Hi!
I'm not sure does I'm in the right section of this forum, but hope yes.
I always worry about when I connect my scope to mine development board for AVR which is connected/powered from my desktop PC USB port.
My scope is a Siglent SDS1052DL+ scope, the PC usb GND is connected to mains GND earth, together with my scope of course.
somehow I always have some strange feeling when I try to connect my scope probe to the dev board to check for signals.
Is there any/cheap way to make the usb port complete isolated from the dev board but still to use it for powering and programming the board?
For now I never experienced any problem but I'm afraid, one day sht will happen...
Thank you.