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| Started by | David <wibble@btintenet.com> |
|---|---|
| First post | 2016-02-20 14:37 +0000 |
| Last post | 2016-02-21 21:50 +0000 |
| Articles | 4 — 3 participants |
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Re: controlling a mains-powered oven David <wibble@btintenet.com> - 2016-02-20 14:37 +0000
Re: controlling a mains-powered oven Rob Morley <nospam@ntlworld.com> - 2016-02-20 14:53 +0000
Re: controlling a mains-powered oven David <wibble@btintenet.com> - 2016-02-20 16:33 +0000
Re: controlling a mains-powered oven Paul <paul@pcserviceselectronics.co.uk> - 2016-02-21 21:50 +0000
| From | David <wibble@btintenet.com> |
|---|---|
| Date | 2016-02-20 14:37 +0000 |
| Subject | Re: controlling a mains-powered oven |
| Message-ID | <dirc1qFcc7bU5@mid.individual.net> |
On Sun, 06 Sep 2015 15:20:49 +0100, Jim Nagel wrote: > Has anybody used a Pi to control a mains-powered device? I'm looking > for some tips. > > The electronic controller of our electric double oven is no longer > reliable -- temperature varies far too much, according to the > independent external thermometer I bought. Rather than spend £200 to > replace the controller, I fancy using a Pi instead. It could live > inside a nearby cupboard door, with a nice big screen at eye level > instead of the present little thing for which I have to don specs. > > Seems to me the Pi's job would basically be to read a temperature sensor > in each oven (smaller upper one and larger lower one) and trigger relays > (or nowadays maybe thyristors?) to switch various heating elements on > and off accordingly. (That's top and bottom element in each oven plus a > fan element in bottom oven.) > > Would this be feasible? Anybody done it already? Thought this would be very appropriate to uk.d-i-y -- Windows 8.1 on PCSpecialist box
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| From | Rob Morley <nospam@ntlworld.com> |
|---|---|
| Date | 2016-02-20 14:53 +0000 |
| Message-ID | <20160220145324.72c73890@ntlworld.com> |
| In reply to | #10726 |
On 20 Feb 2016 14:37:46 GMT David <wibble@btintenet.com> wrote: > Thought this would be very appropriate to uk.d-i-y > Why? Is it full of Raspberry Pi enthusiasts who for some reason can't subscribe to comp.sys.raspberry-pi ?
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| From | David <wibble@btintenet.com> |
|---|---|
| Date | 2016-02-20 16:33 +0000 |
| Message-ID | <dirir9Fcc7bU8@mid.individual.net> |
| In reply to | #10726 |
On Sat, 20 Feb 2016 14:40:05 +0000, The Natural Philosopher wrote: > On 20/02/16 14:37, David wrote: >> On Sun, 06 Sep 2015 15:20:49 +0100, Jim Nagel wrote: >> >>> Has anybody used a Pi to control a mains-powered device? I'm looking >>> for some tips. >>> >>> The electronic controller of our electric double oven is no longer >>> reliable -- temperature varies far too much, according to the >>> independent external thermometer I bought. Rather than spend £200 to >>> replace the controller, I fancy using a Pi instead. It could live >>> inside a nearby cupboard door, with a nice big screen at eye level >>> instead of the present little thing for which I have to don specs. >>> >>> Seems to me the Pi's job would basically be to read a temperature >>> sensor in each oven (smaller upper one and larger lower one) and >>> trigger relays (or nowadays maybe thyristors?) to switch various >>> heating elements on and off accordingly. (That's top and bottom >>> element in each oven plus a fan element in bottom oven.) >>> >>> Would this be feasible? Anybody done it already? >> >> >> Thought this would be very appropriate to uk.d-i-y >> >> > It was, 6 months ago... IIRC there have been updates since. -- Windows 8.1 on PCSpecialist box
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| From | Paul <paul@pcserviceselectronics.co.uk> |
|---|---|
| Date | 2016-02-21 21:50 +0000 |
| Message-ID | <MPG.3134416a4c1bf6c59897e8@172.16.0.1> |
| In reply to | #10736 |
In article <dirir9Fcc7bU8@mid.individual.net>, wibble@btintenet.com says... > > On Sat, 20 Feb 2016 14:40:05 +0000, The Natural Philosopher wrote: > > > On 20/02/16 14:37, David wrote: > >> On Sun, 06 Sep 2015 15:20:49 +0100, Jim Nagel wrote: > >> > >>> Has anybody used a Pi to control a mains-powered device? I'm looking > >>> for some tips. > >>> > >>> The electronic controller of our electric double oven is no longer > >>> reliable -- temperature varies far too much, according to the > >>> independent external thermometer I bought. Rather than spend £200 to > >>> replace the controller, I fancy using a Pi instead. It could live > >>> inside a nearby cupboard door, with a nice big screen at eye level > >>> instead of the present little thing for which I have to don specs. > >>> > >>> Seems to me the Pi's job would basically be to read a temperature > >>> sensor in each oven (smaller upper one and larger lower one) and > >>> trigger relays (or nowadays maybe thyristors?) to switch various > >>> heating elements on and off accordingly. (That's top and bottom > >>> element in each oven plus a fan element in bottom oven.) > >>> > >>> Would this be feasible? Anybody done it already? > >> > >> > >> Thought this would be very appropriate to uk.d-i-y > >> > >> > > It was, 6 months ago... > > > IIRC there have been updates since. >-- >Windows 8.1 on PCSpecialist box So you should have had the updates to forced on you to Windows 10 ... -- Paul Carpenter | paul@pcserviceselectronics.co.uk <http://www.pcserviceselectronics.co.uk/> PC Services <http://www.pcserviceselectronics.co.uk/pi/> Raspberry Pi Add-ons <http://www.pcserviceselectronics.co.uk/fonts/> Timing Diagram Font <http://www.badweb.org.uk/> For those web sites you hate
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