I downloaded from the site the latest version of the software, for MAC, installed as instructed, connect the USB cable, I start the aquarium application, after a little below appears written interface detected: on /dev/cu.usbserial-A8009lyN (V1.1.0.8) blond should be all ok, but by clicking on the send to unit or receive from unit button, nothing happens, I have a MacBook Pro latest model updated.