<div dir="ltr">Hi Damon<div><br></div><div>Here's the veroboard version:</div><div><br></div><div><a href="http://www.susa.net/wordpress/2012/06/raspberry-pi-relay-using-gpio/">http://www.susa.net/wordpress/2012/06/raspberry-pi-relay-using-gpio/</a><br>
</div><div><br></div><div>I'd guess you have suitable transistors, a diode, resistor. Then you'd only need to source the 5V 240AC relay but unfortunately Maplin doesn't appear to have one. Think that Stuart's suggestion is probably a better bet.</div>
<div><br></div><div>M</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On 29 January 2014 19:38, <span dir="ltr"><<a href="mailto:opentrv-dev-request@lists.opentrv.org.uk" target="_blank">opentrv-dev-request@lists.opentrv.org.uk</a>></span> wrote:<br>
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<br>Today's Topics:<br>
<br>
1. Vaillant boiler issue (Damon Hart-Davis)<br>
2. Re: Vaillant boiler issue (Stuart Poulton)<br>
3. Re: Vaillant boiler issue (Damon Hart-Davis)<br>
4. Re: Vaillant boiler issue (Stuart Poulton)<br>
5. Re: Vaillant boiler issue (Damon Hart-Davis)<br>
6. Re: Vaillant boiler issue (Stuart Poulton)<br>
<br><br>---------- Forwarded message ----------<br>From: Damon Hart-Davis <<a href="mailto:dhd@exnet.com">dhd@exnet.com</a>><br>To: Closed list for developer discussions <<a href="mailto:opentrv-dev@lists.opentrv.org.uk">opentrv-dev@lists.opentrv.org.uk</a>><br>
Cc: <br>Date: Wed, 29 Jan 2014 17:15:02 +0000<br>Subject: [OpenTRV-dev] Vaillant boiler issue<br>Hi,<br>
<br>
Had a chat with Vaillent tech support this afternoon and the newer models of the ecoTEC plus 837 are different to the old in that the new one is not presenting a real load 240V, ie is fairly high impedance purely for sensing, and thus will probably NOT work property with an SSR (or indeed anything self-powered for a start).<br>
<br>
So, I have to find an alternative solution that should work for the problematic install. It might even have to be a little logic relay board.<br>
<br>
Small neat efficent 240VAC/DC 3V-in relay modules (mains powered) that I can sling in one of our SSR boxes (for example) would be welcome, and can then be used as an alternative in any similar situation. We should see what OEM is using.<br>
<br>
Rgds<br>
<br>
Damon<br>
<br>
<br>
<br>
<br><br>---------- Forwarded message ----------<br>From: Stuart Poulton <<a href="mailto:stuart@poulton.org.uk">stuart@poulton.org.uk</a>><br>To: Closed list for developer discussions <<a href="mailto:opentrv-dev@lists.opentrv.org.uk">opentrv-dev@lists.opentrv.org.uk</a>><br>
Cc: <br>Date: Wed, 29 Jan 2014 17:34:00 +0000<br>Subject: Re: [OpenTRV-dev] Vaillant boiler issue<br><div style="word-wrap:break-word">How about this from a nice UK based company<div><br></div><div><a href="http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/" target="_blank">http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/</a></div>
<div><br></div><div>Stuart</div><div><br><div><div>On 29 Jan 2014, at 17:15, Damon Hart-Davis wrote:</div><br><blockquote type="cite"><div>Hi,<br><br>Had a chat with Vaillent tech support this afternoon and the newer models of the ecoTEC plus 837 are different to the old in that the new one is not presenting a real load 240V, ie is fairly high impedance purely for sensing, and thus will probably NOT work property with an SSR (or indeed anything self-powered for a start).<br>
<br>So, I have to find an alternative solution that should work for the problematic install. It might even have to be a little logic relay board.<br><br>Small neat efficent 240VAC/DC 3V-in relay modules (mains powered) that I can sling in one of our SSR boxes (for example) would be welcome, and can then be used as an alternative in any similar situation. We should see what OEM is using.<br>
