need to add a led to a usb wire to indicate its connected

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Aaron Hill

Joined Feb 10, 2018
3
hi all im new to electronics ,i have made a usb switch using a 4pdt on/on switch .
it works well .but what i would like to do is add a led to each usb output to indicate which one is active but i dont know how to do it any help would be appreciated
 

DickCappels

Joined Aug 21, 2008
10,152
Warning: Make sure that the ground connection is not switched. That is to protect devices in the host and peripherals from damage as the connections are being switched.
 

DickCappels

Joined Aug 21, 2008
10,152
I would. That way the signal pins cannot connect before the ground is established. If you use at a USB connector you will see that the ground connection sticks out further so it makes contact first.
 
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