Wii sensor bar power

[Darximor]

Hello,
I have the official IR bar that requires 7.5V and I would like to supply it via USB 5v.
Does the LED will turn on with only 5v, it will work if I remove two LED to require less power?
Thank you

[AnyOldName3]

It'd be better to replace the resistors in the bar with weaker ones, that way you end up with the same voltage across the same number of LEDs, so keep the same brightness and range etc. Bear in mind, though, that the official sensor bar has annoying triangle-head screws, so if you're going to open it, you might need a special screwdriver.

[Darximor]

(05-10-2015, 11:16 PM)AnyOldName3 Wrote: It'd be better to replace the resistors in the bar with weaker ones, that way you end up with the same voltage across the same number of LEDs, so keep the same brightness and range etc. Bear in mind, though, that the official sensor bar has annoying triangle-head screws, so if you're going to open it, you might need a special screwdriver.

Thanks for this reply, indeed, i need a special screwdriver but i don't have this one :/
I have cut the wire of the bar and reconnect the red and copper/silver wire but it doesn't work (might be a short circuit?)

[AnyOldName3]

The strands of the wires are probably individually coated in plastic, like the wires in earphones. The only way I know to even slightly reliably work with that type is to get a soldering iron and just hold the wire in the solder until the plastic melts and boils off. You might find the technique takes a while to get the hang of - I usually end up destroying more wire than I clean, even after doing it loads, but it's just time consuming more than anything.