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Finally hacked up my wireless web-connected timer

Posted: Tue May 27, 2014 6:59 pm
by tofergregg
Saw a couple of posts here about hacking the S1 with a non-standard timer, e.g,

http://www.s1cafe.com/viewtopic.php?f=3 ... all#p21953

I decided that it wouldn't be too hard to do this with a Raspberry Pi and a bit of soldier and wires. After a couple of weeks of research and getting my hands dirty, I finally got it all together. I wanted to be able to tell if the machine was on or off, and whether the steam boiler was on or off. A future mod might involve seeing the current temperature, but that might be overboard...

Here are the pics:

http://imgur.com/a/JUAjG

The web site pic:
Image

Cheers!
p.s. Just found another RasPi build here, too:
viewtopic.php?f=34&t=1911&p=22865&hilit ... man#p22865

Re: Finally hacked up my wireless web-connected timer

Posted: Tue May 27, 2014 7:11 pm
by chas
Congratulations. This is the best one yet!

Re: Finally hacked up my wireless web-connected timer

Posted: Tue May 27, 2014 8:15 pm
by tofergregg
Thanks! Once I figured out how to open up the controller (thanks to MonkeyK's post I mentioned above), it was a matter of some judicious use of a multimeter and figuring out how to control the buttons. I ended up using an optoisolator that kept the machine's electronics separate from the Raspberry Pi's electronics, so it is relatively safe. The one problem is that I didn't correctly do the math for a resistance for connecting to the ON LED, so it is a bit dimmer than normal. But, seeing as I'm not a fan of the bright flashing green light, this is actually a bit of a bonus! :)

Re: Finally hacked up my wireless web-connected timer

Posted: Thu Sep 04, 2014 4:31 pm
by Pryz
Awesome. Any chance of you wanting to post detailed instructions. I can likely do this, but detailed instructions are always easier to work from than a picture.

Re: Finally hacked up my wireless web-connected timer

Posted: Fri Mar 27, 2015 4:58 pm
by lars
Holy cow!
I had been tinkering with just hooking up to turning it on and off. But this i amazing.
Is there any chance you would share schematics and other findings?