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You can only test ONE CABLE at a time

Step 1 - CHIP TEST

Plug in the cable into your computer (we will use Windows)

Go to the Device Manager (From the Start Menu, select Settings→Control Panel. Double click on System and select the Hardware tab. Then click on the Device Manager button)


When plugging in a USB cable, the window will refresh and you will see USB Serial Port (COMx)

If the new COM port doesn't show up, there is a problem with the cable


This is the end of your FTDI Cable

We added breakout wires to make it easy to measure voltages

Test voltage between black and red wires - it must be 5V

Test voltage between black and orange wires - it must be 3.3V

Communication test

Download X-CTU:

Install software

Start up software

/home/ladyada/public_html/wiki/data/attic/ftditest.1281112755.txt.gz · Last modified: 2016/01/28 18:05 (external edit)