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Kohler DTV Plus

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I thought I would share my recent addition to my system. I have a Kohler DTV+ shower that has a network interface as well as a web portal for minor changes and has some control over the device. 

I decided to peek around and inspect some of the web elements to discover a repeatable URL that I can use to trigger shower start and stop. You can discover these by simply using 'Inspect' in chrome for example and log the devices activty as you activate/deactivate the shower for example. 

Below are the two commands I am currently using in my system, you can modify the valve outputs and temperature. Mine right now is set only to turn on valve 1 at 38C.  Right now I use these links as an image in announcements (to trigger the weblink as an image on my T3), I then have it linked to custom buttons on my bathroom screen as well as IFTTT/google assistant (OK Google, turn on the shower) :) . I do not have the Chowmain driver to push weblinks but I think I will update to use that to trigger the URL in the future. 

ON: http://IPADDRESS/quick_shower.cgi?valve_num=1&valve1_outlet=1&valve1_massage=0&valve1_temp=38&valve2_outlet=0&valve2_massage=0&valve2_temp=38&_=1529517501631 
OFF: http://IPADDRESS/stop_shower.cgi?_=1529517501635 

It is not flawless, and I would caution when trying to discover the correct links if you enter one incorrectly the Kohler web portal will become non-responsive and you need to power cycle it (this took many power cycles for me to figure out correctly). 

Nonetheless, I can now tell my shower to turn on an off which I was quite excited about.   

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I bought the drivercentral "generic TCP" driver ($30) and set up 3 dummy relay switches in the bathroom for 3 different users and was able to send the URL (via "programming").  It works reliably and is much quicker to respond than the DTV+ touchscreens (which I'm not impressed with).

This requires composer/dealer access, but only took 30 min to get working.

The URLs I used were of the form:




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