USB 5v to power accent LED's

icest0rm · Jan 10, 2003

USB 5v to power accent LED\'s

I have a few blue and white LEDs taped to my computer desk in such a way as to give accent light to the keyboard for late computing sessions in a darkened room. I've been running these LEDs on 4 AA Nimh but I keep forgetting to flip the switch off. Would it be possible to connect the LEDs to the 5v supply voltage off of a USB hub without toasting my PC?

tvodrd · Jan 10, 2003

Re: USB 5v to power accent LED\'s

Should work fine. Don't have the specs handy, but USB is good for *at least* an Amp. Select appropriate current limiting resistors for your LEDs. And welcome to the forums!

Larry

CiTY · Jan 10, 2003

Re: USB 5v to power accent LED\'s

All the led lights for notebooks plug into the USB port. I have a couple of Targus led lights that plug into the USB port. Got it for $3 after rebate. The build should be straight forward, good luck.

Floating Spots · Jan 10, 2003

Re: USB 5v to power accent LED\'s

All devices start out 100mah, then high speed devices ask for and are allocated 500mah. The item to avoid is high inrush current.

star882 · Jan 10, 2003

Re: USB 5v to power accent LED\'s

500ma for a port on the computer, 100ma for a port on the hub.

Entropy · Jan 11, 2003

Re: USB 5v to power accent LED\'s

I thought it was 100 mA for some devices, 500 mA for others. (I believe that a 500 mA device is required to report itself as high-power, not sure.)

USB 5v to power accent LED's

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