I just got a simple weather station working. It's based on the ESP32 wifi board and the software is written in microPython.
I uploaded all the files to GitHub
The hardware is very simple. An IR detector (mlx90614 temperature sensor) and an environmental sensor (BME280) are connected through I2C to an Espressif ESP32 board which has microPython loaded.
I used Thonny to program the device (
Libraries for the sensors are readily available on line. The only minor issues I had were figuring out the connection to INDI. I decided to use the Weather Watcher INDI driver. This allows me to use the temperature and forecast/Weather parameters to control my observatory (once that's finished).