|Geospring GEH50DEEDSRB installed in crawl space.|
Summer 2015 I purchased a GE CONNECTPLUS and installed it on the water heater, so I could control the water heater using the GeoSpring app. I also installed a tank booster to increase the effective capacity of the tank.
|GE Connect Plus|
|App primary layout|
|App setting (swipe down) - It's a bit scrambled on my phone.|
|Green Bean adapter|
|Raspberry Pi & Green Bean (in a Lego brick case)|
|Control panel close up. Notice the RJ45 socket (small black square)|
There is only one RJ45 port on the water heater, but the protocol used is a pull down open collector (one wire) bus so you can connect more than one device to it at a time, if you use a RJ45 splitter. I got a 2 to 1 splitter from eBay for a $1 free shipping. I'm sure I have one somewhere, but why would I dig through all my stuff for 30 minutes looking for it - to save a buck? Nope.
FYI - Plugging the ConnectPlus back into the water heater restores its function, so you don't have to wait for the splitter to show up to test out the green bean.
|Output from geospring-test.js. Note sudo has to be used.|