I would like to introduce DYI second version of my water meter digitizer for the consumption monitoring. It works for water meter, as well as power or gas meters.
In the second version it is an easy to use all-in-one device with a graphical user and administration interface. As an interface to the house automation, there is a MQTT client included.
The working principle is still bases on a very cheap ESP32-CAM modul, which takes a picture that is digitizes by neural network support.
The hardware is published in Thingiverse and the software in GitHub. There is also a Wiki on the installation, configuration and some background infos:
Looking forward to your feedback and additional ideas.
Best regards and have fun in rebuilding it.
P.S.: The software backbone is very flexible, so it can be easily adjusted for new applications, looking also forward to your ideas!