Instructables

Step 6: Add a Power-On LED

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In this step we will add an LED that will glow when the key is connected to an USB port. Consult http://www.instructables.com/id/The-Smallest-USB-LED/ for more details.

Connect the red LED #2 to the outer USB connectors. Do not forget the 10K resistor in series.

Glue and tape the whole.

Test. (I used an external HD with built-in USB hub, but you can connect directly to your computer, if you trust yourself.)
 
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Ktooms5 years ago
how do i know where to connect the LED's for data access and power on?