<br>Rgds<br><br>Damon<br><br><br>_______________________________________________<br>OpenTRV-dev mailing list<br><a href="mailto:OpenTRV-dev@lists.opentrv.org.uk" target="_blank">OpenTRV-dev@lists.opentrv.org.uk</a><br><a href="http://lists.opentrv.org.uk/listinfo/opentrv-dev" target="_blank">http://lists.opentrv.org.uk/listinfo/opentrv-dev</a><br>
</div></blockquote></div><br></div></div><br><br>---------- Forwarded message ----------<br>From: Damon Hart-Davis <<a href="mailto:dhd@exnet.com">dhd@exnet.com</a>><br>To: Closed list for developer discussions <<a href="mailto:opentrv-dev@lists.opentrv.org.uk">opentrv-dev@lists.opentrv.org.uk</a>><br>
Cc: <br>Date: Wed, 29 Jan 2014 18:29:49 +0000<br>Subject: Re: [OpenTRV-dev] Vaillant boiler issue<br>That’s definitely on the right lines, thanks!<br>
<br>
Though I’d prefer not to have to assemble anything (time is pretty tight) or have another power supply, though again that can probably be worked around.<br>
<br>
Thanks again!<br>
<br>
Rgds<br>
<br>
Damon<br>
<br>
On 29 Jan 2014, at 17:34, Stuart Poulton <<a href="mailto:stuart@poulton.org.uk">stuart@poulton.org.uk</a>> wrote:<br>
<br>
> How about this from a nice UK based company<br>
><br>
> <a href="http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/" target="_blank">http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/</a><br>
><br>
> Stuart<br>
><br>
> On 29 Jan 2014, at 17:15, Damon Hart-Davis wrote:<br>
><br>
>> Hi,<br>
>><br>
>> Had a chat with Vaillent tech support this afternoon and the newer models of the ecoTEC plus 837 are different to the old in that the new one is not presenting a real load 240V, ie is fairly high impedance purely for sensing, and thus will probably NOT work property with an SSR (or indeed anything self-powered for a start).<br>
>><br>
>> So, I have to find an alternative solution that should work for the problematic install. It might even have to be a little logic relay board.<br>
>><br>
>> Small neat efficent 240VAC/DC 3V-in relay modules (mains powered) that I can sling in one of our SSR boxes (for example) would be welcome, and can then be used as an alternative in any similar situation. We should see what OEM is using.<br>
>><br>
>> Rgds<br>
>><br>
>> Damon<br>
>><br>
>><br>
>> _______________________________________________<br>
>> OpenTRV-dev mailing list<br>
>> <a href="mailto:OpenTRV-dev@lists.opentrv.org.uk">OpenTRV-dev@lists.opentrv.org.uk</a><br>
>> <a href="http://lists.opentrv.org.uk/listinfo/opentrv-dev" target="_blank">http://lists.opentrv.org.uk/listinfo/opentrv-dev</a><br>
><br>
> _______________________________________________<br>
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<br>
<br>
<br><br>---------- Forwarded message ----------<br>From: Stuart Poulton <<a href="mailto:stuart@poulton.org.uk">stuart@poulton.org.uk</a>><br>To: Closed list for developer discussions <<a href="mailto:opentrv-dev@lists.opentrv.org.uk">opentrv-dev@lists.opentrv.org.uk</a>><br>
Cc: <br>Date: Wed, 29 Jan 2014 18:33:24 +0000<br>Subject: Re: [OpenTRV-dev] Vaillant boiler issue<br>Damon,<br>
<br>
Why do you need an additional PSU ?<br>
<br>
I'm happy to pitch in and solder them together, just get ciseco to ship them to me :) I'll ship them to you, how many are you talking ?<br>
<br>
Stuart<br>
<br>
<br>
On 29 Jan 2014, at 18:29, Damon Hart-Davis wrote:<br>
<br>
> That’s definitely on the right lines, thanks!<br>
><br>
> Though I’d prefer not to have to assemble anything (time is pretty tight) or have another power supply, though again that can probably be worked around.<br>
><br>
> Thanks again!<br>
><br>
> Rgds<br>
><br>
> Damon<br>
><br>
> On 29 Jan 2014, at 17:34, Stuart Poulton <<a href="mailto:stuart@poulton.org.uk">stuart@poulton.org.uk</a>> wrote:<br>
><br>
>> How about this from a nice UK based company<br>
>><br>
