Arduino Studio “COM Port grayed out” problem is the most annoying problem of the IDE.

Drivers Installer for APCI-7420 communications port 1 (COM6) If you don’t want to waste time on hunting after the needed driver for your PC, feel free to use a dedicated self-acting installer. It will select only qualified and updated drivers for all hardware parts all alone. To download SCI Drivers Installer, follow this link. Am having the same issue. Just for MTK6575 com port driver. Cipriot New member. Nov 7, 2012 4 1 0. Nov 10, 2012 at 11:46 PM #9 Just made my. I would like to change the communication port settings in windows 7 so that my p.c will be able to communicate with an equipment. I have already installed the equipment software but apparently need to change the comm port settings to comm port 1-9. I have checked the device manager but could not find the communication port. Serial port 'COM6' not found. Did you select the right one from the Tools Serial Port menu? The Serial port menu though is grayed out. Research has told me to open up Device Manager and update drivers but there is no other devices tab in my Device Manager.

Apci-7420 Communications Port 1 (com6) Driver Download

Comparing with other IDEs from other programming languages, Arduino Studio is not very user friendly.
The most annoying problem that I encountered is the “COM Port grayed out” problem which means that the COM port is grayed out and I can’t select anything.
Even if the device drivers are correctly loaded, and they show up in windows control panel, Arduino Studio cannot see them or it considers that ports are busy.

In the end, I had found a solution which is not the easiest, but is the only one that works.

Apci-7420 Communications Port 1 (com6) Driver Licence

1. Make sure you have the correct driver for your device and the device shows up in “Device Manager”:

• For ch340 chips (Chinese Arduino boards): http://www.wch.cn/downloadlist/driver-1.html
• For FTDI chips (FT232RL): http://www.ftdichip.com/Drivers/VCP.htm
• For USBasp programmers: http://www.fischl.de/usbasp/

2. When the Serial port menu is greyed out, it means there are no available ports.

These are the steps:

1. Connect your board

For FTDI board:

• Connect only the FTDI board to a USB port.
• Go to Control Panel, under the USB Controllers and find the “USB Serial Converter”
• Now you know that it is installed correctly
• connect the FTDI board to Arduino.

For Arduino UNO:

• Connect the board to the computer using a USB cable

2. Find your COM port number

• Go to Control Panel, under the Ports (COM&LPT) and look for your COM number.
• If you have multiple ports you can right-click on each of them and go to Properties -> Driver and find out which one it is your Arduino

3. Note down the number attached to COM

In my case, it was 4.

Apci-7420 Communications Port 1 (com6) Driver Updater

4. Find the external preferences file and edit it

• Open Arduino IDE and go to File -> Preferences
• At the bottom of the menu, the path to the preferences.txt file is listed.
• Click on that file or open it in a text editor
• Close the Arduino Studio IDE
• Scroll down to – serial. port = COMx. Change the ‘x’ to the number of your port.

5. Reopen Arduino

• Look at the bottom right corner of the IDE: your port should be listed there.

6. Now you can upload sketches to your Arduino only on that port!

Apci-7420 Communications Port 1 (com6) Driver Windows 7

Apci-7420 Communications Port 1 (com6) Driver Course

• The next time you will reconnect the Arduino to PC your port number may change.
• If your port number changes, you will have to take all these steps from the beginning.