RTL_433 with watchman oil tank

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stuiow
Posts: 191
Joined: Saturday 18 April 2015 18:56
Target OS: Raspberry Pi
Domoticz version: 3.6857
Location: Isle of Wight, United Kingdom.
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RTL_433 with watchman oil tank

Post by stuiow » Wednesday 05 October 2016 16:10

Hi all,
Just install a TV adapter and got my adapter setup and started the below in a ssh session:-
/home/pi/rtl_433# rtl_433 -R 42

It then states teh following:- (all good)
Registering protocol [1] "Watchman Sonic / Apollo Ultrasonic / Beckett Rocket oil tank monitor"
Registered 1 out of 68 device decoding protcols
Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN: 00000001

Using device 0: Generic RTL2832U OEM
Found Rafael Micro R820T tuner
Exact sample rate is: 250000.000414 Hz
[R82XX] PLL not locked!
Sample rate set to 250000.
Bit detection level set to 0 (Auto).
Tuner gain set to Auto.
Reading samples in async mode...
Tuned to 433920000 Hz.

My question's.
1. if i now close this ssh window (putty on my windows PC), i presume this will then stop the adapter monitor the frequency and stop logging the data?

2. My next step is get Domoticz to grab that data from rtl-$33, how do i achieve that? I presume the link below is the correct way of doing that, assuming the answer to question is not yes.

http://www.domoticz.com/wiki/Lua_-_Oil_ ... ticz_Setup

Cheers
Now setup on a RPI3.
Also using Evohome HGI80, RFXTRX433E and a Aeotec Gen5 stick. Mainly a Gen5 Z-Wave system.
My weather (Davis vantage Pro2) data is obtained by weatherunderground
Now collecting rtl_433 data from Apollo Ultrasonic meter

kevster
Posts: 16
Joined: Wednesday 07 December 2016 0:14
Target OS: Raspberry Pi
Domoticz version: Beta
Location: UK
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Re: RTL_433 with watchman oil tank

Post by kevster » Monday 20 February 2017 23:46

I'm about to do the same..... and am at this place.

Did you manage to find out how to capture the rtl_433 output to send to the virtual sensor ?

stuiow
Posts: 191
Joined: Saturday 18 April 2015 18:56
Target OS: Raspberry Pi
Domoticz version: 3.6857
Location: Isle of Wight, United Kingdom.
Contact:

Re: RTL_433 with watchman oil tank

Post by stuiow » Tuesday 21 February 2017 0:38

I stopped working on this when i couldn't find a solution on this.
I'm sure there is, but without anyone offering any guidance, i gave up.
I was also worried about the increase in CPU and temperature that running RTL_433 did to my RPI2.
But in reality, it was only a 5% increase in CPU all the time, it probably isn't a great strain.

I was holding out until i got a RPI3 to run Domoticz and RTL_433 to see how that coped.
Now setup on a RPI3.
Also using Evohome HGI80, RFXTRX433E and a Aeotec Gen5 stick. Mainly a Gen5 Z-Wave system.
My weather (Davis vantage Pro2) data is obtained by weatherunderground
Now collecting rtl_433 data from Apollo Ultrasonic meter

rowanbradley
Posts: 33
Joined: Wednesday 07 March 2018 21:28
Target OS: Windows
Domoticz version: 3.9025
Location: Newmarket, Suffolk, UK
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Re: RTL_433 with watchman oil tank

Post by rowanbradley » Thursday 29 March 2018 13:03

I have joined this thread a long time later. I too want to monitor my oil tank level. I have an Apollo ultrasonic sensor mounted on the tank with the matching Apollo display in the house, but now I want to monitor within Domoticz running on a Windows PC. The beginning of this thread doesn't explain how to get started, what an RTL433 is or how to connect it, whether it can be used with a PC rather than a Raspberry Pi etc. Please can someone explain what is the best way of reading the oil tank level within Domoticz?

I have an RTL-SDR which I can possibly use. Or I can buy the RF receiver module like the one that is used within the Apollo receiver, and interface this somehow to the PC. I don't mind building a bit of electronics if this is necessary.

Thanks - Rowan

kevster
Posts: 16
Joined: Wednesday 07 December 2016 0:14
Target OS: Raspberry Pi
Domoticz version: Beta
Location: UK
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Re: RTL_433 with watchman oil tank

Post by kevster » Wednesday 18 April 2018 0:33

I did some work on this and finally got round to pushing out some info.

See my GitHub project at https://github.com/kevsterd/sdr2domo

This uses a container on my Pi running Domoticz to read the RTL433 SDR and push the values from the tank sensors (I have three) into Domotics. Using some LUA I then update virtual outputs to show values.

Need to correct the Wiki as well as there is some issues in that write up.

HTH

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