>> <a href="http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/" target="_blank">http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/</a><br>
>><br>
>> Stuart<br>
>><br>
>> On 29 Jan 2014, at 17:15, Damon Hart-Davis wrote:<br>
>><br>
>>> Hi,<br>
>>><br>
>>> Had a chat with Vaillent tech support this afternoon and the newer models of the ecoTEC plus 837 are different to the old in that the new one is not presenting a real load 240V, ie is fairly high impedance purely for sensing, and thus will probably NOT work property with an SSR (or indeed anything self-powered for a start).<br>
>>><br>
>>> So, I have to find an alternative solution that should work for the problematic install. It might even have to be a little logic relay board.<br>
>>><br>
>>> Small neat efficent 240VAC/DC 3V-in relay modules (mains powered) that I can sling in one of our SSR boxes (for example) would be welcome, and can then be used as an alternative in any similar situation. We should see what OEM is using.<br>
>>><br>
>>> Rgds<br>
>>><br>
>>> Damon<br>
>>><br>
>>><br>
>>> _______________________________________________<br>
>>> OpenTRV-dev mailing list<br>
>>> <a href="mailto:OpenTRV-dev@lists.opentrv.org.uk">OpenTRV-dev@lists.opentrv.org.uk</a><br>
>>> <a href="http://lists.opentrv.org.uk/listinfo/opentrv-dev" target="_blank">http://lists.opentrv.org.uk/listinfo/opentrv-dev</a><br>
>><br>
>> _______________________________________________<br>
>> OpenTRV-dev mailing list<br>
>> <a href="mailto:OpenTRV-dev@lists.opentrv.org.uk">OpenTRV-dev@lists.opentrv.org.uk</a><br>
>> <a href="http://lists.opentrv.org.uk/listinfo/opentrv-dev" target="_blank">http://lists.opentrv.org.uk/listinfo/opentrv-dev</a><br>
><br>
> _______________________________________________<br>
> OpenTRV-dev mailing list<br>
> <a href="mailto:OpenTRV-dev@lists.opentrv.org.uk">OpenTRV-dev@lists.opentrv.org.uk</a><br>
> <a href="http://lists.opentrv.org.uk/listinfo/opentrv-dev" target="_blank">http://lists.opentrv.org.uk/listinfo/opentrv-dev</a><br>
<br>
<br>
<br><br>---------- Forwarded message ----------<br>From: Damon Hart-Davis <<a href="mailto:dhd@exnet.com">dhd@exnet.com</a>><br>To: Closed list for developer discussions <<a href="mailto:opentrv-dev@lists.opentrv.org.uk">opentrv-dev@lists.opentrv.org.uk</a>><br>
Cc: <br>Date: Wed, 29 Jan 2014 18:54:43 +0000<br>Subject: Re: [OpenTRV-dev] Vaillant boiler issue<br>Hi,<br>
<br>
I really need to try to get one done on Monday-ish and have one in reserve, and I’m in Brussels at FOSDEM all weekend.<br>
<br>
The board needs a 12V supply. I may not have a suitable one to hand, so I’ll need to get one, attach to the householder’s rather crowded wall, and plug in, such a supply. More mess and complication!<br>
<br>
Anyhow I’ll try to order a couple of these boards now and sort the rest as a I can.<br>
<br>
Rgds<br>
<br>
Damon<br>
<br>
<br>
On 29 Jan 2014, at 18:33, Stuart Poulton <<a href="mailto:stuart@poulton.org.uk">stuart@poulton.org.uk</a>> wrote:<br>
<br>
> Damon,<br>
><br>
> Why do you need an additional PSU ?<br>
><br>
> I'm happy to pitch in and solder them together, just get ciseco to ship them to me :) I'll ship them to you, how many are you talking ?<br>
><br>
> Stuart<br>
><br>
><br>
> On 29 Jan 2014, at 18:29, Damon Hart-Davis wrote:<br>
><br>
>> That’s definitely on the right lines, thanks!<br>
>><br>
>> Though I’d prefer not to have to assemble anything (time is pretty tight) or have another power supply, though again that can probably be worked around.<br>
>><br>
>> Thanks again!<br>
>><br>
>> Rgds<br>
>><br>
>> Damon<br>
>><br>
>> On 29 Jan 2014, at 17:34, Stuart Poulton <<a href="mailto:stuart@poulton.org.uk">stuart@poulton.org.uk</a>> wrote:<br>
>><br>
>>> How about this from a nice UK based company<br>
>>><br>
>>> <a href="http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/" target="_blank">http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/</a><br>
