Can USB be used as serial port?

A virtual COM: port in a USB device is simply a serial port coming out of that USB slave device as an endpoint. Windows will give it a number (COM1:, COM27: etc.) and that serial port can be recognised and used by any program using the standard Windows API for COM: ports.

Is RS232 and DB9 the same?

DB9, for example, is a 9 pin connector for a serial cable. You can see one here. RS-232, on the other hand, refers to the standard itself. RS-232 (sometimes called EIA-232) describes how systems can communicate between each other using a serial cable.

How does RS232 to USB work?

A USB-RS232 cable creates a COMx: port on the USB host device. The RS232 side of the device connects to either a serial client device, or, a COMx: port on another computer. Between the two, any app on either side can exchange arbitrary data over serial ports.

How do I change my USB to a serial port?

SOLUTION

1. Go to Windows Device manager > Multi-port serial adapters.
2. Select the adapter and right click to open the menu.
3. Click on the Properties link.
4. Open the Ports Configuration tab.
5. Click on the Port Setting button.
6. Select the Port Number and click OK.
7. Click OK to apply the changes.

What advantage does a USB port have over serial ports?

USB allows data to travel on the average of ten times the speed of the normal parallel port. It is also faster than a serial port. The average serial port transfer rate is 150 kbps; the USB port is up to 12 Mbps. USB 2 is forty times faster, with a maximum transfer rate of 480 Mbps.

How do I assign a com port to a USB port?

How to assign a COM port to a USB device Windows 10?

1. Open the Windows Device Manager.
2. Click on the Ports (COM & LPT) to expand the selection.
3. Right-click on the device whose designation you want to change and select Properties.
4. Click on Port Settings and then click the Advanced button.

What is DB9 cable?

The DB9 connector (originally named DE-9) is an analog socket, with 9 pins, from the D-Subminiatures (D-Sub) connector family. The DB9 has the smallest “footprint” of the D-Subminiature connectors. The prefix “D” represents the D-shape of the connector shell.

How do I test USB to RS232 cable?

If connected, remove the USB RS232 adapter. In Windows, open Device Manager and expand the Ports section. While Device Manager is open insert the USB RS232 adapter and after a few seconds a USB Serial Port should appear. If not, there is a problem with the adapter or driver.

How do I use my USB port as a COM port?

Do this by right-clicking the line USB Serial Port and select Properties from the popup menu. Click on the Port Settings tab, and then click the Advanced… Button. Select the COM port Number dropdown box and select a COM port number 2, 3, or 4 (usually COM1 is already in use).

What are the different types of RS232 to USB adapters?

There are two types that do a similar job A digital serial to USB adaptor An RS232 to USB adaptor USB Serial Port: Digital Serial The digital serial unit does away with all RS232 comms (and cables) and outputs only digital signals.

What is the difference between RS232 and MAX232?

Note: The RS232 version means more work in wiring up a level translator chip e.g. MAX232 and you won’t see much benefit other than operation over longer distance, for normal use.

What is the difference between RS232 and digital serial?

USB Serial Port: Digital Serial The digital serial unit does away with all RS232 comms (and cables) and outputs only digital signals. This is the generates the same as the signals that you get at the microcontroller, after they are decoded at the MAX232 chip.

Can I use a USB-to-serial cable with a microcontroller?

Most USB-to-serial cables (including the on you refer to) include both the usb-to-serial chip AND the max232, with no possibility to access the in-between level. So, for a successful asynchronous serial PC-to-microcontroller connection there are two possibilities (FT232 can be swapped for an equivalent chip from another vendor):