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[veng3r]

(11-16-2012, 04:25 AM)veng3r Wrote: I've got an official black 10 LED sensor bar, a Wiimote motion plus limited edition that came with Skyward Sword and a cheap USB Bluetooth dongle.

(11-16-2012, 05:28 AM)veng3r Wrote: Whats the recommended way of running a 10 LED sensor bar off USB power?

(11-16-2012, 08:59 AM)veng3r Wrote: Thanks for the info. It sounds like I'd just be better off giving it the right amount of power it needs as I have no idea how to work that out.

I think my my easiest option is to solder the right kind of power supply to it replacing the lead it comes with. What is the ideal volts and amps to power this with? There seems to be a lot of conflicting info on whether it needs 7v or 12v and I can't find any info on how many amps it needs.

(11-16-2012, 09:49 AM)veng3r Wrote: Can I not just feed it the same or less volts and amps that the Wii does? I just need to know how many volts and amps the Wii gives it and then if the psu I use gives it a bit less then I know I won't burn out the LEDs. It might be dimmer but it should be fine as I'm only a few meters away and there are people getting away with powering them off less than 5v from USB.

To reiterate, could somebody please confirm how many volt and amps the Wii feeds a 10 LED bar?

(11-16-2012, 10:14 PM)ulao Wrote: Assuming you mean the usb port the questions is feed what? Since you are making the bar that makes no sense. If you buy a usb bar already made that says it support usb then its going to work off usb from the wii or a computer. In your cases you are designing the bar so the wii would blow the bar just like a usb from a computer?

Maybe you mean the actual wii bar power supply I think its around 7.

The thing you are not getting is that electricity flows from source to device ( + voltage to ground ). So if your source is 5 volts and you pull 2 amps of current that is not the same is pulling 800ma of current. To adjust for the right value you dont just increase/decrease the volts you change the resistor. One more time, you need to know the forward voltage of the LED. If you are getting the leds from an existing bar that was from a usb then stay in the 5 volt range. Do the math and calculate the right resistance. Guessing like you are suggesting is only going to end up bad. If you have the money to experiment like that just buy a 10 led bar?

OK, I'll start from the beginning and try to explain further. I've got an official black 10 LED sensor bar (I already own) that I want to power (without plugging it into the Wii). I've been told earlier in the thread that USB doesn't give enough power so to avoid changing LED's and/or resistors and the complications that arise with that it looks like my easiest option is to just solder the right kind of power supply to it.

I just need to know how many volts and amps the Wii gives/supplies/feeds the sensor bar. Then if the psu I use gives it a bit less I know I won't burn out the LEDs. It might be dimmer but it should be fine as I'm only a few meters away and its going to be better than running off USB or blowing the LEDs with a 9v battery.

To reiterate, could somebody please confirm how many Volt and Amps the Wii feeds/gives/supplies a 10 LED sensor bar? I.e. How many Volts and Amps does the official 10 LED sensor bar need to work correctly?

I hope this makes sense now. Thanks.