Go Down

Topic: Can I add LEDs to small electronics when they originally had none? (Read 775 times) previous topic - next topic

MAS3

You need to know what that switch does exactly.
Does it switch a voltage to GND ?
Or does it switch a power line (less likely) ?
Once you know that, you can figure out whether you need an extra transistor or not.
You should also consider to use high efficiency LEDs, which only need something like 2 mA instead of 20 mA, and so save you some battery time.
Have a look at "blink without delay".
Did you connect the grounds ?
Je kunt hier ook in het Nederlands terecht: http://arduino.cc/forum/index.php/board,77.0.html

jpro


You need to know what that switch does exactly.
Does it switch a voltage to GND ?
Or does it switch a power line (less likely) ?
Once you know that, you can figure out whether you need an extra transistor or not.
You should also consider to use high efficiency LEDs, which only need something like 2 mA instead of 20 mA, and so save you some battery time.



Thank you so much for the guidance. I really appreciate it. This will get me headed in the right direction. I really like the idea of having my player glow blue through the window in the lid while it is playing. Knowing that it is possible gives me hope I will eventually get it figured out.

Oh, and Boffin, thanks for absolutely nothing! So glad you could grace us with your presence regardless. We're not worthy!  :smiley-roll:

MAS3

As a matter of fact, Boffin1 i think is right with his remark about the wrong forum part.
As your question is about LED and this part of the forum is called LEDs and multiplexing, i think you might have thought this to be right.
However, General Electronics would have been the better choice in this case.
But that doesn't mean your questions shouldn't be answered if possible.

So if you have any more questions, just ask.
A moderator might move this thread to another forum part if they decide that to be more suitable.
Have a look at "blink without delay".
Did you connect the grounds ?
Je kunt hier ook in het Nederlands terecht: http://arduino.cc/forum/index.php/board,77.0.html

Go Up