atmdc
Newbie level 3
I am trying to add some extra smd LEDs to a ps3 controller. Only issue I am having is that I dont know what supply voltage to calculate the resistors with because it is a wireless controller so the voltage will change as it is used right?
the battery is rated at 3.7v with a maximum charge rating of 4.2v. I measured the fully charged batter with a dmm and it was 5.2v
Which of the 3 voltage numbers should I use to calculate resistors for my LEDs for them to be as close to maximum lumination without over powering them?
if it makes a difference the smd LEDs are
3-3.2v
20-30mA
Thanks alot, I have been trying the entire day to figure this one out
the battery is rated at 3.7v with a maximum charge rating of 4.2v. I measured the fully charged batter with a dmm and it was 5.2v
Which of the 3 voltage numbers should I use to calculate resistors for my LEDs for them to be as close to maximum lumination without over powering them?
if it makes a difference the smd LEDs are
3-3.2v
20-30mA
Thanks alot, I have been trying the entire day to figure this one out