Krill Labs - Hatch White Noise Mod

Wiring:

Needed to pull this into my home assistant but not only does it not use wi-fi, it didnt have any real bluetooth or interfacing APIs, so I opened it up and looked for ways to control it remotely. After finding the solder points for power and the touch ring, I was able to connect it to a smart relay board for remote operation. It should be noted, to simulate touching the metal ring, you couldnt just short the contact to ground with a long wire, it messed with the capacitance, so badly infact, that even the local touch ring itself wouldnt work, so I had to introduce an NPN transister for a much closer relay action.

Programming:

Then to actually control it, close the relay breifly to simulate a short touch of the ring to turn it on, and to rotate through your pre-programed-favs. To turn the Hatch off, close the realy for 4sec. This was done with 2 seperate scripts in home assistant, each with different delays between the turn on and turn off commands.