![Issue with USB com port on Acer Windows 10 - Port Busy or Access Denied - Installation & Troubleshooting - Arduino Forum Issue with USB com port on Acer Windows 10 - Port Busy or Access Denied - Installation & Troubleshooting - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/3/1/f/31f888c9e16cc848d2ff658e8c8938a8b417699b.png)
Issue with USB com port on Acer Windows 10 - Port Busy or Access Denied - Installation & Troubleshooting - Arduino Forum
![Processing keeps trying to use a "serial bluetooth port" to communicate with my arduino and the "port" it's trying to use is always busy. : r/ arduino Processing keeps trying to use a "serial bluetooth port" to communicate with my arduino and the "port" it's trying to use is always busy. : r/ arduino](http://i.imgur.com/JrQhI6b.png)
Processing keeps trying to use a "serial bluetooth port" to communicate with my arduino and the "port" it's trying to use is always busy. : r/ arduino
![Serial connection between Arduino and Processing doesn't work; Port busy - Electronics (Arduino, etc.) - Processing Foundation Serial connection between Arduino and Processing doesn't work; Port busy - Electronics (Arduino, etc.) - Processing Foundation](https://global.discourse-cdn.com/standard10/uploads/processingfoundation1/optimized/2X/2/2c505f7ac7b3f785adeb4ba6931edca6e31e75f5_2_540x500.png)