Bezzerra Level Sensor ESP 32 HC-SR04
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Description
This is a holder for an Elegoo ESP 32 ultrasonic sensor in a Bezzera BZ13 tank to display the fill level. I also displayed this on a CYD, and the fill level changes color depending on how full it is. Furthermore, I receive a notification on my phone if the fill level is too low, so it no longer happens that only half an espresso is drawn and the machine then shuts down.
Attached here you can find the ESP 32 yaml with calibration buttons and sensors for full/empty, as well as distance in meters, percent, and liters.
I integrated the Cheap Yellow Display with openHASP and made the configuration YAML entry as shown in the attachment.
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License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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