When you plug the device into your USB, Windows will look for the associated driver, if it cannot find this driver then you will be prompted to insert the driver disc that came with your device. Common USB Device errors are ‘ usb port not working ‘, ‘device descriptor request failed error’ or ‘bugcodeusbdriver’ issues. FTDI USB Serial Port driver is the software that helps your operating system to communicate with USB Serial Port devices. Get the latest driver Please enter your product details to view the latest driver information for your system.

This content relates to a deprecated version of Mbed

Right-click it, and choose Update Driver Software. Select Browse my computer for driver software. Click on Let me pick from a list of device drivers on my computer. Let me pick from a list of device drivers on my computer; From the options presented, select MTP USB Device, and click next. Follow the installation wizard to install it. The default IP address of all metraTec devices is 192.168.2.239. If your host device (laptop, PC, etc.) happens to be in the same subnet (i.e. It also has an address that starts with 192.168.2.x) you can use the internal webserver on port 80 to change the IP address.

Mbed 2 is now deprecated. For the latest version please see the Mbed OS documentation.

For the latest information about Serial, please see The Windows Serial Driver.

The mbed serial port works by default on Mac and Linux, but Windows needs a driver. These instructions explain how to setup the mbed Microcontroller to use the USB serial port on Windows.

1. Download the mbed Windows serial port driver¶

Download the installer to your PC, e.g. your desktop.

2. Run the installer¶

With your mbed plugged in, and no explorer drive windows open, run the installer:

It will take some time (especially on Vista), and pop up a few 'unsigned driver' warnings, but after a while you should have a Serial port.

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Where Next¶

• SerialPC - Communication with a PC
• Terminals - Guide to using terminal applications

Troubleshooting

If you have multiple mbed microcontrollers, but the serial port only appears for one of them:

• Make sure you run the installer for every mbed; windows loads the driver based on the serial number, so it needs to be run for each mbed you use

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If the installer fails because 'No mbed Microcontrollers were found':

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• Check your mbed Microcontroller is plugged in

If the installer reports the message 'mbedWinSerial_nnnnn.exe is not a valid Win32 application':

• It is likely you are using Internet Explorer to download the installer file, which sometimes seems to only download part of the installer application for an unknown reason
• To solve this, download the installer with a different browser (Firefox, Chrome), and try again; this should solve the issue.

If the Installer appears to hang:

• Check if windows has popped-up a 'unsigned driver/permission' window; these often get hidden behind other windows with nothing to indicate so in the taskbar! Windows may be waiting for you to click 'OK'!

If you have any problems, or think this tutorial could be improved, please tell us in the Forum!