Youshiko YC9388 Weather station

Bob Atchley

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Jan 3, 2020, 1:20:49 PM1/3/20

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Hi,

Has anyone had any luck interfacing weewx (on a rpi) to this weather station (which is identical to the Bresser 6 in 1) and if so could you give me any pointers ?

https://youshiko.co.uk/collections/digital-weather-stations/products/yc9388

My basic assumption is that this is a Fine Offset clone.

The fundamental problem I'm having is with the USB interface

$ lsusb -v -d 1941:8021

Bus 001 Device 004: ID 1941:8021 Dream Link WH1080 Weather Station / USB Missile Launcher
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x1941 Dream Link
idProduct 0x8021 WH1080 Weather Station / USB Missile Launcher
bcdDevice 0.00
iManufacturer 1 Silicon Laboratories Inc.
iProduct 2 CCLEL C8488
iSerial 3 CCLEL c8488
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0022
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0
bInterfaceProtocol 1 Keyboard
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 36
Report Descriptor: (length is 36)
Item(Global): Usage Page, data= [ 0x00 0xff ] 65280
(null)
Item(Local ): Usage, data= [ 0x01 ] 1
(null)
Item(Main ): Collection, data= [ 0x01 ] 1
Application
Item(Local ): Usage Minimum, data= [ 0x01 ] 1
(null)
Item(Local ): Usage Maximum, data= [ 0x08 ] 8
(null)
Item(Global): Logical Minimum, data= [ 0x00 ] 0
Item(Global): Logical Maximum, data= [ 0xff ] 255
Item(Global): Report Count, data= [ 0x40 ] 64
Item(Global): Report Size, data= [ 0x08 ] 8
Item(Main ): Input, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Local ): Usage Minimum, data= [ 0x01 ] 1
(null)
Item(Local ): Usage Maximum, data= [ 0x08 ] 8
(null)
Item(Global): Logical Minimum, data= [ 0x00 ] 0
Item(Global): Logical Maximum, data= [ 0xff ] 255
Item(Global): Report Count, data= [ 0x08 ] 8
Item(Global): Report Size, data= [ 0x08 ] 8
Item(Main ): Output, data= [ 0x02 ] 2
Data Variable Absolute No_Wrap Linear
Preferred_State No_Null_Position Non_Volatile Bitfield
Item(Main ): End Collection, data=none
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
Device Status: 0x0001
Self Powered

Running wee_ device works, but the values returned are all defaults not what the console is displaying.

$ sudo bin/wee_device --info

Using configuration file /home/weewx/weewx.conf
Using FineOffsetUSB driver version 1.20 (weewx.drivers.fousb)
Querying the station...
Fine Offset station settings:
local time: 2020.01.03 17:47:03 GMT
polling mode: PERIODIC

abs_pressure: 0
current_pos: 0
data_changed: 0
data_count: 0
date_time: 2000-00-00 00:00
hum_in_offset: 0
hum_out_offset: 0
id: 0
lux_wm2_coeff: 0
magic_1: 0xfa
magic_2: 0x 3
model: 0
rain_coef: 0
read_period: 0
rel_pressure: 101.8
temp_in_offset: 0
temp_out_offset: 0
timezone: 0
unknown_01: 0
unknown_18: 3
version: 0
wind_coef: 0
wind_mult: 0

max.abs_pressure.date: 2000-00-00 00:00
max.abs_pressure.val: 0
max.dewpoint.date: 2000-160-03 00:00
max.dewpoint.val: 0

.... (cut similar)

and the log file shows :

Jan 3 17:45:28 rpi2 wee_device[2565] INFO weewx.drivers.fousb: driver version is 1.20
Jan 3 17:45:28 rpi2 wee_device[2565] INFO weewx.drivers.fousb: polling mode is PERIODIC
Jan 3 17:45:28 rpi2 wee_device[2565] INFO weewx.drivers.fousb: polling interval is 60
Jan 3 17:45:28 rpi2 wee_device[2565] INFO weewx.drivers.fousb: found station on USB bus= device=
Jan 3 17:45:28 rpi2 wee_device[2565] INFO weewx.drivers.fousb: unstable read: blocks differ for ptr 0x000000
Jan 3 17:45:30 rpi2 wee_device[2565] INFO weewx.drivers.fousb: unstable read: blocks differ for ptr 0x000000
Jan 3 17:45:32 rpi2 wee_device[2565] INFO weewx.drivers.fousb: unstable read: blocks differ for ptr 0x000000
.... (many similar cut)
Jan 3 17:46:53 rpi2 wee_device[2565] INFO weewx.drivers.fousb: unstable read: blocks differ for ptr 0x0000e0
Jan 3 17:46:55 rpi2 wee_device[2565] INFO weewx.drivers.fousb: unstable read: blocks differ for ptr 0x0000e0
Jan 3 17:46:57 rpi2 wee_device[2565] INFO weewx.drivers.fousb: unstable read: blocks differ for ptr 0x0000e0
Jan 3 17:46:59 rpi2 wee_device[2565] INFO weewx.drivers.fousb: unstable read: blocks differ for ptr 0x0000e0
Jan 3 17:47:01 rpi2 wee_device[2565] INFO weewx.drivers.fousb: unstable read: blocks differ for ptr 0x0000e0
Jan 3 17:47:03 rpi2 wee_device[2565] ERROR weewx.drivers.fousb: unrecognised magic number fa03

I've cycled through the model numbers in the weewx.conf [FineOffsetUSB] settings but this has made no difference.

