![Flashing Wemos D1 Mini with ESPHome: Unexpected error: could not open port 'COM4': PermissionError(13, 'Access is denied.', None, 5) - Hardware - Home Assistant Community Flashing Wemos D1 Mini with ESPHome: Unexpected error: could not open port 'COM4': PermissionError(13, 'Access is denied.', None, 5) - Hardware - Home Assistant Community](https://community-assets.home-assistant.io/optimized/3X/e/5/e5179309676de3353239b6cbdd8a01d969181bb4_2_498x500.png)
Flashing Wemos D1 Mini with ESPHome: Unexpected error: could not open port 'COM4': PermissionError(13, 'Access is denied.', None, 5) - Hardware - Home Assistant Community
KB485030: How to connect to MongoDB by JDBC driver in MicroStrategy 2021 Update 2 with different port numbers
![Working with esp32 cam module. The code compiles well but there's an error when uploading the code to the board. "serial.serialutil.SerialException: could not open port 'COM3': WindowsError(5, 'Access is denied.') Failed to Working with esp32 cam module. The code compiles well but there's an error when uploading the code to the board. "serial.serialutil.SerialException: could not open port 'COM3': WindowsError(5, 'Access is denied.') Failed to](https://i.redd.it/gnzoiqvmqh3a1.png)
Working with esp32 cam module. The code compiles well but there's an error when uploading the code to the board. "serial.serialutil.SerialException: could not open port 'COM3': WindowsError(5, 'Access is denied.') Failed to
![Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it. Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.](https://gyorgybalassy.files.wordpress.com/2020/10/arduino-port-selection.png)
Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.
server error: could not open port COM1: [Error 5] Access is denied. · Issue #3 · ljean/modbus-tk · GitHub
![avrdude: ser_open(): can't open device "\\.\COM5": access denied. - Installation & Troubleshooting - Arduino Forum avrdude: ser_open(): can't open device "\\.\COM5": access denied. - Installation & Troubleshooting - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/6/3/a/63a61243382b3de443cf81791219bf121cbc54cb.png)