would this be considered a brigth led? if not, gimme a radioshack link to a bright one.
and if i hooked it to a 5v power supply, it would not work. this runs on 2.2-2.4v
i would need a resistor right? anything more? and how many ohms would that be? i want to hooks a led to a usb cord. so when i plug it in it will light up...w/e
question 2. for another project i am building a 5v power supply off of a 9v battery. i am gonna hook it up to a LM7805. i read somewhere to attach a 220uf capacitor to the gournd and output pins of theLM7805. is that worth it? and should i add anything else? i also read somewher i should use a small resistor between those two pins too. should i juse anything else? or...what i am asking is tell me all u know about what i should do if i build a 5v power supply.