Are you using a Windows PC? Try plugging the Ard into different usb sockets and see what com port you have. Some Ard with the CH340 chip change port number with USB socket. It’s a feature. (?)
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Are you using a Windows PC? Try plugging the Ard into different usb sockets and see what com port you have. Some Ard with the CH340 chip change port number with USB socket. It’s a feature. (?)