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Nov 21, 2017 at 21:24 history closed user31481
gre_gor
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Duplicate of How to increment and decrement an output voltage by using two buttons?
Nov 20, 2017 at 16:36 review Close votes
Nov 21, 2017 at 21:24
Jan 7, 2016 at 20:17 comment added ott-- The statement if (digitalRead(buttonApin) == LOW, fadeValue) is equivalent to if (digitalRead(fadeValue). I guess that's not what you wanted to do. See en.wikipedia.org/wiki/Comma_operator
S Sep 9, 2015 at 12:28 history suggested dda CC BY-SA 3.0
spelling, code formatting
Sep 8, 2015 at 21:43 review Close votes
Sep 23, 2015 at 3:02
Sep 8, 2015 at 19:23 review Suggested edits
S Sep 9, 2015 at 12:28
Jun 10, 2015 at 18:30 comment added Chris Stratton On the contrary, the resistance whatever it is is going to be extremely noticeable - either the LED fails, or if it doesn't, that effective resistance is what is setting the operating current and preventing it from doing so. Given the maximum current rating I expect it's a bit higher than 25 ohms effective when operating in excess of rated current.
Jun 10, 2015 at 18:28 comment added Ignacio Vazquez-Abrams @ChrisStratton: The 25ohm resistance of the output is going to be unnoticeable at best.
Jun 10, 2015 at 18:26 comment added Chris Stratton @IgnacioVazquez-Abrams - that is not true - it's not an LED by itself, it's an LED in series with a resistance (external or internal). And that means that the current which flows, and hence brightness, is a function of overall voltage. Of course, most LED dimmers work with a fixed, optimal voltage and varying duty cycle. It's an open question here if the Arduino's PWM output should be considered smoothed, or pulsed - that depends on the frame rate, and capacitance in comparison to load.
Jun 10, 2015 at 17:44 history edited A-UNO help CC BY-SA 3.0
Fixed code a little bit
Jun 10, 2015 at 17:25 comment added Ignacio Vazquez-Abrams "obviously if I get the Light to turn on I get light I can dim the light an brighten the light according to how often I push the button..." No. You can't. This is a LED.
Jun 10, 2015 at 17:22 comment added A-UNO help obviously if I get the Light to turn on I get light I can dim the light an brighten the light according to how often I push the button to the max 5v i think I'll be fine but what about my code? how bad is it?
Jun 10, 2015 at 17:17 answer added Majenko timeline score: 0
Jun 10, 2015 at 17:16 comment added Ignacio Vazquez-Abrams Something that gives you an actual number.
Jun 10, 2015 at 17:15 history edited Majenko CC BY-SA 3.0
added 232 characters in body
Jun 10, 2015 at 17:15 comment added A-UNO help okay so what would use for an output?
Jun 10, 2015 at 17:07 comment added Ignacio Vazquez-Abrams Varying the voltage on a LED does almost nothing.
Jun 10, 2015 at 17:06 comment added A-UNO help Because it would be the same thing when I connect it to a different source I will still be able to vary voltage IF i can get this running.
Jun 10, 2015 at 16:50 comment added Ignacio Vazquez-Abrams Why would you use a LED to test your output instead of, say, a DMM?
Jun 10, 2015 at 16:46 history asked A-UNO help CC BY-SA 3.0