Arduino weather station

This is a simple weather station based on Arduino Uno R3 and a TE Connectivity's weather hat.

Hardware

• Arduino Uno R3
• TE Connectivity's weather hat
• 16x2 LCD display (optional)
• Raspberry Pi or any other SBC

Software

This project has a couple of library dependencies:

Arduino

• ArduinoJson
• TEWeatherShield
• LiquidCrystal_I2C

Raspberry Pi

• WireGuard (optional, used to link a remote Home Assistant instance)
• systemd (used to prepare the environment on the Home Assistant instance)
• ser2net (used to expose the serial port to the Home Assistant instance)

Installation

1. Flash the Arduino with the vremenska-postaja.ino sketch or flash the included build/vremenska-postaja.ino.hex binary.

2. Set up ser2net on the Raspberry Pi. The configuration file is located in ser2net.conf. The default port is 2000.

3. Set up WireGuard and link the Raspberry Pi to a remote Home Assistant instance. (Optional!)

4. Set up socat-remote service on the Home Assistant instance. The service file is located in socat-remote.service.

5. Add the weather_station platform to your Home Assistant instance. The configuration file is located in configuration.yaml.