This software feeds the Mqtt broker with environmental data from the Netatmo Weather Station and up to 3 indoor units, one main unit and one outdoor unit. It’s a Python script that runs on most platforms like Windows, Linux and MacOs. Compatible with HomeSeer, Home Assistant, Homey, Fibaro HC3, Node Red, Iobroker, OpenHAB and others. Data transmitted is temperature outside and inside, humidity outside and inside, CO2 content, noise and air pressure at the main unit. The program requires access to a MQTT broker with username / password security.