>>><br>
>>> Stuart<br>
>>><br>
>>> On 29 Jan 2014, at 17:15, Damon Hart-Davis wrote:<br>
>>><br>
>>>> Hi,<br>
>>>><br>
>>>> Had a chat with Vaillent tech support this afternoon and the newer models of the ecoTEC plus 837 are different to the old in that the new one is not presenting a real load 240V, ie is fairly high impedance purely for sensing, and thus will probably NOT work property with an SSR (or indeed anything self-powered for a start).<br>
>>>><br>
>>>> So, I have to find an alternative solution that should work for the problematic install. It might even have to be a little logic relay board.<br>
>>>><br>
>>>> Small neat efficent 240VAC/DC 3V-in relay modules (mains powered) that I can sling in one of our SSR boxes (for example) would be welcome, and can then be used as an alternative in any similar situation. We should see what OEM is using.<br>
>>>><br>
>>>> Rgds<br>
>>>><br>
>>>> Damon<br>
>>>><br>
>>>><br>
>>>> _______________________________________________<br>
>>>> OpenTRV-dev mailing list<br>
>>>> <a href="mailto:OpenTRV-dev@lists.opentrv.org.uk">OpenTRV-dev@lists.opentrv.org.uk</a><br>
>>>> <a href="http://lists.opentrv.org.uk/listinfo/opentrv-dev" target="_blank">http://lists.opentrv.org.uk/listinfo/opentrv-dev</a><br>
>>><br>
>>> _______________________________________________<br>
>>> OpenTRV-dev mailing list<br>
>>> <a href="mailto:OpenTRV-dev@lists.opentrv.org.uk">OpenTRV-dev@lists.opentrv.org.uk</a><br>
>>> <a href="http://lists.opentrv.org.uk/listinfo/opentrv-dev" target="_blank">http://lists.opentrv.org.uk/listinfo/opentrv-dev</a><br>
>><br>
>> _______________________________________________<br>
>> OpenTRV-dev mailing list<br>
>> <a href="mailto:OpenTRV-dev@lists.opentrv.org.uk">OpenTRV-dev@lists.opentrv.org.uk</a><br>
>> <a href="http://lists.opentrv.org.uk/listinfo/opentrv-dev" target="_blank">http://lists.opentrv.org.uk/listinfo/opentrv-dev</a><br>
><br>
> _______________________________________________<br>
> OpenTRV-dev mailing list<br>
> <a href="mailto:OpenTRV-dev@lists.opentrv.org.uk">OpenTRV-dev@lists.opentrv.org.uk</a><br>
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><br>
<br>
<br>
<br><br>---------- Forwarded message ----------<br>From: Stuart Poulton <<a href="mailto:stuart@poulton.org.uk">stuart@poulton.org.uk</a>><br>To: Closed list for developer discussions <<a href="mailto:opentrv-dev@lists.opentrv.org.uk">opentrv-dev@lists.opentrv.org.uk</a>><br>
Cc: <br>Date: Wed, 29 Jan 2014 19:37:59 +0000<br>Subject: Re: [OpenTRV-dev] Vaillant boiler issue<br><div style="word-wrap:break-word">Ok.<div><br></div><div>Sorry missed the 12v bit try these</div><div><br></div><div><a href="http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-3v-operation-supports-logic-level-also/" target="_blank">http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-3v-operation-supports-logic-level-also/</a></div>
<div><br></div><div>Stuart</div><div><br><div><div>On 29 Jan 2014, at 18:54, Damon Hart-Davis wrote:</div><br><blockquote type="cite"><div>Hi,<br><br>I really need to try to get one done on Monday-ish and have one in reserve, and I’m in Brussels at FOSDEM all weekend.<br>
<br>The board needs a 12V supply. I may not have a suitable one to hand, so I’ll need to get one, attach to the householder’s rather crowded wall, and plug in, such a supply. More mess and complication!<br><br>Anyhow I’ll try to order a couple of these boards now and sort the rest as a I can.<br>
<br>Rgds<br><br>Damon<br><br><br>On 29 Jan 2014, at 18:33, Stuart Poulton <<a href="mailto:stuart@poulton.org.uk" target="_blank">stuart@poulton.org.uk</a>> wrote:<br><br><blockquote type="cite">Damon,<br></blockquote>
