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zibous authored Feb 2, 2023
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![diehl_metering](./docs/diehl_metering.jpg)


I did some eyperiments with **wmbusmeters**, **DVT SDR_STICK**, **NANOCUL** and ended up with: **Wemos D1 Min, CUL + CC1101 (esphome)**.
I did some experiments with **wmbusmeters**, **DVT SDR_STICK**, **NANOCUL** and ended up with: **Wemos D1 Min, CUL + CC1101 (esphome)**.

<br>

**Wemos D1 Min, CUL + CC1101 (esphome)** is the best solution for me because the resource requirement is low.
**Wemos D1 Mini + CC1101 (esphome)** is the best solution for me because the resource requirement is low.

With the NANOCUL solutions, I always had problems with the USB input and with the high resource consumption on the NUC or Raspberry computers.


![Wemos D1 Min, CUL + CC1101](./docs/d1min_cc1101.png)
![Wemos D1 Mini + CC1101](./docs/d1min_cc1101.png)

### Requirements

- Water meter with IZAR module (Diehl IZAR RC 868 I R4 PL),
IZAR Radio Compact Hall is designed for mobile reading and fixed network remote reading of Diehl Metering meters.
<br>
- [Wemos D1 Min, CUL + CC1101](https://amzn.eu/d/0WQv07I)
- [Wemos D1 Mini CC1101](https://amzn.eu/d/0WQv07I)
- [Fayme CC1101 868MHZ Funk ÜBertragung Antennen Transceiver Modul, Grün](https://amzn.eu/d/i5YwBkR)



## Installation
[Wemos D1 Min, CUL + CC1101 Installation](./esphome/README.md)
[Wemos D1 Mini + CC1101 Installation](./esphome/README.md)

### What I still miss
Only the `total_m3` are currently decoded from the telegram. I am still looking for support on how to determine the further information from the telegram:
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### For more information see:

```
https://github.com/weetmuts/wmbusmeters
https://github.com/SzczepanLeon/esphome-components
https://osmocom.org/projects/rtl-sdr/wiki/Rtl-sdr
https://github.com/xaelsouth/rtl-wmbus
https://github.com/weetmuts/wmbusmeters
https://github.com/ZeWaren/izar-prios-smart-meter-collector
## DVB-T receiver or Nano CUL Adapter
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