![]() The only cable I have with a mini-A connector for the Nano is one that came with an old GPS device I used to plug to my laptop. In each condition IDE Tools>Port show corresponding COM as above. Nano on back USB: Prolific USB-to-Serial Comm Port (COM7) Nano on side USB: Prolific USB-to-Serial Comm Port (COM10) Depending on the port I plug each board it shows a different COMM port on Device Manager as shown below: My Windows 7 laptop has two USB ports, one on right side and one at back panel. Your reply left me still more confused since I did though it should have worked for both boards. ![]() ![]() I tried to update the driver on Device Manager with those under Program Files (x86)>Arduino>drivers but it reports unable to install. Of course this is of no value to upload any sketch, but it may help you to diagnose my problem. If I plug my cellphone in that very same USB port, Device Manager stay the same, but Tools>Port is enabled to "COM5". ![]() This report would have more information with Maximum is 2048 bytes.Īvrdude: ser_open(): can't open device "\.\COM5": The system cannot find the file specified. Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Sketch uses 924 bytes (3%) of program storage space. Message displayed is:Īrduino: 1.8.13 (Windows 7), Board: "Arduino Nano, ATmega328P" red LED labeled "L" flashes briefly, about half second later red LED "TX" also blinks once and it stays with only green LED on. Device Manager (COM
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