February 14, 2013
about 2 years ago
I’ve found a problem with Circuit #3 RGB LED.
In the circuit diagram, and also in the sketch, we are told to connect the RGB LED common to ground. I’ve tried 3 different types of RGB LED’s and even changed the resistors to 270 ohm (that came with the RGB’s) and it will not work. However if I connect the RGB LED common to 5 volts it works perfectly.
Are the instructions wrong or am I doing something wrong?
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