a text editor) with no extension (so thats no full stop after 
ssh file name - just a file called ssh) to the bootable partition (the 
partition you see when you insert this rpi OS ready sdcard into a MAC/WIN 
machine). This enables ssh access as default. I dont use a desktop on the 
pi, just ssh.

Put new card in pi - boot - log in via ssh

run sudo rpi- config = enable IC2 and expand filesystem, change your locale 
and give the pi a hostname that makes sense (then it can be any IP it wants 
to be, you can easily look up on your LAN using hostname - easier to 
remember than IP addresses. Reboot pi.

Update the pi when its rebooted (sudo apt-get update - and sudo apt-get 
upgrade). I also change the default pi password, just to be safe (note to 
use this new password when you reboot pi!).

Reboot pi - ssh in (I run everything from my home pi directory unless 
otherwise stated)

Install apache2 -  sudo apt-get install apache2 -y  (I like this to be on 
the pi so weewx sees it on install).

Install weewx as follows (or any other way that you like, this adds the 
repository to the pi so updating and installation is real easy).

wget -qO - http://weewx.com/keys.html | sudo apt-key add -
wget -qO - http://weewx.com/apt/weewx.list | sudo te e 
/etc/apt/sources.list.d/weewx.list
sudo apt-get update
sudo apt-get install weewx

Now when you do a sudo apt-get update/upgrade, weewx gets updated too.

Power down you pi

Wire up your as3935 module (earth yourself first for a few seconds, the 
little pcb is static sensitive).

Board VDD = 3.0VDC - PIN # 1 - RED
Board GND = Ground - PIN # 6 - BLACK
Board SCK/SCL = SCL - PIN # 5 - GPIO 3 - WHITE
Board MOSI/SDA = SDA - PIN # 3 - GPIO 2 - GREEN
Board IRQ = Pin #11 - GPIO 17 - YELLOW
Board SI = 3.0VDC - Pin #17 for i2c - RED
Board A0 and A1 = 3.0VDC - Pin #17

I use a soldering iron to make the last 3 connections above to pin #17 
(modify some push on connections with the soldering iron rather than solder 
anything directly to the pi) - ditto push on connections for the AS3935 
board.

The reason to put 3V on A0 and A1 is to give it an address that can read by 
by ic2-tools.

Power up your pi and ssh in.

Type - sudo apt-get install i2c-tools

Type i2cdetect -y 1

You should now see the module show up as address 03 (if you don't use the 
address pins of the module A0 and A1 - you leave then unconnected for 
instance - the module will have an address that wont show on ic2detect).

I then install the python library using - sudo pip install RPi_AS3935 this 
makes the module directly accessible by python.

I then install 

Re: [weewx-user] Rasberry Pi weather station with anemometer and camera only

[p q]

You might look at some of the non-commercial weather station hardware like
https://www.raspberrypi.org/blog/build-your-own-weather-station/ or
https://www.instructables.com/id/DIY-Anemometer-and-Windvane-for-Standalone-Weather/

https://projects.raspberrypi.org/en/projects/build-your-own-weather-station/6
https://www.raspberrypi.org/forums/viewtopic.php?t=37379

I'm not sure you want to spend what a Davis costs for an anemometer.

I run a Acurite weather station connected to a older Raspbery Pi 2B running
Weewx with no problems. I've messed around with cameras connected to other
raspberry pi's and I'm not sure your going to get 1080p streaming. Maybe
with a new Raspberry Pi 4, but you're going to use some bandwidth. Maybe a
30 second gif from the web cam updated every 5 minutes would do what you
need with tons less bandwidth. Just a thought.



On Sat, Sep 14, 2019 at 5:35 AM Sean Jahnig  wrote:

