An automation solution for astronomical observatories

Leave a comment

Cloud sensor

The Melexis MLX90614 chip.  Really it is not a cloud sensor. It is a Infra-red thermometer that can be uses for such propose. Measuring the sky temperature and comparing with ambient temperature is a good indicator of how cloudy is the sky.



Leave a comment

Humidity/Temperature sensors

The guys from use Sensurion SFT11 conbine sensor to make dew heaters. See Sensirion page

Is available at

A good and cheaper alternative is DHT22 chip