OTGW and Orange Pi Zero one device.

This Forum is about the Opentherm gateway (OTG) from Schelte

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Re: OTGW and Orange Pi Zero one device.

Postby paulockenden » Tue Oct 09, 2018 9:44 am

I shouldn't have used port 8080. There's a remote access port listed in the OTGW config screens.

I've now disabled it though because I read some posts about Domoticz killing OTGW by bombarding it with requests. I don't want that to happen here.

P.
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Re: OTGW and Orange Pi Zero one device.

Postby Bororo » Thu Oct 11, 2018 4:27 pm

hi cyril, i'm using otgw+opi0 several months and i'm very happy with performance.
the only compliant is about otmonitor which hangs frequently and I cannot make it working until I reboot whole device.
is there any way (on armbian) how to monitor otmonitor-ahf and restart it when it stops working?

another issue i have is SSH related - my connection to armbian keeps dropping all the time. sometimes every 3-6 sec. i'm geting message: PuTTy Fatal error: Network error: Software caused connection error. anybody with same issue? is it necessary do make any special tweak on ssh connection?
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Re: OTGW and Orange Pi Zero one device.

Postby cyril » Thu Oct 18, 2018 8:16 pm

To check otmonitor is working you can periodically run script like this:
#!/bin/sh
TEST_LOG="$(($(date +%s) - $(date -r /etc/otmonitor/otlog.txt +%s)))"
if [ "$TEST_LOG" -lt 300 ]; then
logger "LOG OK"
else
logger "LOG IS DEAD"
reboot && exit
fi
It reboots OPI if otmonitor log is not changing longer 300 seconds.
About ssh access: I guess you use wireless connection to OPI, because I never faicing with loss connection with OPI. Problem is "Onboard wireless module (XR819) has poor software support so wireless connection issues are expected" (https://www.armbian.com/orange-pi-zero/#kernels-archive) If you want to use wireless, you can download old Armbian image, which has good support of wireless.
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Re: OTGW and Orange Pi Zero one device.

Postby takezo » Fri Dec 14, 2018 12:54 am

Hi there

I have boiler with electronic made by tiemme company here link

http://www.tiemmeelettronica.com/es/producto/mb250-2/

My board is model mb250

Do you know if I could use your board in order to connect and get info and programming of my boiler?

Currently I have one orange pi zero so is just to add your board.

I loo forward to hearing from you soon

Thanks!!
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Re: OTGW and Orange Pi Zero one device.

Postby cyril » Sat Dec 15, 2018 10:50 am

Obviuosly, your boiler is not in the equipment matrix http://otgw.tclcode.com/matrix.cgi
Your boiler have Opentherm? If yes, you can try to use OTGW board, but nobody can promise what it will work.
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Re: OTGW and Orange Pi Zero one device.

Postby takezo » Sat Dec 15, 2018 12:58 pm

cyril wrote:Obviuosly, your boiler is not in the equipment matrix http://otgw.tclcode.com/matrix.cgi
Your boiler have Opentherm? If yes, you can try to use OTGW board, but nobody can promise what it will work.


hi @cyril, thank you so much for your support.
at this point the question is, how can i know if my boiler have Opentherm..?
i have cunrrenly connected to my boiler a panel control model K700, here you have the link;

http://www.tiemmeelettronica.com/en/product/k700/

and here more info of board, manual link:

girolamicaminetti.it/contrib/uploads/Ma ... 28kW-1.pdf

here its the scheme of connection with boiler and external lcd panel control, i dont know if knowing this connectivity and codes to setup the boiler you can know if works or not with opentherm...

if i connect the those pins of serial port to my orange pi through usb what can i get or see..? is there any easey and quick way to check it..?

thanks for your support!


girolamicaminetti.it/contrib/uploads/Ma ... 28kW-1.pdf

info: panel control lcd is conencted to board of boiler through something that seems to be a serial port and has 4 cables with colors: red, yellow , black and green.
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Re: OTGW and Orange Pi Zero one device.

Postby yjb » Sat Dec 15, 2018 1:10 pm

HI,

I did a search on that site for "opentherm" without any results, so I guess its a proprietary protocol.

The only way to know this for sure is to ask the vendor, maybe its on their roadmap
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Re: OTGW and Orange Pi Zero one device.

Postby cyril » Sat Dec 15, 2018 1:21 pm

What is boiler name?
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Re: OTGW and Orange Pi Zero one device.

Postby takezo » Sun Dec 16, 2018 12:02 pm

the boiler is burnit plb but has electronic from Tiemme , here the link with the board installed:

http://www.tiemmeelettronica.com/en/product/mb250/

so, if i take the risk to buy the board cooking for orange pi zero what i can expect..?
any other options, what do you think?
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Re: OTGW and Orange Pi Zero one device.

Postby cyril » Mon Dec 17, 2018 4:47 pm

In worst case, you can damage your boiler.
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Re: OTGW and Orange Pi Zero one device.

Postby marcelr » Tue Dec 25, 2018 2:25 pm

For people who, like me, bought an H5 OrangePi, I got otmonitor working on this device today, in native aarch64 mode:

https://www.domoticaforum.eu/viewtopic. ... 244#p88607
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