How do different electronic components make something "work"? Answered
I've been trying to learn electronics and arduino. The one thing I don't get is when do you need a transistor or resistor or capacitor. I know that Resistors add resistance and what not but when do you decide to add things to the circuit? Like why do I need a resistor on LED's and so on. why can't I just connect it. I feel like I might understand but I need someone to really make the connection for me. I know its a pretty stupid and noobish question.