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Acurite sensor pack
#1

My mate has just got a Acurite Wx station that goes direct to Wundergound and they are cheap also have UV and solar sensors. But I much prefer Werk's weatherduino. I was hoping to maybe just use the sensor pack which you can buy for about 90 bucks aussie. It transmits on 433 mhz but not sure of the protocol it uses but if we can get our wireless RX modules we use on the weatherduino to receive the data from this then you would just need to know the protocol and the weatherduino could use this. Has anyone ever played around or looked into this?

Werk?  have you ever played with similar...I think its actually made by FO


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#2

Hi,

Yes, I believe that station is made by Fine Offset and the Wireless Protocol of the earlier stations (WH-1080, 3080, etc.) is quite well-known, with an update interval of 48 seconds (60 seconds for Solar data).  However, the User Manual for the "HP-1000" looks very similar to the station you've shown, but has an update interval of 16 seconds.  Also, I notice that the diagrams show a "UV Sensor" but there is no mention of that in the Specification or Logging File format.  I did come across this Wireless Protocol Code but have no way of knowing if it's relevant.  It definitely isn't for the WH x080s and appears to use update intervals of 18, 36 and 60 seconds.  

(06-01-2018, 06:31)markkkk42 Wrote:  It transmits on 433 mhz but not sure of the protocol it uses but if we can get our wireless RX modules we use on the weatherduino to receive the data from this then you would just need to know the protocol and the weatherduino could use this.

That might be rather optimistic.  AFAIK, Weatherduino doesn't work at the WP level, it uses a higher level Arduino "Library" routine, originally called "Virtualwire".  Werk recently reported that  "I noted a fairly improvement on the RF performance since using the RadioHead library" so I was myself going to ask if that is a change to the Wireless Protocol, or only to the "decoding" software.

For "historical" reasons, Weatherduino does support the "Auriol" Wireless Protocol, so in principle it could support "other"  WPs, but I think that work would need to be done by other "interested parties" and not by Werk.  Wink

Sometimes the FO stations appear to be sold at very low prices in Australia, and/or have you found a source of the sensor pack separately (i.e. without the Console)?  Over here, the "HP-1000" stations seem quite expensive at around 300 Euros/Pounds.

Cheers,  Alan.
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#3

(07-01-2018, 12:09)AllyCat Wrote:  For "historical" reasons, Weatherduino does support the "Auriol" Wireless Protocol, so in principle it could support "other"  WPs, but I think that work would need to be done by other "interested parties" and not by Werk.  Wink

Thank you Alan by having said that, that's exactly what I think.

Quote:Werk recently reported that "I noted a fairly improvement on the RF performance since using the RadioHead library" so I was myself going to ask if that is a change to the Wireless Protocol, or only to the "decoding" software.

The only change was the library. The change from the Virtualwire to the RadioHead was happen due to some things that I intend to do, and those things couldn't be done with the Virtualwire.
Only after I changed I noticed on my system that the RF Eficiency (which is only a number which can give us a indication of the lost packets) of all TX units raised a little.

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#4

Thanks for the responses and info. I might grab one and see what I can glean from the sensor pack by way of monitoring the data stream. They are cheap so its worth a go. 

https://www.ebay.com.au/itm/Maxkon-WIFI-...2749.l2649

https://www.acurite.com/5-in-1-weather-s...004rm.html



Mark
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#5

OOps  this is the one with the extra sensors

https://www.ebay.com.au/itm/PanTech-Weat...0005.m1851
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#6

Hi,

The first two links appear to be for different stations and might not even be 434 MHz (Wi-Fi uses 2.4 GHz) or from the same manufacturer.  IMHO, the "Solar Charging" in previous (2-cell) FO transmitters was basically useless, because the (necessary) 1.5 volts "Rechargeable Alkaline" is a rubbish cell technology.  Worth checking if these newer 3-cell transmitters can use NiMH rechargeables.

It's much easier to "hack" a Wireless Protocol if you know the exact data (numbers) which are being transmitted.  So having the matching Console could be of great benefit, but adds considerably to the cost.  However, if these stations follow previous FO designs, the data will be pure binary (not BCD)  with a CRC (not checksum) at the end.

Cheers,  Alan.
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