Weather station Volna 2BW42 firmware

A weather station project with a monochrome E-Ink display

E-Ink displays 4.2' (400x300), 1.5' (200x200)
(Waveshare, WeAct, Heltec or equivalents - List of supported displays)
Temperature and humidity sensor - BME280; Optional : CO2 - SCD41 sensor, Temp - DS18B20 sensor;
Arduino Framework (C++, PlatformIO); compatible with ESP8266 and ESP32
Create and upload your own design through the web panel
Autonomous mode - the device wakes up every 10 minutes (default) and updates the screen. A 2000 mAh 18650 battery lasts for several months
Partial update mode for the clock area - every 1-2 minutes
Sensor data transmission via MQTT, receiving data from an external sensor through Home Assistant, Domoticz, Open-Meteo or from OpenWeather (less recomended) API
UI Language : English, Russian, Japanese, German (any other translations are welcome)
Settings panel language : English, Russian

How to build

Open project in PlatformIO (subfolder Volna42)
Setup pinouts and defines in UserDefines.h according to your display & overall setup (battery sensor, i2c pins)
Setup settings in UserSetting.h
Build!
First setup from web-panel (access by displayed IP)

Default ESP8266 D1 Mini config - platformio.esp8266.ini
Default ESP32-S3-DEVKITC-1 config - platformio.esp32.ini

Default settings (UserSetting.h)

WiFi Access Point (Turned On if WiFi settings not specified)
Name : VOLNA42-EINK
Password : volnaaccess
Web-interface : http://192.168.1.1/
Firmware Update page : http://192.168.1.1/update (login : admin, password : admin)

Full documentation & extended build instructions
Schematics