OTGW and Orange Pi Zero one device.

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

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paulockenden
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Re: OTGW and Orange Pi Zero one device.

Post by paulockenden »

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

Post by Bororo »

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?
cyril
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Re: OTGW and Orange Pi Zero one device.

Post by cyril »

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

Post by takezo »

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

Post by cyril »

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

Post by takezo »

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

Post by yjb »

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
cyril
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Re: OTGW and Orange Pi Zero one device.

Post by cyril »

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

Post by takezo »

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?
cyril
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Re: OTGW and Orange Pi Zero one device.

Post by cyril »

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

Post by marcelr »

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

viewtopic.php?f=75&t=12244#p88607
cyril
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Re: OTGW and Orange Pi Zero one device.

Post by cyril »

For those, who considering for use this expansion board. Because of chip shortages Orange Pi Zero H2+ and LTS temporarily unavailable. Please, choose substitute Orange Pi Zero H3 board.
seb101
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Re: OTGW and Orange Pi Zero one device.

Post by seb101 »

Hi Cyril - very pleased with the board you sent me! Working perfectly with the Orange Pi Zero H3.

Do you have the STL for the enclosure you 3D printed? Can you share it?

I installed the latest armbian (focal) and copied your service script over from the image you provided, then updated otmonitor-ahf to latest 5.1 and it's working perfectly, also updated the gateway hex file to the latest (5.1) which also worked perfectly.

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

Post by cyril »

Hi, Seb! But it's not 3D printed. It's OPIZ enclosure from manufacturer:
https://aliexpress.ru/item/32781094571. ... 4aa6hxAPBQ
ZHNovell
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Re: OTGW and Orange Pi Zero one device.

Post by ZHNovell »

Hello everyone, what is the blue part near the four green terminal blocks? If it is a capacitor, what is the value? Or tell me the marking of the part. Thank you.

Всем привет, что за синяя деталь возле четырех контактной колодки зелёной? Если это конденсатор то какой номинал? Или маркировку детали подскажите. Спасибо.
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