This is my first post on this forum. Yesterday I received my Arduino Inventors Kit and I love it! This is my first experience with microcontrollers and electronics and I just wire everything up like it's described in the guide. I started with the first example in the guide (blinking LED). The guide tells me to place a wire between the breadboard and the following pins on the microcontroller: 5V, GND and 13 pins 5V, GND. Also a resistor is placed to connect the LED with the GND on the breadboard. What is the resistor for and why is it on the GND of the LED and not between, like a bridge, the pin 13 of the microcontroller and the LED. I also noticed that when I remove the wire between the 5V and the breadboard everything is still working? How is this possible, I thought it was there for the current to flow from the microcontroller to the breadboard?!
Hope anyone could help me with this as I really want to learn more of it