I'd like to use a pi zero connected to a ultrasonic sensor to monitor water level in a tank and broadcast the info to another pi in my home. Ideally, I want to do this without internet.
Is it possible to use the tank pi to create an ad-hoc network that can be accessed by the house pi, and send the feedback from the sensor once every 24 hours? The house pi would display the received info, for example on an e-ink screen.
There are devices available that do basically this exact thing, but I have a couple of pi zeroes going unused and a curious mind ...
Any suggestions welcome!