Visiteurs depuis le 25/01/2019 : 1512 Connectés : 1 Record de connectés : 35 Basically, its CH340G USB-Serial chip doesn't register any more on the Mac OS X. That's probably because I deleted the dratted driver. Time to install the new version for High Sierra (1.4) which is available at the WCH CH340 OS X driver website. Seems to work ok. Some parts that use these drivers include the FTDI basic, S