I had a really neat creation that I was very excited about. Sadly, I some trouble with coding. I'm still posting though, I at least wanted to complete the day.
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I just did this one as well! Pay no attention to the left positive bus being used as a ground bus.
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you can still simplify your breadboard but it is correct. cheers! how's your code coming along?
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I was planning on simplifying the circuits. But wanted to first play around with "if" a bit first. Basically, like if we are trying to conserve power, then, "if" red gets turned on, then "blue/green = low"... Or a flashing warning if all three are on, etc etc.....
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while practically working, it is incorrect to use 3.3 volts on 5v logic
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no worries. The perspective hides the 4th pin on the header
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oops, i saw wrong.
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it's a good thing that it's using 5v, then
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starting to make sense now. one obervation though: arduino has internal pull up/down resistors for your switches that you enable in software.
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thanks for the tip
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Forgot to add,
To use the internal pullups, when you declare the pin as an input, you have to call it as:
pinMode(pin, INPUT_PULLUP);
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It has internal pull ups!
It does not have internal pull down resistors.
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Eduard Maines