Hi folks, I am an Arduino beginner and my question is:
I am using Windows 7 64Bit and chinese Arduino Hardware. After installing the CH341 USB serial Driver directly from the chinese site, I am working fine with the Arduino Uno, I've installed several shields and modified the SW, all working fine !
But with my Nano I cannot upload ! The error message is: "error opening serial port COM 10 (port busy)"
I select the proper Hardware and the same COM Port in "Tools"
I try different USB cables
I try 5 different Nano HW
Nano Boards use the same HW as the Uno (Mega328P and serial Chip CH340G, the only difference is the subnumber on the 328P is in Uno "AU1519"- working and in NAno "AU 1532" - not working)
Nano has Auto Bootloader (green LED is blinking)
Has anyone an idea ?
Thank in advance, friendly greatings from Austria in Europe