Society of Robots - Robot Forum

General Misc => Misc => Topic started by: Trumpkin on October 04, 2009, 06:07:08 PM

Title: Something I Just Learned
Post by: Trumpkin on October 04, 2009, 06:07:08 PM

If you have your microcontroller powered by a different power source then your ft232r IT WILL NOT WORK.  :P My question is, why doesn't it?

Title: Re: Something I Just Learned
Post by: galannthegreat on October 04, 2009, 08:57:55 PM

Maybe it has something to do with ground, are they common between the two? If not, that definately puts everything out of whack.

Title: Re: Something I Just Learned
Post by: airman00 on October 04, 2009, 10:56:25 PM

You need common grounds man. I've used different supplies and it worked as long as there was a common ground.