Finally hacked up my wireless web-connected timer

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tofergregg
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Finally hacked up my wireless web-connected timer

Post by tofergregg » Tue May 27, 2014 6:59 pm

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

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chas
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Re: Finally hacked up my wireless web-connected timer

Post by chas » Tue May 27, 2014 7:11 pm

Congratulations. This is the best one yet!
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tofergregg
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Re: Finally hacked up my wireless web-connected timer

Post by tofergregg » Tue May 27, 2014 8:15 pm

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! :)

Pryz
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Re: Finally hacked up my wireless web-connected timer

Post by Pryz » Thu Sep 04, 2014 4:31 pm

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.
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lars
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Re: Finally hacked up my wireless web-connected timer

Post by lars » Fri Mar 27, 2015 4:58 pm

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?

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Re: Finally hacked up my wireless web-connected timer

Post by raddude » Mon Dec 10, 2018 5:00 pm

Here's the updated information from tofergregg, all credits go to him:

Arduino platform and the code for that is here:

https://github.com/tofergregg/EspressoWemos

The original Raspberry Pi code is here:

https://github.com/tofergregg/EspressoPi

Here's where you can order the bare board:

https://oshpark.com/shared_projects/TAsYDcsG

It appears that he used the WEMOS D1 mini and the Minivialdi shield is built on that. He also added and SD card shield found here:

https://www.amazon.com/ACROBOTIC-ESP826 ... s=wemos+sd

I'll be working on my own mod and will post updated information, including Digikey parts list for folks that venture to build the mod.
If you are familiar with Arduino, that is the way to go. I downloaded the ExpressWemos files, but I needed to add some additional files in Arduino to be able to have the program compile.

s1guy
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Re: timer

Post by s1guy » Tue Dec 11, 2018 10:57 pm

I'm undertaking this same project now. I looked at tofergregg's stuff, but I decided to go with a pi zero. They're small, cheap, have built-in wifi, and support for a full web stack.

I now have it rigged together to just power the machine on at fixed times, but I'm going to get some boards spun and a full app built around it in the near future. I'll post details as I get them

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