Author Options:

How do i make a DB9 to USB cable adapter? Answered

I need a DB9 (male) to USB 2.0 (male) male cable adapter because i don't really want to buy one when i have every thing i need to make one.


Lemonie's right, its not a cable wired from one to the other - there is an interface chip, like the FTDI 232R in there. Making one is not worth it, you can buy them online for less than you can get the parts.


Ya its probably easier to just buy one but thanks any way guys

Steve is right about Lemonie being right.  Luckily the adapters are cheap.

I don't believe you can just connect wires together. Search for "USB 2.0 pinout" and "DB9 pinout", compare the two.