com port

The FT232R USB UART driver is the thin but critical layer that turns a USB connector into a reliable serial COM port—and when it fails, development boards, 3D printers, ham radio cables, and other USB‑to‑serial devices can stop talking to Windows entirely. This guide walks through how to install...

G'day all, If I disable or enable a com port (USB device) via the driver under device manager, the acton performs perfectly provided the port is not open. If the port is already open, I get a message that hardware has changed and that a restart is required. Why the difference, and how can I...

Hello, I just added a 3-D scanner to my computer and I get an error message as follows: "Com 1 not ready. Please verify that the port is valid or is not in use by another application." I am in fear that Com 1 is my Printer, and I do not want to disconnect it. I know that two devices cannot...

Not sure if this thread belongs here or in networks. I have a point of sales system that is Windows 7 based. Connected to serial port 3 is a customer pole display that shows the total for each item sold. My problem is that my point of sale software say that it cannot connect the pole display...

I am trying to redirect com port from Windows 7 to Windows 7 over RDP but it never works. I can redirect Drives, printers and everything else, just not com ports. Any ideas? Thanks

Hello all, I have been using an arduino ethernet for a few days and everything worked well. While uploading a sketch (arduino code) i received an error stating that the arduino was no longer connected to COM 4. I opened up the device manager, the arduino wasn't connected was there even though...

hey guys! I have a USB DVB card that works good! 3 days ago I have working on virtual com ports in matlab soft! and after that when I connect dvb card to my laptop usb ports the dvb software doesn't detect dvb card! and shows this message: all capable dvb adapters are busy no free device has...

I have used Add a Device to connect W7-64 to my BT GPS. No problem really. However, I want to use it with some ships navigation software which only uses COM 4. The device gets its COM service hooked to COM 3 automatically, and I see no way to change it. The Bluetooth Setup on XP allowed both...

I just bought a new computer with Windows 7. It is a HP Pavillion and only has USB ports. I NEED to use old peripheral(s) with serial and parallel cables. I have bought adapters for both and everything connects okay, but then I can't use the software because it's looking for a COM 1 port or an...

I have a Garmin GPS connected to a USB port. In XP I was able to see the USB ports under PORTS in the device manager and figure out which port it was connected to. I cannot see that in W7, I can't figure out which com port the usb port represents and my mapping software only sees COM1 (a...

Hi Im trying to flash my Dreambox 800 HD Pvr. When im runing Dreamup program get msg . Error:cant find any com port-aborting unable to open Link Removed Link Removed Please Guide me how can i get out this problem.. Thanks Boltakal

Hey guys, ive spent about 2 hrs trying to fix this issue Ive recently formatted a computer we use at a tanning salon and installed windows 7. Was running vista xp before Basically the device we use to control the beds is a serial port connected piece of hardware called a t-max manager...

I am running Windows 7 7100 (RC) and like it a lot. I am having a problem with the USB Serial Converter I bought to support a yoke, rudder pedal and throttle quadrant that I have. W7 recognized the hardware and installed a driver for the USB, but the caution icon came up (driver unsigned) and...

Hi ALl, Searching the forum didn't turn up anything relevant, so here goes. I've got an MFC C++ application that uses CreateFile() to open a bluetooth device mapped to a virtual com port, and it isn't working on Windows 7 for com ports greater than 9. In fact, specifying the com port as...