Ultrasonic sensor box for rain cistern
thingiverse
Searching for a simple box for an ultrasonic sensor adapted to a esp I couldn't find anything that fit my needs. So I tried to design my own. Heres what my needs were: The box should be placed on top of a rain water tank to measure the level. So it must contain wholes for the sensor and enough space for an esp that is attached to it. It should resist rain and a 5v cable needs to go inside to deliver power to the esp. Currently it works just fine. No problems with moisture and electronics. Running a simple Rest-Api the esp returns the distance to the water surface. I use ioBroker to calculate the water volume inside the tank.
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