first commit

Author: GrKoR

.gitignore

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+# Gitignore settings for ESPHome
+# This is an example and may include too much for your use-case.
+# You can modify this file to suit your needs.
+/.esphome/
+/.vscode/
+/secrets.yaml

README.md

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+# ESPHome Water Control Unit
+
+**Current status:** not finished, work in progress.
+
+
+## Features
+* Hot and cold water consumption monitoring (reed switch output of the meters).
+* Measurement of the water pressure before filters and after pressure reducer for both hot and cold water.
+* Measurement of the water temperature for: water heater, hot water inlet, cold water inlet.
+* Control of the air temperature in the device's case.
+* Automatic and manual mode for opening / closing of hot and cold water.
+* Water leakage control in several points of the system. 
+* It is possible to manually ignore leakage for 10 minutes. 
+* Values of total water consumption counters are stored in the flash during reboot.
+* Initial values of total water consumption counters can be set by Home Assistant service calls.
+* Implemented once per month call of valve's service action (close & open of water inlets).
+* Stores date of last service action.
+* Helpers: 1-wire online device searching, average ADC voltage measurement, disable pressure value publishing to the Home Assistant.
+
+
+## Hardware
+
+CPU board of this project is [WT32-ETH01](https://files.seeedstudio.com/products/102991455/WT32-ETH01_datasheet_V1.1-%20en.pdf) with the following pin usage:  
+![esp-pinout](https://github.com/GrKoR/)
+
+
+Schematic diagram of the board:  
+![board-schematic](https://github.com/GrKoR/)
+
+PCB of the water unit (made only as a test of trace routing for handmade prototyping):  
+![pcb-prototype](https://github.com/GrKoR/)

docs/water-unit-esp-pin-usage.png

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+# Логика работы
+
+закинул в обсидиан