umm.....
i was at radioshack.. and i picked up some red leds. here are the stats:
2.6vdc
28mA
10mcd
and when I got to the resistor, i didn't know what to get.. i tried the linear led calculator, and for the 5v power supply, i have to get a 100ohm resistor..and for the 12 volt, i have to get a 390 phm resistor..
now the questions i have are:
1. what is the power rating for the motherboard connections for the power on and the activity led??
2. When I was looking at the resistor, all of them were divided up into catglories like 1/2 watt, 1 watt, and 1/4 watt. Which one am I suppose to get??
edit: some examples:
http://www.radioshack.com/product.a...name=CTLG_011_002_014_002&product_id=271-1131
and
http://www.radioshack.com/product.a...name=CTLG_011_002_014_001&product_id=271-1311
i was at radioshack.. and i picked up some red leds. here are the stats:
2.6vdc
28mA
10mcd
and when I got to the resistor, i didn't know what to get.. i tried the linear led calculator, and for the 5v power supply, i have to get a 100ohm resistor..and for the 12 volt, i have to get a 390 phm resistor..
now the questions i have are:
1. what is the power rating for the motherboard connections for the power on and the activity led??
2. When I was looking at the resistor, all of them were divided up into catglories like 1/2 watt, 1 watt, and 1/4 watt. Which one am I suppose to get??
edit: some examples:
http://www.radioshack.com/product.a...name=CTLG_011_002_014_002&product_id=271-1131
and
http://www.radioshack.com/product.a...name=CTLG_011_002_014_001&product_id=271-1311