> Hi,
>
> I'm new here so if this has been answered before, please just direct me to
> the article.
>
> I am fairly IT competent but i am not a coder. However, i can read through
> tutorials and hack my way most the time.
>
> *A bit of background:*
> I am a surfer and kitesurfer and i live in the UAE. We do not have as much
> wind and waves as other countries, but if you watch the weather closely and
> make good, informed decisions - you can can get some nice ocean conditions
> here for surfing and kitesurfing... and it usually disappears as quickly as
> it arrives so timing is key. Following the charts and being informed is
> tricky business because there are not many accurate forecasting websites or
> stations. Firstly, knowing that the wind/waves is coming is not accurate,
> and secondly knowing if it has arrived is not accurate. Being informed can
> really save long drives etc. so what i'm really hoping to do is to build an
> affordable little station that i can install at a few locations in order to
> monitor live wind (via windguru) and wave conditions (twitch, streaming).
>
> At our local kite surfing spot i have setup a wind meter and a webcam but
> it is not an efficient solution. We are currently using a full weather
> station and a separate mac mini just for handling the web cam stream. It is
> not an efficient or affordable solution. You can see the wind meter here:
> https://www.windguru.cz/station/1083 and the webcam here:
> https://www.twitch.tv/kitebeachcenteruaq ... What i am really hoping to
> do is build something smaller and cheaper that can achieve the same thing -
> and also in a smaller package like a waterproof box so that i can approach
> hotels and use a small footprint (and their internet) to have a little
> station to monitor the wind and waves at their condition.
>
> I have been doing a lot of reading and i do believe the rasberry pi has
> all the functionality i need. It is just the exact process of getting
> everything to talk to each other that i need some help with. Also, because
> i am funding this myself i really need to try and keep the cost down. I
> only need an anemometer for wind speed and direction + a 1080p weather
> proof outdoor camera. Nothing else.
>
> In my head, this is how i imagine it will work:
>
>1. Buy an anemometer like - Davis Instruments 6410
>https://amzn.to/2kBgCTh
>2. Buy a 1080p camera, whether usb or ethernet. It just need to be
>weatherproof and compatible
>3. Buy Rasberry pi and load weewx which will talk to windguru
>4. Setup the Rasberry pi with something like https://www.noip.com/ so
>that i can access it remotely for maintenance
>
> Questions i have:
>
>1. Can i buy only the anemometer above and connect it into the
>rasberry pi (about $120) ? or do i need to invest in the whole station
>(about $600) in order to have it readable by the rasberry pi ?
>2. Is anyone successfully streaming a webcam via twitch using a
>rasberry pi? (ref - https://www.youtube.com/watch?v=ob-V1xI7c8I)
>
> Appreciate anything that can be added to my project.
>
> Thanks,
> Sean.
>
>
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> 
> .
>


-- 
Peter Quinn
(415)794-2264

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[weewx-user] Rasberry Pi weather station with anemometer and camera only

[Sean Jahnig]

Hi,

I'm new here so if this has been answered before, please just direct me to 
the article.

I am fairly IT competent but i am not a coder. However, i can read through 
tutorials and hack my way most the time.

*A bit of background:*
I am a surfer and kitesurfer and i live in the UAE. We do not have as much 
wind and waves as other countries, but if you watch the weather closely and 
make good, informed decisions - you can can get some nice ocean conditions 
here for surfing and kitesurfing... and it usually disappears as quickly as 
it arrives so timing is key. Following the charts and being informed is 
tricky business because there are not many accurate forecasting websites or 
stations. Firstly, knowing that the wind/waves is coming is not accurate, 
and secondly knowing if it has arrived is not accurate. Being informed can 
really save long drives etc. so what i'm really hoping to do is to build an 
affordable little station that i can install at a few locations in order to 
monitor live wind (via windguru) and wave conditions (twitch, streaming).

At our local kite surfing spot i have setup a wind meter and a webcam but 
it is not an efficient solution. We are currently using a full weather 
station and a separate mac mini just for handling the web cam stream. It is 
not an efficient or affordable solution. You can see the wind meter here: 
https://www.windguru.cz/station/1083 and the webcam here: 
https://www.twitch.tv/kitebeachcenteruaq ... What i am really hoping to do 
is build something smaller and cheaper that can achieve the same thing - 
and also in a smaller package like a waterproof box so that i can approach 
hotels and use a small footprint (and their internet) to have a little 
station to monitor the wind and waves at their condition.

I have been doing a lot of reading and i do believe the rasberry pi has all 
the functionality i need. It is just the exact process of getting 
everything to talk to each other that i need some help with. Also, because 
i am funding this myself i really need to try and keep the cost down. I 
only need an anemometer for wind speed and direction + a 1080p weather 
proof outdoor camera. Nothing else.

In my head, this is how i imagine it will work:

   1. Buy an anemometer like - Davis Instruments 6410 
   https://amzn.to/2kBgCTh
   2. Buy a 1080p camera, whether usb or ethernet. It just need to be 
   weatherproof and compatible
   3. Buy Rasberry pi and load weewx which will talk to windguru
   4. Setup the Rasberry pi with something like https://www.noip.com/ so 
   that i can access it remotely for maintenance

Questions i have:

   1. Can i buy only the anemometer above and connect it into the rasberry 
   pi (about $120) ? or do i need to invest in the whole station (about $600) 
   in order to have it readable by the rasberry pi ?
   2. Is anyone successfully streaming a webcam via twitch using a rasberry 
   pi? (ref - https://www.youtube.com/watch?v=ob-V1xI7c8I)

Appreciate anything that can be added to my project.

Thanks,
Sean.


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[weewx-user] Re: cheetahgenerator: Generate failed with exception ''

[gjr80]

Interesting, because humidity going to zero does not fit the error. Even 
humidity going to None should not cause the cheetah error you are seeing 
(provided you are using the latest version of the template). Will be 
interesting to see how things go when you replace the sensor.

Gary

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[weewx-user] Re: cheetahgenerator: Generate failed with exception ''

[Cat22]

I had meant to get back here yesterday but had pressing business.
I figured out this was due to a bad humidity sensor in my Vantage Pro 2. 
I have a new one ordered from Davis
I can track humidity and see it goes to Zero for hours at a time then rises 
again to normal levels

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