Add WiFi to legacy "Digital Processors" using a ESP8266
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I'm currently looking to add WiFi to a Aqualisa Quartz that I have laying around.
The unit is a Quartz (Divert?) unit, that uses the Black “Digital processor”
So far I have worked out the following schematics for the Main controller on the shower
A remote control to trigger Start/Stop (There is an error, R5 is 1K)
There are a couple of bits I'm looking for circuity for, the Divert function, How does the hand unit send the signal to be picked up by the "Divert Processor" and the other is Flow control, only on higher end hand units, such as hiqu, ilux,or infinia.
It would be nice to get the protocol figured out, so that we can make a better controller for home automation. I know its possible as this place makes a 3rd party controller