[OpenTRV-dev] OpenTRV-dev Digest, Vol 36, Issue 1

[Bo Herrmannsen]

i would go for reflow oven

2016-02-17 10:52 GMT+01:00 Jeroen Peelaerts <jeroen.peelaerts at gmail.com>:

> Hi there,
>
> 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 :)
>
>
>
> 2016-02-16 13:00 GMT+01:00 <opentrv-dev-request at lists.opentrv.org.uk>:
>
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>> Today's Topics:
>>
>>    1. OT: offsetting a thermistor in conrad wall thermostat
>>       (Bo Herrmannsen)
>>    2. Re: OT: offsetting a thermistor in conrad wall    thermostat
>>       (Bo Herrmannsen)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Mon, 15 Feb 2016 17:40:33 +0100
>> From: Bo Herrmannsen <bo.herrmannsen at gmail.com>
>> To: Closed list for developer discussions
>>         <opentrv-dev at lists.opentrv.org.uk>
>> Subject: [OpenTRV-dev] OT: offsetting a thermistor in conrad wall
>>         thermostat
>> Message-ID:
>>         <CAFqpYu5SwebNfQkpkdCx3xC1a=GxNZAc5bpo-j9DE=fGLG6=
>> qg at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Hi all
>>
>> Got hold of a conrad wall thermostat (from damon) that uses a 10k
>> thermistor as temp sensor
>>
>> I want to experiment with it and see how well it can control my district
>> hot water,
>>
>> only downside are that conrad only allows me to set temp to 30 degrees as
>> a
>> max
>>
>>
>> how would i offset the thermistor so it will meassure say 20-30 degree's
>> to
>> little (so i can reach 50-60 degrees)? I have no schematic of the unit so
>> i
>> want to do as little changes as possible
>>
>> rgds bo
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>> ------------------------------
>>
>> Message: 2
>> Date: Mon, 15 Feb 2016 17:52:50 +0100
>> From: Bo Herrmannsen <bo.herrmannsen at gmail.com>
>> To: Closed list for developer discussions
>>         <opentrv-dev at lists.opentrv.org.uk>
>> Subject: Re: [OpenTRV-dev] OT: offsetting a thermistor in conrad wall
>>         thermostat
>> Message-ID:
>>         <CAFqpYu7oc=
>> 6-Oiw6AHuznN5dp+vSk3WucBZcx_ZvNfPvtW-v7w at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> put a 31-32 kohm resistor in series maybe?
>>
>> 2016-02-15 17:40 GMT+01:00 Bo Herrmannsen <bo.herrmannsen at gmail.com>:
>>
>> > Hi all
>> >
>> > Got hold of a conrad wall thermostat (from damon) that uses a 10k
>> > thermistor as temp sensor
>> >
>> > I want to experiment with it and see how well it can control my district
>> > hot water,
>> >
>> > only downside are that conrad only allows me to set temp to 30 degrees
>> as
>> > a max
>> >
>> >
>> > how would i offset the thermistor so it will meassure say 20-30 degree's
>> > to little (so i can reach 50-60 degrees)? I have no schematic of the
>> unit
>> > so i want to do as little changes as possible
>> >
>> > rgds bo
>> >
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