====== Wasserzähler ======
  * https://gnulinux.ch/integration-des-multical-303-in-home-assistant-via-wireless-m-bus
  * https://github.com/SzczepanLeon/esphome-components/tree/version_4
  * https://github.com/Bulion/esphome-components -> Klappt mit Version 5 ????
  * https://github.com/Bulion/ESPHome-Components-iotlabs/tree/cc1101-interrupt -> genutzte Version aktuell
  * https://github.com/SzczepanLeon/esphome-components/issues/255

  * Pakete dekodieren: https://wmbusmeters.org/analyze/4744372C107680123C168D20D891B14521766FE7507F4AA874D3272FE57CCA1CF902FFB6CD5BB0A4C9AAF8BCD01C269AEDF870B24698D91F37C22A0DC2A701E367909BD25132B477:auto:F99D8C293A8615D769574737C530FC1F
===== CC1101 Modul =====
{{.:pasted:20251206-135039.png}}

^ Pin CC1101  ^ Pin ESP32  ^ Pin ESP32 S3  ^ Function         ^
| VCC         | 3.3V       | 3.3V          | Versorgung 3.3V  |
| GND         | GND        | GND           | Masse            |
| MOSI        | GPIO25     | GPIO48        | SPI Mosi         |
| MISO        | GPIO32     | GPIO47        | SPI Miso         |
| SCLK        | GPIO27     | GPIO21        | SPI Clock        |
| GDO0        | GPIO21     | GPIO13        |                  |
| GDO2        | GPIO17     | GPIO14        |                  |
| CSN         | GPIO22     | GPIO12        | Chip Select      |

===== SML Kopf =====
  * Gehäuse SML Kopf https://www.thingiverse.com/thing:6282093