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Computer not seeing arduino when plugged in usb? - IDE 1.x - Arduino Forum

Arduino Uno: Cannot Connect via USB - IDE 1.x - Arduino Forum

Arduino not working? Troubleshoot Tips and Tricks to make It Work

Windows 10 - USB port does not show up - IDE 1.x - Arduino Forum

USB Serial Port suddenly disappeared from menu? (Mac) - IDE 1.x

Arduino does not recognize USB port on Mac - IDE 1.x - Arduino Forum
![[SOLVED] Cheap Arduino Uno "Unable to install driver/USB not recognize](https://i.ytimg.com/vi/0jAN4xu1xxo/maxresdefault.jpg)
[SOLVED] Cheap Arduino Uno "Unable to install driver/USB not recognize

Reuse USB port on Arduino for other tasks - Interfacing - Arduino Forum