[120] opentherm gateway

For OpenTherm-gateway related questions in Domoticz
CaptainSlow
Posts: 73
Joined: Thursday 08 December 2016 22:07
Target OS: Raspberry Pi
Domoticz version: Beta
Location: Bussum
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Re: [120] opentherm gateway

Postby CaptainSlow » Monday 09 January 2017 19:10

With the Remeha Tzerra and the Kiwi bought OTGW with esp8266 wifi to serial bridge the only value for that works without errors is VR=1. All the other values, especially the higher ones gave me all but error 03's....
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Raspberry PI 3, Domoticz Beta, Open Therm Gateway with ESP wifi-bridge, Milight Ibox(V6), Wundermap

rjblake
Posts: 55
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Re: [120] opentherm gateway

Postby rjblake » Monday 09 January 2017 23:43

CaptainSlow wrote:With the Remeha Tzerra and the Kiwi bought OTGW with esp8266 wifi to serial bridge the only value for that works without errors is VR=1. All the other values, especially the higher ones gave me all but error 03's....


Did you use a higher rated transformer and change out the 7805 for the Recom DC/DC converter? If not, that may be the reason. The parts needed, with Conrad.nl part number are:

RECOM R-78E5.0-0.5 DC/DC-converter, print 24 V/DC 5 V/DC 500 mA (part 157954 - 89)
EI 30/15,5 printtransformator VB 2 VA Primair: Secundair: 2 VA VB 2,0/1/15 Block (part number 710564 - 89)

CaptainSlow
Posts: 73
Joined: Thursday 08 December 2016 22:07
Target OS: Raspberry Pi
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Re: [120] opentherm gateway

Postby CaptainSlow » Tuesday 10 January 2017 6:45

rjblake wrote:
CaptainSlow wrote:With the Remeha Tzerra and the Kiwi bought OTGW with esp8266 wifi to serial bridge the only value for that works without errors is VR=1. All the other values, especially the higher ones gave me all but error 03's....


Did you use a higher rated transformer and change out the 7805 for the Recom DC/DC converter? If not, that may be the reason. The parts needed, with Conrad.nl part number are:

RECOM R-78E5.0-0.5 DC/DC-converter, print 24 V/DC 5 V/DC 500 mA (part 157954 - 89)
EI 30/15,5 printtransformator VB 2 VA Primair: Secundair: 2 VA VB 2,0/1/15 Block (part number 710564 - 89)


THX... 8-) 8-) ...I was thinking about that already and I read the posts about it. Thought I'd give it a try with the one that came with the package. The transformer is hottish but not bloody hot I would say. I might need to change it to the heavier one and swapping the 7805 to DC/DC converter.
I don't get error messages yet and the connection seems stable. Had 2 drops in 2 days something like that but in the end I probably need to change it anyway :D :D
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Raspberry PI 3, Domoticz Beta, Open Therm Gateway with ESP wifi-bridge, Milight Ibox(V6), Wundermap

Domotibart
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Joined: Tuesday 06 December 2016 19:53
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Re: [120] opentherm gateway

Postby Domotibart » Sunday 19 February 2017 4:09

I have been using the opentherm gateway with usb connection for over a year with absolutely no issues.
Yesterday i wanted to change the USB connection to IP using a ESP8266. Everything went smooth but now i have the same issues that is mentioned by some other members.
I can connect to the esp with OTmonitor and read all data, but when i connect domoticz to the ESP8266 all i get is numbers;
2017-02-19 03:08:09.301 OTGW: BD0012B00

2017-02-19 03:08:09.302 OTGW: T101814A7

2017-02-19 03:08:09.302 OTGW: BD01814A7

2017-02-19 03:08:09.302 OTGW: T80190000

2017-02-19 03:08:10.305 OTGW: BC0192780

Anyone found a solution for this?

rjblake
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Re: [120] opentherm gateway

Postby rjblake » Monday 20 February 2017 23:09

Domotibart wrote:I have been using the opentherm gateway with usb connection for over a year with absolutely no issues.
Yesterday i wanted to change the USB connection to IP using a ESP8266. Everything went smooth but now i have the same issues that is mentioned by some other members.
I can connect to the esp with OTmonitor and read all data, but when i connect domoticz to the ESP8266 all i get is numbers;
2017-02-19 03:08:09.301 OTGW: BD0012B00

2017-02-19 03:08:09.302 OTGW: T101814A7

2017-02-19 03:08:09.302 OTGW: BD01814A7

2017-02-19 03:08:09.302 OTGW: T80190000

2017-02-19 03:08:10.305 OTGW: BC0192780

Anyone found a solution for this?


Yup - you need to reset the OTGW, or issue a PS=1 command to the OTGW. Either short the two RST pins briefly or connect a momentary switch to them. If you have one of the ESP8266 GPIO's connected to the RST and are using ESP-Link, you can also reset remotely using the web front end

DaWauZ
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Re: [120] opentherm gateway

Postby DaWauZ » Thursday 23 February 2017 17:10

Hello,

I trying to get a otgw on domoticz.
I have a otgw and added a ESP-12. The ESP-12 gets power from usb cable, and I connected the tx on rx and vice versa on the otgw.
When I add a OTGW LAN in domoticz, no sensors being added.
In the log files I says it is connected. (ip address + port 80)

I have set the ESP-12 with a ttl cable in STA mode, I can see on my router it has an IP-address,then I did this:

AT+CIPMUX=1
This initiates the server for a Webserver.
Next we start the server at HTTP port 80 using command ,
AT+CIPSERVER=1,80

I dont know exactly what to do now?

I did not do the ESP-LINK thing, is that neccesary? I thought, when the ESP got an IP, it can be connected to the OTGW.
Though when I have the ESP connected to my serial console and do a web request I also see that on the terminal.
Raspberry Pi 2 model B with domoticz
OMV NAS installed on thin client HP T610
Openelec Kodi Mediaplayer on thin client HP T520 (and with multiboot windows 10)


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