Smartmeter reader

**Update V2: Changed Bottom Interface and Main Housing to also fit eBZ DD3.**

This Gadget reads out your smartmeter and can send the data via wifi.
Hint: Flash before mount! :-)

tested electricity meter:
* DTZ541
* eBZ DD3 front interface (for 2. interface on top use [this](https://link-url-here.org))
* eHZ-EDL MT681-D4A52-K0p

To Build it you need:
* Wemos D1 Mini
* [Volkszaehler-Board](https://wiki.volkszaehler.org/hardware/controllers/ir-schreib-lesekopf-ttl-ausgang)
* neodym-magnet-ring 27x16x5,5

See pictures how to mount everything.

This design is a remix of ["ESPHome Holley DTZ541 Three-Phase Meter Interface"](https://www.printables.com/de/model/353319) from LayerCake that i found on printables.com.

This was changed:
* rebuild the complet desgin to make wemos D1 Mini fit in it
* expand all tolerance to make buildable with my bad calibrated printer
* added wifi symbol

Print the bottom part in black to let the LED's work better.

For the Software i