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Author Topic: Need help reversing a button  (Read 128 times)
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CyborgHamster
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« on: October 25, 2013, 11:53:05 am »
 Bigger Bigger Smaller Smaller Reset Reset
Hello,

I'm sure there is a simple solution to this but I can't find one. I have an led wired similar to http://arduino.cc/en/Tutorial/Fade. Instead of the LED fading in and out, I want the LED to light up by default and turn off when a button is held in. I know I can do this using code, but I was wondering how to do this using only the 5V and GND pegs.

Any help will be appreciated.
Thanks
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AWOL
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I don't think you connected the grounds, Dave.
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« Reply #1 on: October 25, 2013, 12:14:32 pm »
 Bigger Bigger Smaller Smaller Reset Reset
Use a normally-closed switch.
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"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
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CyborgHamster
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« Reply #2 on: October 25, 2013, 12:17:49 pm »
 Bigger Bigger Smaller Smaller Reset Reset
I knew it was something simple. I did not know those existed.

Thanks!!!
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Pelleplutt
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« Reply #3 on: October 25, 2013, 12:59:58 pm »
 Bigger Bigger Smaller Smaller Reset Reset
Let the pushbutton short the LED. This will draw a little bit more current but..........

Pelle
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