I used to conect my Brewpi Spark v2 via USB but my micro-USB conector is broken… I think is possible to conect the RaspberryPi & BrewPi via WIFI. Is this true? How can I do that?
You can download the Particle app and follow the instructions to add a Photon. This will connect your Spark to wifi.
More problematic will be getting firmware on your Spark. We support updating firmware over wifi, but this is a feature implemented in our firmware.