<div dir="ltr"><div><div>Hi there,<br><br></div>Just a couple of quick questions. IN which thermostats does the pcb I got by post fit best? Also what is the recommended way to assemble the board? Solder by hand, using heat gun (and solder paste) or in a reflow oven? There's quite a couple of smaller SMD parts that are probably too tiny to do by hand, or maybe it's just my lack of experience :)<br><br><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">2016-02-16 13:00 GMT+01:00 <span dir="ltr"><<a href="mailto:opentrv-dev-request@lists.opentrv.org.uk" target="_blank">opentrv-dev-request@lists.opentrv.org.uk</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send OpenTRV-dev mailing list submissions to<br>
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Today's Topics:<br>
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1. OT: offsetting a thermistor in conrad wall thermostat<br>
(Bo Herrmannsen)<br>
2. Re: OT: offsetting a thermistor in conrad wall thermostat<br>
(Bo Herrmannsen)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Mon, 15 Feb 2016 17:40:33 +0100<br>
From: Bo Herrmannsen <<a href="mailto:bo.herrmannsen@gmail.com">bo.herrmannsen@gmail.com</a>><br>
To: Closed list for developer discussions<br>
<<a href="mailto:opentrv-dev@lists.opentrv.org.uk">opentrv-dev@lists.opentrv.org.uk</a>><br>
Subject: [OpenTRV-dev] OT: offsetting a thermistor in conrad wall<br>
thermostat<br>
Message-ID:<br>
<CAFqpYu5SwebNfQkpkdCx3xC1a=GxNZAc5bpo-j9DE=fGLG6=<a href="mailto:qg@mail.gmail.com">qg@mail.gmail.com</a>><br>
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<br>
Hi all<br>
<br>
Got hold of a conrad wall thermostat (from damon) that uses a 10k<br>
thermistor as temp sensor<br>
<br>
I want to experiment with it and see how well it can control my district<br>
hot water,<br>
<br>
only downside are that conrad only allows me to set temp to 30 degrees as a<br>
max<br>
<br>
<br>
how would i offset the thermistor so it will meassure say 20-30 degree's to<br>
little (so i can reach 50-60 degrees)? I have no schematic of the unit so i<br>
want to do as little changes as possible<br>
<br>
rgds bo<br>
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Message: 2<br>
Date: Mon, 15 Feb 2016 17:52:50 +0100<br>
From: Bo Herrmannsen <<a href="mailto:bo.herrmannsen@gmail.com">bo.herrmannsen@gmail.com</a>><br>
To: Closed list for developer discussions<br>
<<a href="mailto:opentrv-dev@lists.opentrv.org.uk">opentrv-dev@lists.opentrv.org.uk</a>><br>
Subject: Re: [OpenTRV-dev] OT: offsetting a thermistor in conrad wall<br>
thermostat<br>
Message-ID:<br>
<CAFqpYu7oc=<a href="mailto:6-Oiw6AHuznN5dp%2BvSk3WucBZcx_ZvNfPvtW-v7w@mail.gmail.com">6-Oiw6AHuznN5dp+vSk3WucBZcx_ZvNfPvtW-v7w@mail.gmail.com</a>><br>
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<br>
put a 31-32 kohm resistor in series maybe?<br>
<br>
2016-02-15 17:40 GMT+01:00 Bo Herrmannsen <<a href="mailto:bo.herrmannsen@gmail.com">bo.herrmannsen@gmail.com</a>>:<br>
<br>
> Hi all<br>
><br>
> Got hold of a conrad wall thermostat (from damon) that uses a 10k<br>
> thermistor as temp sensor<br>
><br>
> I want to experiment with it and see how well it can control my district<br>
> hot water,<br>
><br>
> only downside are that conrad only allows me to set temp to 30 degrees as<br>
> a max<br>
><br>
><br>
> how would i offset the thermistor so it will meassure say 20-30 degree's<br>
> to little (so i can reach 50-60 degrees)? I have no schematic of the unit<br>
> so i want to do as little changes as possible<br>
><br>
> rgds bo<br>
><br>
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</blockquote></div><br></div>