I should say I was using the latest stable version on a rpi4 but wee_device crashes with this on the first usb block read (errno 75, Overflow). I am now using 4.0.0b6 on an rpi2 which at least doesn't crash.

I have attached a laptop running windows with the manufacturers software - this works perfectly (but the software is very limited) so at least I know the weather station is fully functional

Thanks

Bob

Bob Atchley

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Jan 4, 2020, 12:31:01 PM1/4/20

to weewx-user

Re-reading the documentation it would seem currently that the weewx FineOffsetUsb driver supports 2 formats:

1080

3080

These are similar but 3080 expands the 1080 to include UV and Luminescence.

The "Youshiko YC9388"/"Bresser 6 in 1" can support up to 7 additional wireless hydro-thermo outdoor sensors. So presumably has an expanded format that allows these sensor outputs to be read.

So unless anyone knows better I think the answer is that weewx does not currently support this new generation of fine offset weather stations.

I'm quite happy to try and get this working (I'm a software engineer, but never dabbled with USB protocols and only used Python for basic tools), but if anyone has any pointers or knows of anyone else who could help please let me know

Thanks

Bob

Bob Atchley

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Feb 9, 2020, 6:29:21 AM2/9/20

to weewx-user

The good news is I have reverse engineered the USB interface to this weather station, and while there are still nuances and additional commands to be understood I have a test program running reliably.

As there has been no interest here I'll probably write my own solution for this rather than go down the weewx route, but once polished I'll make my solution available (but I could still be persuaded to go down the weewx route).

The only other weather station interface that I am familiar with is the ws2300 - compared to that this weather station interface is orders of magnitude simpler and more reliable

Not expecting any responses, but if there is any interest let me know

Bob

Thomas Keffer

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Feb 9, 2020, 7:28:22 AM2/9/20

to weewx-user

Bob, no reason not to use WeeWX --- just write a driver. At their simplest, you need implement only 3 functions, two of which are trivial. The hard one is genLoopPackets(), whose job is to return Python dictionaries holding any data returned by your station. See the section Porting to new hardware in the Customizing Guide for details.

Once you have a driver, you can leverage everything else WeeWX has to offer --- archiving, reporting, uploading, HTML generation, etc.

-tk

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Janne Prokkola

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Feb 23, 2020, 1:59:18 PM2/23/20

to weewx-user

I have just purchased a Ventus W835 which is similar as Bresser 6 in 1. If you can get your weather station work with weewx I would like to know how you do it.

Janne

Bob Atchley

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Mar 15, 2020, 12:46:05 PM3/15/20

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Hi Janne,

I have uploaded the new driver for the 6 in 1 weather stations with PC connected consoles:

Youshiko YC9388

Bresser PC 6 in 1

Garni 935PC

Ventus W835

If you go to the weewx wiki and search for the ws6in1 driver and follow the link hopefully the readme.txt will give you enough information to get going.

I have over a weeks data and had no issues so far.

I'm afraid this very much a beta release. Please feedback any issues.

I should probably add that all my testing has been with weewx 4.0.0b13, but I have no reason to think it won't work with weewx version 3.9.2

Regards Bob

Janne Prokkola

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Mar 22, 2020, 6:01:58 AM3/22/20

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Hi Bob

great news.

I downloaded your driver. Now I have a connection between Ventus and weewx! I have just tested it and it really works. Now I start to learn the weewx. Ie. I wonder if its possibel to download history data from ws.

Few minor remarks on you readme.txt.

1)

I run weewx on linux mint. I couldn't run "pip install crcmod". I installed it with synaptic packet installer.

2)

wee_extension --install weewx-ws6in1.zip

The driver is weewx-ws6ini-master.zip.

Thanx again

Janne!

Bob Atchley

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Mar 22, 2020, 7:35:25 AM3/22/20

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Hi Janne,

So pleased its working!! Thanks for the remarks, I've added a note in the readme.txt about installing python-pip/python3-pip. The driver really is weewx-ws6in1.zip you must have renamed it somehow when you downloaded it (?)

The history is an interesting question. I bought my station and physically installed it in early January so I have over 2 months of data available (though recorded at 30 minute intervals) before I got the weewx driver working.

I can produce a function that downloads the history, but I'm not sure about the mechanism to get this into the weewx database and processed (and in fact I have 16 years worth of ws2300 data in a non-weewx database that it would be nice to import to have it all in one place)

Regards

Bob

Janne Prokkola

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Mar 22, 2020, 1:40:29 PM3/22/20

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hi Bob

when I download the driver from GiHub

----

2) download the driver

wget -O weewx-ws6in1.zip https://github.com/bobatchley/weewx-ws6in1/archive/master.zip
---
my Linux convert the name to "... -master.zip" 

To clarify, I installed the crcmod, not the python-pip with synaptic.

I also have about 8 years data saved from another wstation. This station will be installed to our summer cottage, and it is offgrid sometimes. So, I'd like to import history data from both sources. Today I have tried to find reasonable workaround with wee_import from csv-file without any success. I get some stupid error messages. 

regards
Janne

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