<blockquote type="cite"><br></blockquote><blockquote type="cite">Why do you need an additional PSU ? <br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I'm happy to pitch in and solder them together, just get ciseco to ship them to me :) I'll ship them to you, how many are you talking ?<br>
</blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Stuart<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">On 29 Jan 2014, at 18:29, Damon Hart-Davis wrote:<br>
</blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><blockquote type="cite">That’s definitely on the right lines, thanks!<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">
<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">Though I’d prefer not to have to assemble anything (time is pretty tight) or have another power supply, though again that can probably be worked around.<br>
</blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">Thanks again!<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">
<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">Rgds<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">
Damon<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">On 29 Jan 2014, at 17:34, Stuart Poulton <<a href="mailto:stuart@poulton.org.uk" target="_blank">stuart@poulton.org.uk</a>> wrote:<br>
</blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">How about this from a nice UK based company<br>
</blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">
<a href="http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/" target="_blank">http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/</a><br>
</blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">
Stuart<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">
On 29 Jan 2014, at 17:15, Damon Hart-Davis wrote:<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite">
<blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Hi,<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">
<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Had a chat with Vaillent tech support this afternoon and the newer models of the ecoTEC plus 837 are different to the old in that the new one is not presenting a real load 240V, ie is fairly high impedance purely for sensing, and thus will probably NOT work property with an SSR (or indeed anything self-powered for a start).<br>
</blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite">
<blockquote type="cite"><blockquote type="cite"><blockquote type="cite">So, I have to find an alternative solution that should work for the problematic install. It might even have to be a little logic relay board.<br></blockquote>
</blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">
<blockquote type="cite"><blockquote type="cite">Small neat efficent 240VAC/DC 3V-in relay modules (mains powered) that I can sling in one of our SSR boxes (for example) would be welcome, and can then be used as an alternative in any similar situation. We should see what OEM is using.<br>
</blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite">
<blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Rgds<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">
<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Damon<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite">
<blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">
<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">_______________________________________________<br></blockquote></blockquote>
</blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">OpenTRV-dev mailing list<br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite">
<blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><a href="mailto:OpenTRV-dev@lists.opentrv.org.uk" target="_blank">OpenTRV-dev@lists.opentrv.org.uk</a><br></blockquote></blockquote></blockquote></blockquote>
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