I'm a freshmen EE major and I, quite unfortunately, don't know much about electronics yet (I actually just changed my major from business to EE.) I was thinking about creating a project that has red, blue, and green LED connected together and sequencing through them. My question as of right now is can I connect, lets say, 10 LEDs together (by just soldering the cathode of one to the anode of the other) and connect the remaining anode to a pin and the remaining cathode to a ground will damage my Arduino?
From what I've read, a pin supplying 5V of current will supply more if the connected components "demand" it (aka the huge difference of electron density) and I'm guessing this will damage the chip.
Is this correct? Also, if I have future questions such as this, where can I reference to?